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Standard Ignition PVS16 Ported Vacuum Switch
| Brand | Standard Ignition PVS16 |
|---|---|
| Contents | Ported Vacuum Switch |
| Thread Size - NPT | 3/8" - 18 Thread |
| Fits | Oldsmobile, Buick, Cadillac, Chevrolet, Pontiac, GMC, and Ford · 369 vehicles |
OEM-spec construction. Brass and high-temperature plastic housing for precision fit and performance.
Thermal elements. Specially designed for improved performance.
Quality controlled. Made through a complete process from components to finished product.
Cross-references Dorman - HELP 81042, FEL-PRO 13202 and Gates 36601 for the same application. See all 12.
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Not what you need? See all Ported Vacuum Switch options
Ported Vacuum Switch for Emissions Control
Standard Ignition PVS16 is a ported vacuum switch built for precise vacuum routing in emission-control systems. It uses a brass and high-temperature plastic housing built to OEM specification, with thermal elements engineered for consistent operation.
Fits a wide range of 1974-1984 Chevrolet, Buick, Oldsmobile, Pontiac, Cadillac, and GMC applications, including Chevrolet Camaro, El Camino, Malibu, and Corvette models that use a 2-port ported vacuum switch.
Key Features
- Ported Vacuum Switch with 2 hose connectors
- 3/8"-18 NPT thread size
- Brass and high-temperature plastic construction
- OEM-spec fit and performance targets
- Thermal element design for controlled vacuum switching
- Direct replacement for many GM emission-control applications
Detailed Description
The Standard Ignition PVS16 is designed for vehicles that rely on a ported vacuum signal to manage emission-system operation. Standard Ignition builds this switch with controlled manufacturing and quality checks from component to finished part, helping maintain consistent performance across the application range. This part cross-references Dorman HELP 81042 and Gates 36601 for the same application.
Common search applications include a ported vacuum switch for 1980 Chevrolet C10, a 2-port vacuum switch for 1979 Pontiac Firebird, and an OEM-style emission switch for 1981 Buick Riviera. The PVS16 also appears in fitment for Chevrolet Malibu, GMC Jimmy, and Oldsmobile Cutlass models listed in the vehicle coverage.
What It Is Used For
- Restoring proper vacuum signal routing in EGR and emission-control circuits
- Replacing a failed 2-port ported vacuum switch that causes incorrect vacuum timing
- Addressing rough emissions-system operation on GM cars and trucks
- Correcting vacuum leaks or inconsistent switching caused by worn internal elements
- Supporting proper operation on vehicles with California, Canada, Federal, or U.S. emissions configurations
Installation Notes and Tips
Verify the thread size, hose connector count, and emissions calibration before installation. Match the original switch style and confirm the vehicle’s year, make, model, and emissions package against the listed fitment. Use clean vacuum hoses and inspect adjacent lines for cracks or hardening before installing the new switch.
Quality Assurance
Standard Ignition manufactures emission components with process control from raw componentry through final assembly. The PVS16 is built to OEM specification using brass and high-temperature plastic materials for precision fit and repeatable performance.
This part fits 369 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1984 | Oldsmobile | Firenza | — | 2.0L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Buick | Skyhawk | Automatic | 1.8L | L4 | N/A | w/ U.S. Emissions; Blue; 2 Ports |
| 1982 | Cadillac | Cimarron | — | 1.8L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Chevrolet | Cavalier | Automatic | 1.8L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Chevrolet | El Camino | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1982 | Oldsmobile | Firenza | — | 1.8L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Pontiac | Acadian | — | 1.8L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1982 | Pontiac | J2000 | — | 1.8L | L4 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Buick | Century | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Buick | LeSabre | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Buick | Riviera | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 104 Deg.; 2 Ports |
| 1981 | Chevrolet | Bel Air | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Bel Air | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Camaro | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Camaro | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Camaro | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Caprice | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Caprice | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Caprice | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Corvette | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | El Camino | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | El Camino | — | 3.8L | V6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Impala | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Impala | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Impala | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Malibu | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1981 | Chevrolet | Malibu | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Monte Carlo | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Chevrolet | Monte Carlo | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Oldsmobile | Cutlass | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Oldsmobile | Delta 88 | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | Firebird | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | Firebird | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | Grand LeMans | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | Grand Prix | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | LeMans | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1981 | Pontiac | LeMans | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Buick | Century | — | 5.0L | V8 | N/A | w/ Canada Emissions; w/ Calif. Emissions; Blue; 2 Ports |
| 1980 | Buick | Regal | — | 5.0L | V8 | N/A | w/ Canada Emissions; w/ Calif. Emissions; Blue; 2 Ports |
| 1980 | Buick | Riviera | — | 5.0L | V8 | N/A | w/ Canada Emissions; w/ Calif. Emissions; Blue; 104 Deg.; 2 Ports |
| 1980 | Buick | Skyhawk | — | 3.8L | V6 | N/A | — |
| 1980 | Chevrolet | C10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | C10 Suburban | — | 4.1L | L6 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1980 | Chevrolet | C20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Camaro | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Camaro | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | Chevrolet | Camaro | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Caprice | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Caprice | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Caprice | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Corvette | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Corvette | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | El Camino | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | El Camino | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | G10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | G20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Impala | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Impala | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Impala | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | K10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | K10 Suburban | — | 4.1L | L6 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1980 | Chevrolet | K5 Blazer | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Malibu | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Malibu | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Monte Carlo | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Chevrolet | Monte Carlo | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | C1500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | C1500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | C2500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | C2500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | C3500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | G1500 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | G2500 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | Jimmy | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | K1500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1980 | GMC | K1500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | K2500 | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | K2500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | GMC | K3500 | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Oldsmobile | Cutlass | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Oldsmobile | Cutlass Calais | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Oldsmobile | Cutlass Cruiser | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Oldsmobile | Cutlass Salon | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Pontiac | Firebird | — | 5.0L | V8 | N/A | w/o Calif. Emissions; Blue; 2 Ports |
| 1980 | Pontiac | Firebird | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1980 | Pontiac | Grand Am | — | 5.0L | V8 | N/A | w/o Calif. Emissions; Blue; 2 Ports |
| 1980 | Pontiac | Grand Prix | — | 5.0L | V8 | N/A | OE No. 3031549; w/o Calif. Emissions; Blue; 2 Ports |
| 1980 | Pontiac | LeMans | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Buick | Century | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | Century | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Buick | Century | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | LeSabre | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | LeSabre | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | Regal | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | Regal | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | Skyhawk | — | 3.8L | V6 | N/A | — |
| 1979 | Buick | Skylark | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Buick | Skylark | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C10 Suburban | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C20 Suburban | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C30 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | C30 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Camaro | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Caprice | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Caprice | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Caprice | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Corvette | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | El Camino | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | El Camino | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Chevrolet | El Camino | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | G10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | G20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | G30 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Impala | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Impala | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Impala | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K10 Suburban | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K20 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K20 Suburban | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K30 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | K5 Blazer | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Malibu | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Malibu | — | 3.3L | V6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Malibu | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Monte Carlo | — | 3.3L | V6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Monte Carlo | — | 4.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Monte Carlo | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Monza | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Nova | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Nova | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | Nova | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | P10 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | P20 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | P30 | — | 4.8L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Chevrolet | P30 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | C1500 Suburban | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | C2500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | C2500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | C3500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | G1500 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | G2500 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | G3500 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | Jimmy | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | K1500 | — | — | — | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | K1500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | K2500 | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | K2500 Suburban | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | K3500 | — | — | — | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | GMC | P1500 | — | 4.8L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | P2500 | — | 4.8L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | GMC | P3500 | — | 4.8L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Oldsmobile | 98 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Custom Cruiser | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Custom Cruiser | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Cutlass | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Oldsmobile | Cutlass Calais | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Cutlass Calais | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Cutlass Salon | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Cutlass Salon | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Delta 88 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Omega | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Omega | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Oldsmobile | Starfire | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Oldsmobile | Toronado | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Firebird | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Firebird | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Firebird | — | 4.9L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Grand Am | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Grand LeMans | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Pontiac | Grand Prix | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Pontiac | Laurentian | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | LeMans | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1979 | Pontiac | LeMans | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Parisienne | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Phoenix | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Phoenix | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1979 | Pontiac | Sunbird | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C20 | — | 7.4L | V8 | N/A | OE No. 3031549; w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | C20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C30 | — | 7.4L | V8 | N/A | OE No. 3031549; w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | C30 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | C30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Camaro | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Camaro | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Caprice | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Caprice | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | El Camino | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | G10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | G10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | G20 | — | 6.6L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | G20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | G30 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | G30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Impala | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Chevrolet | Impala | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K10 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K10 | — | 6.6L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | K10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K10 Suburban | — | 6.6L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | K20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K20 | — | 6.6L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | K20 | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K30 | — | 6.6L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | K5 Blazer | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K5 Blazer | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | K5 Blazer | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Monte Carlo | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Chevrolet | Monza | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Nova | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | Nova | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Chevrolet | P20 | — | 5.7L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | P30 | — | 7.4L | V8 | N/A | OE No. 3031549; w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | Chevrolet | P30 | — | 5.7L | V8 | N/A | w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | GMC | G15 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | G15 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | G25 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | G25 | — | 6.6L | V8 | N/A | OE No. 3031549; w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | GMC | G35 | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | G35 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | G35 | — | 6.6L | V8 | N/A | OE No. 3031549; w/ Calif. Emissions; Blue; 2 Ports |
| 1978 | GMC | Jimmy | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | Jimmy | — | 6.6L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | GMC | Jimmy | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Oldsmobile | Custom Cruiser | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Custom Cruiser | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Cutlass | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Oldsmobile | Cutlass | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Cutlass Calais | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Cutlass Salon | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Delta 88 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Omega | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Omega | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Oldsmobile | Starfire | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Pontiac | Firebird | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Pontiac | Grand Am | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Pontiac | Grand LeMans | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Pontiac | Grand Prix | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Pontiac | Laurentian | — | 5.0L | V8 | N/A | — |
| 1978 | Pontiac | LeMans | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1978 | Pontiac | Parisienne | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Pontiac | Phoenix | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1978 | Pontiac | Sunbird | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C10 Suburban | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C20 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C20 Suburban | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | C30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Camaro | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Camaro | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Caprice | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Caprice | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Chevette | — | 1.4L | L4 | N/A | w/ Federal Emissions; Blue; 2 Ports |
| 1977 | Chevrolet | Chevette | — | 1.6L | L4 | N/A | w/ Federal Emissions; Blue; 2 Ports |
| 1977 | Chevrolet | El Camino | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | El Camino | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | El Camino | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | G10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | G20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | G30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Impala | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Impala | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | K10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | K10 Suburban | — | — | — | N/A | — |
| 1977 | Chevrolet | K20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | K20 Suburban | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | K20 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | K30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Malibu | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Malibu | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Monte Carlo | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Monza | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Nova | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | Nova | — | 5.0L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1977 | Chevrolet | P20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Chevrolet | P30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | GMC | Jimmy | — | 4.1L | L6 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1977 | GMC | Jimmy | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1977 | GMC | Jimmy | — | 6.6L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1977 | Oldsmobile | Omega | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1977 | Oldsmobile | Starfire | — | 5.0L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C20 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | C30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | Camaro | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | Chevette | — | 1.6L | L4 | N/A | w/ Federal Emissions; Blue; 2 Ports |
| 1976 | Chevrolet | Chevette | — | 1.4L | L4 | N/A | w/ Federal Emissions; Blue; 2 Ports |
| 1976 | Chevrolet | El Camino | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | El Camino | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | G10 | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K20 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K5 Blazer | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | K5 Blazer | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | Malibu | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | Nova | — | 4.1L | L6 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | P20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | Chevrolet | P30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | GMC | G15 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1976 | GMC | G25 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1976 | GMC | G35 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1976 | GMC | G35 | — | 7.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1976 | GMC | Jimmy | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1975 | Chevrolet | Bel Air | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Bel Air | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | C10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | C10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | C20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | C20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | C30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Camaro | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Caprice | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Caprice | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Corvette | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | El Camino | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | El Camino | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | G10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | G20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | G30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Impala | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Impala | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K10 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K20 Suburban | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | K5 Blazer | — | 4.1L | L6 | N/A | Blue; 104 Deg.; 2 Ports |
| 1975 | Chevrolet | K5 Blazer | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Malibu | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Malibu | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Monte Carlo | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Monte Carlo | — | 6.6L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Monza | — | 4.3L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Nova | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | Nova | — | 4.3L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | P10 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | P20 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | Chevrolet | P30 | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1975 | GMC | G15 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1975 | GMC | G25 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1975 | GMC | G35 | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1975 | GMC | Jimmy | — | 5.7L | V8 | N/A | OE No. 3031549; Blue; 2 Ports |
| 1974 | Chevrolet | C10 Suburban | — | 7.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | Chevrolet | C10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | Chevrolet | C20 Suburban | — | 7.4L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | Chevrolet | C20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | Chevrolet | K10 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | Chevrolet | K20 Suburban | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| 1974 | GMC | G35/G3500 Van | — | 5.7L | V8 | N/A | Fitment: Ported Vacuum Switch with 2 ports |
| No rows match your filter. | |||||||
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 81042FEL-PRO — 13202Gates — 366012-10297P100736-213173-6929133-120303154919236490E906EC919