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Walker 31500 Exhaust Pipe Flange Gasket
| Brand | Walker 31500 |
|---|---|
| Gasket Type | Donut |
| Inside Diameter | 2.5 |
| Material | Fiber With Steel Core |
| Outside Diameter | 3.000 |
| Thickness | 0.61 |
| Fits | Chevrolet, GMC, and Pontiac · 59 vehicles |
OE-compatible fit. Works with OE exhaust components and Walker replacement parts.
Donut gasket. Seals exhaust joints with a fiber body and steel core.
Exhaust sealing part. Built for flange connections in exhaust repair.
Cross-references 8738, 13057-1 and 13155-1 for the same application. See all 7.
Walker 31500 Exhaust Pipe Flange Gasket
Walker 31500 is a donut-style exhaust pipe flange gasket built for sealing exhaust joints in OE-style repair applications. It uses a fiber construction with a steel core to help maintain a tight seal at the flange connection on select Chevrolet and GMC vehicles.
Key Features
- Donut gasket type for exhaust flange sealing
- Inside diameter: 2.5 in.
- Outside diameter: 3.000 in.
- Thickness: 0.61 in.
- Fiber with steel core construction
- Designed to work with OE exhaust components and Walker aftermarket replacement parts
Product Details
This exhaust pipe flange gasket is made for repair work where the flange connection needs a reliable seal between exhaust components. Walker 31500 is sized for a 2.5-inch inside diameter and is shaped as a donut gasket, making it a direct-fit style solution for many classic GM exhaust applications. It is commonly used on vehicles such as the Chevrolet C10, Chevrolet Impala, and GMC C1500 where the exhaust system uses a compatible flange connection.
Walker builds this gasket to pair with OE exhaust parts and Walker replacement components, helping maintain proper exhaust sealing at the joint. The fiber material with steel core adds structure while supporting the sealing surface under exhaust heat and vibration. Part number 31500 is also referenced in exhaust repair catalogs under cross-reference numbers 8738 and EG24057.
Vehicle Fitment
- Fits 1978-1981 Chevrolet C10, with Dual Exhaust; without Catalytic Converter
- Fits 1979-1981 GMC C1500, with Dual Exhaust
- Fits 1974 Chevrolet Bel Air
- Fits 1974 Chevrolet Caprice
- Fits 1974 Chevrolet Impala
- Fits 1974 Chevrolet Impala, Left Hand and Right Hand
- Fits 1974 Chevrolet Malibu, Left Hand and Right Hand
- Fits 1973-1974 Chevrolet Monte Carlo, Left Hand and Right Hand
- Fits 1973 Chevrolet Malibu, with Dual Exhaust; Left Hand and Right Hand
- Fits 1969 Chevrolet Bel Air, with Dual Exhaust; Left Hand and Right Hand
- Fits 1965-1966 Chevrolet Bel Air, with Dual Exhaust; Left Hand and Right Hand
- Fits 1966-1969 Chevrolet Caprice, with Dual Exhaust; Left Hand and Right Hand
- Fits 1966-1969 Chevrolet Caprice, Except High Performance; with Dual Exhaust; Left Hand and Right Hand
- Fits 1968-1969 Chevrolet El Camino, Left Hand and Right Hand; without Chambered Pipe
- Fits 1965-1969 Chevrolet Impala, with Dual Exhaust; Left Hand and Right Hand
- Fits 1967-1968 Chevrolet Bel Air, with Dual Exhaust
- Fits 1968 Chevrolet El Camino, Left Hand and Right Hand
Common Repair Uses
- Exhaust leak at the flange connection
- Noise from a worn or damaged exhaust gasket
- Loss of sealing after exhaust service or component replacement
- Fitment issues on 2.5-inch exhaust flange joints
- Replacement for deteriorated fiber or crushed gasket material
Installation Notes
Verify the flange style and gasket dimensions before installation. Clean both mating surfaces thoroughly so the donut gasket seats evenly, and inspect the flange for warping, corrosion, or damage that could affect sealing. Confirm the application notes for your vehicle, including dual exhaust, catalytic converter, left-hand/right-hand, and chambered pipe requirements where listed.
Quality Assurance
Walker exhaust sealing components are engineered for use with OE exhaust systems and Walker aftermarket replacement parts. Part number 31500 is built to match the dimensional requirements of listed applications and support a proper exhaust repair.
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Fuel Type | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1981 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1981 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust |
| 1981 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust |
| 1980 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1980 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1980 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust |
| 1980 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust |
| 1979 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1979 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1979 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust |
| 1979 | GMC | C1500 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust |
| 1978 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 131.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1978 | Chevrolet | C10 | — | — | 5.7L | V8 | DIESEL | 117.5" | N/A | with Dual Exhaust; without Catalytic Converter |
| 1974 | Chevrolet | Bel Air | — | Wagon | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Bel Air | — | Sedan | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Bel Air | — | Coupe | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Caprice | — | Wagon | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Caprice | Classic | Coupe | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Caprice | Classic | Convertible | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Caprice | Classic | Sedan | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Impala | — | Wagon | 7.4L | V8 | — | — | N/A | — |
| 1974 | Chevrolet | Impala | — | Sedan | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1974 | Chevrolet | Impala | — | Coupe | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1974 | Chevrolet | Malibu | — | — | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1974 | Chevrolet | Monte Carlo | Base | — | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1974 | Chevrolet | Monte Carlo | — | — | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1973 | Chevrolet | Malibu | — | — | 7.4L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1973 | Chevrolet | Monte Carlo | — | — | 7.4L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1969 | Chevrolet | Bel Air | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1969 | Chevrolet | Bel Air | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1969 | Chevrolet | Caprice | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1969 | Chevrolet | Caprice | — | Hardtop | 7.0L | V8 | — | — | N/A | Except High Performance; with Dual Exhaust; Left Hand and Right Hand |
| 1969 | Chevrolet | El Camino | — | — | 6.5L | V8 | — | — | N/A | Left Hand and Right Hand; without Chambered Pipe |
| 1969 | Chevrolet | Impala | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1969 | Chevrolet | Impala | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1968 | Chevrolet | Bel Air | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust |
| 1968 | Chevrolet | Bel Air | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust |
| 1968 | Chevrolet | Caprice | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1968 | Chevrolet | Caprice | — | Hardtop | 7.0L | V8 | — | — | N/A | Except High Performance; with Dual Exhaust; Left Hand and Right Hand |
| 1968 | Chevrolet | El Camino | — | — | 6.5L | V8 | — | — | N/A | Left Hand and Right Hand; without Chambered Pipe |
| 1968 | Chevrolet | El Camino | — | — | 5.3L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1968 | Chevrolet | El Camino | Base | — | 6.5L | V8 | — | — | N/A | Left Hand and Right Hand |
| 1968 | Chevrolet | Impala | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1968 | Chevrolet | Impala | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1967 | Chevrolet | Bel Air | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust |
| 1967 | Chevrolet | Bel Air | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust |
| 1967 | Chevrolet | Caprice | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1967 | Chevrolet | Caprice | — | Hardtop | 7.0L | V8 | — | — | N/A | Except High Performance; with Dual Exhaust; Left Hand and Right Hand |
| 1967 | Chevrolet | Impala | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1967 | Chevrolet | Impala | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Bel Air | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Bel Air | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Caprice | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Caprice | — | Hardtop | 7.0L | V8 | — | — | N/A | Except High Performance; with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Impala | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1966 | Chevrolet | Impala | — | — | 7.0L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1965 | Chevrolet | Bel Air | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
| 1965 | Chevrolet | Impala | — | — | 6.5L | V8 | — | — | N/A | with Dual Exhaust; Left Hand and Right Hand |
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