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1978 Wiring Harnesses

Individual Parts

Results 1 - 25 of 93

Wiring Harnesses, 27-Circuit Classic-Plus Customizable GM Truck Chassis Harnesses, ATO/ATC Fuse Style, Front Fuse Block, Chevy, GMC, Kit

Part Number: PRF-20205

4.78 out of 5 stars ( 36 )

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Wiring Harness, 21-Circuit, Direct Fit, Jeep, CJ, Kit

Part Number: PRF-10150

4.89 out of 5 stars ( 27 )

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Wiring Harness, Classic Update Series, 18 Circuit, Front Mount Fuse Block, Standard Length, Chevy, GMC, Kit

Part Number: AWW-510347

4.94 out of 5 stars ( 18 )

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Wiring Harnesses, Classic Update Series, 18 Circuits, Standard Length, Front Fuse Block, International, Kit

Part Number: AWW-510838

5.0 out of 5 stars ( 1 )

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Wiring Harness, 26-circuit, Column Ignition Key Location, Standard Harness Length, Chevy, Kit

Part Number: PRF-20114

4.45 out of 5 stars ( 11 )

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Wiring Harness, Classic Update Series, Front Mount Fuse Block, Standard Length, Jeep, Kit

Part Number: AWW-510573

3.25 out of 5 stars ( 4 )

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Wiring Harness, Classic Update, 22 Circuit, Column Ignition Location, Extra-Long, Front Fuse Location, Kit

Part Number: AWW-510926

Not Yet Reviewed

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Wiring Harness, Classic Update Series, Front Mount Fuse Block, Standard Length, Pontiac, Firebird, Kit

Part Number: AWW-510683

3.0 out of 5 stars ( 2 )

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Wiring Harness, Classic Update Series, Front Mount Fuse Block, Standard Length, Chevy, Camaro, Kit

Part Number: AWW-510581

4.5 out of 5 stars ( 6 )

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1973-1982 Chevy Truck, Rear Lamp Harness, Rear, Fleetside, Restoration, Chevrolet, Each

Part Number: SUM-RP20755

Not Yet Reviewed

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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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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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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

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

Part Number: SUM-RP21521

Not Yet Reviewed

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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

Not Yet Reviewed

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

Part Number: SUM-RP21505

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47-87 "DELUXE" 20 CIRCUIT WIRING HARN

Part Number: HCT-UWH0018

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Wiring Harnesses, Dodge/Chrysler Powered EXPRESS Wiring Systems, 18-circuit, ATM Fuse Style, Front Fuse Block, Standard Harness Length, Dodge, Kit

Part Number: RFW-XP693

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

Part Number: SUM-RP20789

Not Yet Reviewed

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Wiring Harness, Classic Update, 24 Circuit, Dash Ignitions, Extra Long, Front Fuse, Buick, Kit

Part Number: AWW-510987

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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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Wiring Harness, A/C Harness, Air Conditioning Harness, OEM Replacement, Restoration, With Heater Wiring, Pontiac, V8, Each

Part Number: SUM-RP23092

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

Part Number: HLY-H840

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