Dorman 645-781 A/C compressor clutch connector for the 1994-1999 Chevrolet C1500 and other vehicles connects the compressor clutch coil to its wiring. It replaces a connector that has gone missing or worn out through fatigue.
- Pigtail harness with two 18-gauge wires
- Female blade terminals
- Terminals made of tin brass
- Tube length of 8.25 in
Quick facts
- Part: Dorman 645-781 A/C compressor clutch connector
- Fits: 1994-1999 Chevrolet C1500 and other vehicles
- Material: Tin brass (terminals)
- Condition: New
A cracked, melted or corroded connector, frayed wires, or a compressor clutch that engages only now and then can all mean this connector needs replacing. Before you replace it, rule out a blown fuse, a faulty relay and a failed clutch coil, because any of those can also keep the clutch from engaging.
Fits
Listed for a wide range of Chevrolet, GMC, Cadillac, Buick, Oldsmobile and Pontiac models, including the 1994-1999 Chevrolet K1500 and the 1995-2000 Chevrolet Tahoe, with one connector per vehicle. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Quantity per vehicle: 1
- Tube length: 8.25 in
- Wire quantity: 2
- Wire gauge: 18
- Terminal type: blade, female
Build and materials
- Style: pigtail
- Terminal material: tin brass
- Condition: new
- Country of origin: China
In the box
One harness and two butt connectors.
Interchange: S-588
PT209 · 1P1239 · PT178 · EC12 · 12101937 · 607
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
PT209, 1P1239, PT178, EC12, 12101937, S-588, 607
Frequently Asked Questions
Does the Dorman 645-781 connector fit the 1994-1999 Chevrolet K1500?
Yes. Dorman 645-781 is listed for the 1994-1999 Chevrolet K1500, one per vehicle. For any other model, open the "Vehicles it fits" section and check your year and engine.
Does this A/C compressor clutch connector come with butt connectors?
Yes. Dorman 645-781 comes as one harness with two butt connectors.
What wire gauge and terminal type does this A/C compressor clutch connector have?
It has two 18-gauge wires ending in female blade terminals made of tin brass, with an 8.25 in tube length.
How can I tell if the A/C compressor clutch connector is damaged?
With the engine off and cool, look for cracks, melting or corrosion on the connector, or frayed wires. If the clutch engages only now and then, a shop can test the circuit.
Does Dorman 645-781 replace connector number S-588?
Yes. S-588 is one of the interchange numbers listed for Dorman 645-781.
