1978 Wiring Harnesses

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

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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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47-87 "DELUXE" 20 CIRCUIT WIRING HARN

Part Number: HCT-UWH0018

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Estimated Ship Date: Feb 10, 2026 if ordered today

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

Part Number: AWW-510987

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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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Wiring Harnesses, Factory-Fit, Courtesy Light, Center Roof Mounted Courtesy Light, Chevy, Pontiac, Each

Part Number: AWW-CA86077

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Power Accessory, Fuse Box to Power Feed Extension, Standard Length, Chevy, Pontiac, Each

Part Number: AWW-FB09485

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Estimated Ship Date: Feb 13, 2026 if ordered today

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

Part Number: AWW-510977

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Wiring Harnesses, Factory-Fit, Engine, Glove Box, Extension Harness Plugs Into Switch, Fits Cars with A/C, Standard Length, Chevy, Each

Part Number: AWW-CA01725

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Estimated Ship Date: Feb 11, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Rear Window Defroster, Standard Length, Chevy, Each

Part Number: AWW-CA09479

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Engine, Models with L6 Engine without NB2 Emissions, Chevy, Each

Part Number: AWW-CA85344

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Engine, Models with V8 Engine with NB2 Emissions, Chevy, Each

Part Number: AWW-CA85357

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Air Conditioning, Chevy, Each

Part Number: AWW-CA86693

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Horn, Jumper Wire for Models with Dual Horns, Standard Length, Chevy, Each

Part Number: AWW-CA95434

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Cruise Control, Models Built Before 2/15/1979, Standard Length, Chevy, Each

Part Number: AWW-CA96549

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Estimated Ship Date: Feb 13, 2026 if ordered today

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Wiring Harnesses, Factory-Fit, Air Conditioning, Compressor Harness Extension, Models with V8, Standard Length, Chevy, Each

Part Number: AWW-CA96580

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Estimated Ship Date: Feb 13, 2026 if ordered today

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