Availability
1978 Wiring Harnesses
Showing In Stock Items. Show All 116 Items.
Air Conditioning Wiring Harness, , Chevy, GMC, Each
Part Number: PRF-30902
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
1973-1982 Chevy Truck, Rear Lamp Harness, Rear, Fleetside, Restoration, Chevrolet, Each
Part Number: SUM-RP20755
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
1975-1980 Chevy Truck, Forward Lamp Harness, 1980 With Round Headlights, Restoration, Chevrolet, Each
Part Number: SUM-RP20659
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, Replacement Duraspark II Wiring Harness, Standard Length, Jeep, Kit
Part Number: PRF-30819
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Engine Wiring Harness, OEM Replacement, Reproduction, Oldsmobile, Each
Part Number: SUM-RP21505
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, H4, 2 Headlamp System Wiring Upgrade, Kit
Part Number: OER-MX01132
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, Classic Update Series Add-On, Rear Power Tailgate Window, Standard Length, Ford, Kit
Part Number: AWW-510358
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
1964-1979 GM, Repair Pigtail, For Power Window Switch, For Single Power Window Switches, Includes Connector & Wire, Restoration, Chevrolet, Each
Part Number: SUM-RP20765
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Factory-Fit, Engine Wiring Harness, Chevrolet, Each
Part Number: AWW-CA58442
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Lamp Harness, 1973-78 Chevy/GMC Truck, Rear, Stepside, Except 117.5 in. Wheel Base, Each
Part Number: SUM-RP22817
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, Trailer Light Adapter, Step Side/Fleet Side. Truck, Chevy, Each
Part Number: SUM-RP20789
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Summit Racing™ Engine Wiring Harness for 1978 Chevy/GMC C-Series, K-Series Trucks, Jimmy SUM-RP22804
Summit Racing™ Engine Wiring Harness for 1978 Chevy/GMC C-Series, K-Series Trucks, Jimmy SUM-RP22804
Engine Wiring Harness, 1978 Chevy/GMC Truck, C-10, V/8, 305,350,400 C.I, Each
Part Number: SUM-RP22804
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Rear Lamp Harness, 1973-78 Chevy/GMC Truck, Rear, Stepside, With 117.5 in. Wheel Base, Each
Part Number: SUM-RP22821
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, RetroBright, Ground Switched Harness, Easy Installation, Toyota, Land Cruiser, Each
Part Number: HLY-H840
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
1977-1982 Chevy Truck , Rear Lamp Intermediate Harness , Fleetside and Stepside , 131.5 Wheel base , Restoration , Chevrolet , Each
Part Number: SUM-RP20760
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Engine Wiring Harness, OEM Replacement, Reproduction, Chevy, Each
Part Number: SUM-RP21521
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Power Window Wiring Harnesses, Chevrolet, Pontiac, Each
Part Number: AWW-CA67300
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, Tachometer Wiring Harness, OEM Replacement, Restoration, Pontiac,Each
Part Number: SUM-RP21664
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harness, Power Window Wiring Harness, OEM Replacement, Restoration, Chevy, Pontiac, Each
Part Number: SUM-RP21611
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Wiring Harnesses, Fuel Tank Sender Harnesses, Chevrolet, Pontiac, Each
Part Number: AWW-36269
Estimated Ship Date: Mar 5, 2026 if ordered today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Park Lamp Jumper Harness, Park Lamp To Forward Lamp Harness, Restoration, Pontiac, Each
Part Number: SUM-RP20722
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster