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1978 Wiring Harnesses

Individual Parts

Results 1 - 25 of 87

Air Conditioning Wiring Harness, , Chevy, GMC, Each

Part Number: PRF-30902

4.5 out of 5 stars ( 2 )

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1975-1980 Chevy Truck, Forward Lamp Harness, 1980 With Round Headlights, Restoration, Chevrolet, Each

Part Number: SUM-RP20659

5.0 out of 5 stars ( 1 )

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Wiring Harness, Replacement Duraspark II Wiring Harness, Standard Length, Jeep, Kit

Part Number: PRF-30819

4.86 out of 5 stars ( 7 )

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Wiring Harnesses, Engine Wiring Harness, OEM Replacement, Reproduction, Oldsmobile, Each

Part Number: SUM-RP21505

Not Yet Reviewed

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Wiring Harness, H4, 2 Headlamp System Wiring Upgrade, Kit

Part Number: OER-MX01132

4.5 out of 5 stars ( 2 )

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Wiring Harness, Classic Update Series Add-On, Rear Power Tailgate Window, Standard Length, Ford, Kit

Part Number: AWW-510358

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1964-1979 GM, Repair Pigtail, For Power Window Switch, For Single Power Window Switches, Includes Connector & Wire, Restoration, Chevrolet, Each

Part Number: SUM-RP20765

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Wiring Harnesses, Factory-Fit, Engine Wiring Harness, Chevrolet, Each

Part Number: AWW-CA58442

3.0 out of 5 stars ( 2 )

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Rear Lamp Harness, 1973-78 Chevy/GMC Truck, Rear, Stepside, Except 117.5 in. Wheel Base, Each

Part Number: SUM-RP22817

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Rear Lamp Intermediate Harness, 1977-80 Chevy/GMC Fleetside and Stepside Bed,1/2 Ton or 1-Ton With 135.5 in Wheel Base, Each

Part Number: SUM-RP22833

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Wiring Harness, Trailer Light Adapter, Step Side/Fleet Side. Truck, Chevy, Each

Part Number: SUM-RP20789

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Engine Wiring Harness, 1978 Chevy/GMC Truck, C-10, V/8, 305,350,400 C.I, Each

Part Number: SUM-RP22804

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Rear Lamp Harness, 1973-78 Chevy/GMC Truck, Rear, Stepside, With 117.5 in. Wheel Base, Each

Part Number: SUM-RP22821

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Wiring Harnesses, RetroBright, Ground Switched Harness, Easy Installation, Toyota, Land Cruiser, Each

Part Number: HLY-H840

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This product may not be eligible for select promotional offers

Wiring Harnesses, Wiring Pigtails, for Single Power Window Switch Connectors, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: AWW-36048

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1977-1982 Chevy Truck , Rear Lamp Intermediate Harness , Fleetside and Stepside , 131.5 Wheel base , Restoration , Chevrolet , Each

Part Number: SUM-RP20760

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Engine Harness, 1978 Jeep CJ5/CJ7, V8, With Manual Trans, Reproduction Of OEM#5462433, Best Quality, Built From OEM Blue Prints, Each

Part Number: SUM-RP23081

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Wiring Harnesses, Engine Wiring Harness, OEM Replacement, Reproduction, Chevy, Each

Part Number: SUM-RP21521

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Wiring Harnesses, Power Window Wiring Harnesses, Chevrolet, Pontiac, Each

Part Number: AWW-CA67300

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Wiring Harness, Tachometer Wiring Harness, OEM Replacement, Restoration, Pontiac,Each

Part Number: SUM-RP21664

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Wiring Harness, Power Window Wiring Harness, OEM Replacement, Restoration, Chevy, Pontiac, Each

Part Number: SUM-RP21611

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Wiring Harnesses, Fuel Tank Sender Harnesses, Chevrolet, Pontiac, Each

Part Number: AWW-36269

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Dome Lamp Harness, 1973-82 Chevy/GMC Truck, All 2 Door , Except Blazer, Jimmy, Roof Dome Lamp To Extension Harness, Each

Part Number: SUM-RP23182

Not Yet Reviewed

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Park Lamp Jumper Harness, Park Lamp To Forward Lamp Harness, Restoration, Pontiac, Each

Part Number: SUM-RP20722

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