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Dorman 973-301 HVAC Blower Motor Resistor Connector - Front
| Brand | Dorman 973-301 |
|---|---|
| Overall Length (In) | 17 in |
| Package Contents | 4-Wire Harness |
| Terminal Gender | Female |
| Terminal Material | Metal |
| Terminal Type | Blade |
| Wire Gauge Measurement | 12 |
| Wire Gauge Measurement | 18 |
| Wire Quantity | 4 |
| Fits | Chevrolet, GMC, Oldsmobile, Pontiac, and Buick · 157 vehicles |
OE replacement. Replaces a damaged original equipment connector.
Corrosion-resistant terminals. Built for reliable electrical performance.
4-wire harness. Female blade terminals with metal construction.
Cross-references Standard Ignition S-1643, 1P1687 and 1055 for the same application. See all 7.
HVAC Blower Motor Resistor Connector Replacement
Dorman 973-301 is an HVAC blower motor resistor connector for vehicles with a 4-wire blower circuit. It replaces an original connector damaged by heat or corrosion and uses corrosion-resistant terminals for steady electrical contact. This Dorman 973-301 connector is a direct-fit repair choice for common Chevrolet, GMC, Buick, Oldsmobile, and Pontiac applications.
Key Features
- 4-wire harness with female blade terminals
- Built with metal terminals for dependable conductivity
- Uses 12-gauge and 18-gauge wire
- 17-inch overall length for service replacement routing
- Corrosion-resistant terminal design for damaged OE connectors
Detailed Description
When the blower motor resistor connector overheats or corrodes, HVAC fan operation can become intermittent or stop working altogether. Dorman 973-301 restores the electrical connection at the resistor circuit with a replacement harness built for the original application. It is a practical repair for Chevrolet Lumina, Chevrolet Tahoe, GMC Yukon, Pontiac Grand Prix, and similar GM platforms that use a 4-wire blower motor resistor connector. This part cross-references Standard Ignition S-1643 for the same application.
Common Problems This Part Can Solve
- Blower fan works only on certain speeds
- HVAC fan stops operating after connector heat damage
- Connector terminals show corrosion or discoloration
- Loose or burned resistor connector at the blower circuit
- Intermittent cabin air flow on GM HVAC systems
Installation Notes and Tips
Inspect the blower motor resistor and surrounding wiring before installation, since heat damage often affects more than the connector alone. Match the 4-wire layout, terminal style, and wire gauge to the original harness before splicing or terminating. Confirm vehicle-specific fitment for Chevrolet C2500, GMC K1500, Buick Regal, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix applications listed for this part.
Quality Assurance
Dorman designs replacement electrical connectors to restore failed original equipment connections with serviceable materials and corrosion-resistant terminals. Part number 973-301 is built as an OE-style repair connector for HVAC blower motor resistor service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Chevrolet | Lumina | — | — | N/A | Exc. Climate Control; w/Air Conditioning |
| 2000 | Chevrolet | C2500 | — | — | N/A | — |
| 2000 | Chevrolet | C3500 | — | — | N/A | — |
| 2000 | Chevrolet | K2500 | — | — | N/A | — |
| 2000 | Chevrolet | K3500 | — | — | N/A | — |
| 2000 | Chevrolet | Lumina | — | — | N/A | Exc. Climate Control; w/Air Conditioning |
| 2000 | Chevrolet | Tahoe | 5.7L | V8 | N/A | 4 Wire |
| 2000 | GMC | C2500 | — | — | N/A | — |
| 2000 | GMC | C3500 | — | — | N/A | — |
| 2000 | GMC | K2500 | — | — | N/A | — |
| 2000 | GMC | K3500 | — | — | N/A | — |
| 2000 | GMC | Yukon | 5.7L | V8 | N/A | 4 Wire |
| 1999 | Chevrolet | C1500 | — | — | N/A | — |
| 1999 | Chevrolet | C1500 Suburban | — | — | Front | — |
| 1999 | Chevrolet | C2500 | — | — | N/A | — |
| 1999 | Chevrolet | C2500 Suburban | — | — | Front | — |
| 1999 | Chevrolet | C3500 | — | — | N/A | — |
| 1999 | Chevrolet | K1500 | — | — | N/A | — |
| 1999 | Chevrolet | K1500 Suburban | — | — | Front | — |
| 1999 | Chevrolet | K2500 | — | — | N/A | — |
| 1999 | Chevrolet | K2500 Suburban | — | — | Front | — |
| 1999 | Chevrolet | K3500 | — | — | N/A | — |
| 1999 | Chevrolet | Lumina | — | — | N/A | — |
| 1999 | Chevrolet | Monte Carlo | — | — | N/A | — |
| 1999 | Chevrolet | Tahoe | — | — | N/A | — |
| 1999 | GMC | C1500 | — | — | N/A | — |
| 1999 | GMC | C1500 Suburban | — | — | Front | — |
| 1999 | GMC | C2500 | — | — | N/A | — |
| 1999 | GMC | C2500 Suburban | — | — | Front | — |
| 1999 | GMC | C3500 | — | — | N/A | — |
| 1999 | GMC | K1500 | — | — | N/A | — |
| 1999 | GMC | K1500 Suburban | — | — | Front | — |
| 1999 | GMC | K2500 | — | — | N/A | — |
| 1999 | GMC | K2500 Suburban | — | — | Front | — |
| 1999 | GMC | K3500 | — | — | N/A | — |
| 1999 | GMC | Yukon | — | — | N/A | — |
| 1998 | Chevrolet | C1500 | — | — | N/A | — |
| 1998 | Chevrolet | C1500 Suburban | — | — | Front | — |
| 1998 | Chevrolet | C2500 | — | — | N/A | — |
| 1998 | Chevrolet | C2500 Suburban | — | — | Front | — |
| 1998 | Chevrolet | C3500 | — | — | N/A | — |
| 1998 | Chevrolet | K1500 | — | — | N/A | — |
| 1998 | Chevrolet | K1500 Suburban | — | — | Front | — |
| 1998 | Chevrolet | K2500 | — | — | N/A | — |
| 1998 | Chevrolet | K2500 Suburban | — | — | Front | — |
| 1998 | Chevrolet | K3500 | — | — | N/A | — |
| 1998 | Chevrolet | Lumina | — | — | N/A | — |
| 1998 | Chevrolet | Monte Carlo | — | — | N/A | — |
| 1998 | Chevrolet | Tahoe | — | — | N/A | — |
| 1998 | GMC | C1500 | — | — | N/A | — |
| 1998 | GMC | C1500 Suburban | — | — | Front | — |
| 1998 | GMC | C2500 | — | — | N/A | — |
| 1998 | GMC | C2500 Suburban | — | — | Front | — |
| 1998 | GMC | C3500 | — | — | N/A | — |
| 1998 | GMC | K1500 | — | — | N/A | — |
| 1998 | GMC | K1500 Suburban | — | — | Front | — |
| 1998 | GMC | K2500 | — | — | N/A | — |
| 1998 | GMC | K2500 Suburban | — | — | Front | — |
| 1998 | GMC | K3500 | — | — | N/A | — |
| 1998 | GMC | Yukon | — | — | N/A | — |
| 1997 | Chevrolet | C1500 | — | — | N/A | — |
| 1997 | Chevrolet | C1500 Suburban | — | — | Front | — |
| 1997 | Chevrolet | C2500 | — | — | N/A | — |
| 1997 | Chevrolet | C2500 Suburban | — | — | Front | — |
| 1997 | Chevrolet | C3500 | — | — | N/A | — |
| 1997 | Chevrolet | K1500 | — | — | N/A | — |
| 1997 | Chevrolet | K1500 Suburban | — | — | Front | — |
| 1997 | Chevrolet | K2500 | — | — | N/A | — |
| 1997 | Chevrolet | K2500 Suburban | — | — | Front | — |
| 1997 | Chevrolet | K3500 | — | — | N/A | — |
| 1997 | Chevrolet | Lumina | — | — | N/A | — |
| 1997 | Chevrolet | Monte Carlo | — | — | N/A | — |
| 1997 | Chevrolet | Tahoe | — | — | N/A | — |
| 1997 | GMC | C1500 | — | — | N/A | — |
| 1997 | GMC | C1500 Suburban | — | — | Front | — |
| 1997 | GMC | C2500 | — | — | N/A | — |
| 1997 | GMC | C2500 Suburban | — | — | Front | — |
| 1997 | GMC | C3500 | — | — | N/A | — |
| 1997 | GMC | K1500 | — | — | N/A | — |
| 1997 | GMC | K1500 Suburban | — | — | Front | — |
| 1997 | GMC | K2500 | — | — | N/A | — |
| 1997 | GMC | K2500 Suburban | — | — | Front | — |
| 1997 | GMC | K3500 | — | — | N/A | — |
| 1997 | GMC | Yukon | — | — | N/A | — |
| 1997 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1996 | Chevrolet | C1500 | — | — | N/A | — |
| 1996 | Chevrolet | C1500 Suburban | — | — | Front | — |
| 1996 | Chevrolet | C2500 | — | — | N/A | — |
| 1996 | Chevrolet | C2500 Suburban | — | — | Front | — |
| 1996 | Chevrolet | C3500 | — | — | N/A | — |
| 1996 | Chevrolet | K1500 | — | — | N/A | — |
| 1996 | Chevrolet | K1500 Suburban | — | — | Front | — |
| 1996 | Chevrolet | K2500 | — | — | N/A | — |
| 1996 | Chevrolet | K2500 Suburban | — | — | Front | — |
| 1996 | Chevrolet | K3500 | — | — | N/A | — |
| 1996 | Chevrolet | Lumina | — | — | N/A | — |
| 1996 | Chevrolet | Monte Carlo | — | — | N/A | — |
| 1996 | Chevrolet | Tahoe | — | — | N/A | — |
| 1996 | GMC | C1500 | — | — | N/A | — |
| 1996 | GMC | C1500 Suburban | — | — | Front | — |
| 1996 | GMC | C2500 | — | — | N/A | — |
| 1996 | GMC | C2500 Suburban | — | — | Front | — |
| 1996 | GMC | C3500 | — | — | N/A | — |
| 1996 | GMC | K1500 | — | — | N/A | — |
| 1996 | GMC | K1500 Suburban | — | — | Front | — |
| 1996 | GMC | K2500 | — | — | N/A | — |
| 1996 | GMC | K2500 Suburban | — | — | Front | — |
| 1996 | GMC | K3500 | — | — | N/A | — |
| 1996 | GMC | Yukon | — | — | N/A | — |
| 1996 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1996 | Pontiac | Grand Prix | — | — | N/A | — |
| 1995 | Chevrolet | C1500 | — | — | N/A | — |
| 1995 | Chevrolet | C1500 Suburban | — | — | Front | — |
| 1995 | Chevrolet | C2500 | — | — | N/A | — |
| 1995 | Chevrolet | C2500 Suburban | — | — | Front | — |
| 1995 | Chevrolet | C3500 | — | — | N/A | — |
| 1995 | Chevrolet | K1500 | — | — | N/A | — |
| 1995 | Chevrolet | K1500 Suburban | — | — | Front | — |
| 1995 | Chevrolet | K2500 | — | — | N/A | — |
| 1995 | Chevrolet | K2500 Suburban | — | — | Front | — |
| 1995 | Chevrolet | K3500 | — | — | N/A | — |
| 1995 | Chevrolet | Lumina | — | — | N/A | — |
| 1995 | Chevrolet | Monte Carlo | — | — | N/A | — |
| 1995 | Chevrolet | Tahoe | — | — | N/A | — |
| 1995 | GMC | C1500 | — | — | N/A | — |
| 1995 | GMC | C1500 Suburban | — | — | Front | — |
| 1995 | GMC | C2500 | — | — | N/A | — |
| 1995 | GMC | C2500 Suburban | — | — | Front | — |
| 1995 | GMC | C3500 | — | — | N/A | — |
| 1995 | GMC | K1500 | — | — | N/A | — |
| 1995 | GMC | K1500 Suburban | — | — | Front | — |
| 1995 | GMC | K2500 | — | — | N/A | — |
| 1995 | GMC | K2500 Suburban | — | — | Front | — |
| 1995 | GMC | K3500 | — | — | N/A | — |
| 1995 | GMC | Yukon | — | — | N/A | — |
| 1995 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1995 | Pontiac | Grand Prix | — | — | N/A | — |
| 1994 | Buick | Regal | — | — | N/A | — |
| 1994 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1994 | Pontiac | Grand Prix | — | — | N/A | — |
| 1993 | Buick | Regal | — | — | N/A | — |
| 1993 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1993 | Pontiac | Grand Prix | — | — | N/A | — |
| 1992 | Buick | Regal | — | — | N/A | — |
| 1992 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1992 | Pontiac | Grand Prix | — | — | N/A | — |
| 1991 | Buick | Regal | — | — | N/A | — |
| 1991 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1991 | Pontiac | Grand Prix | — | — | N/A | — |
| 1990 | Buick | Regal | — | — | N/A | — |
| 1990 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1990 | Pontiac | Grand Prix | — | — | N/A | — |
| 1989 | Buick | Regal | — | — | N/A | — |
| 1989 | Oldsmobile | Cutlass Supreme | — | — | N/A | — |
| 1989 | Pontiac | Grand Prix | — | — | N/A | — |
| 1988 | Buick | Regal | — | — | N/A | — |
| 1988 | Pontiac | Grand Prix | — | — | N/A | — |
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