Jeep Wrangler Wiring Harnesses & Electrical - OEM-Fit Harnesses & Components

Restore your Jeep Wrangler’s electrical system with precision-engineered wiring harnesses and electrical components designed specifically for your vehicle. Each harness is manufactured to match the original routing, connectors, and circuits of your Jeep Wrangler—restoring the wiring behind the dash, under the hood, and through the body to factory-correct, or factory-improved, condition.

Our Jeep Wrangler electrical lineup includes complete wiring harness sets, battery cables and ground straps, switches, electrical devices, and update/conversion products such as alternator upgrades and electronic ignition conversions. Every component is manufactured and tested to deliver dependable, factory-correct performance, and is organized by your vehicle’s exact year to ensure the harness or component you order is the one built for your Jeep Wrangler—not a close approximation.

Use the Vehicle Selector above to find the correct wiring or electrical component for your Jeep Wrangler, or browse below to explore available options. Whether you’re chasing judging points with a numbers-matching restoration or simply getting your Jeep Wrangler running right, Factory Interiors makes it easy to restore your electrical system with wiring products proudly made in the USA.

1975-1980 Jeep Wrangler Alternator Conversion Harness

simple plug-in conversion allows use of a 1984-99 Delco Remy CS external fan series, internally regulated alternator in place of the original Delco Remy SI series internally regulated alternator

1971-1974 Jeep Wrangler Breakerless-Se Electronic Ignition Conversion

Converts any vehicle with a V8 engine using a Delco distributor (equipped with: points, point-adjustment window on distributor cap, screw-on type rotor, & original-type coil) to solid-state electronic ignition. TOTALLY STOCK APPEARANCE WITH DISTRIBUTOR CAP INSTALLED!!

$225.0
• SALE $224.95
Select Color/Material Options  
1971-1974 Jeep Wrangler Breakerless-Se Electronic Ignition Conversion
1987-1991 Jeep Wrangler Rear Window Defroster Relay/Timer

-O.E.M. made using original GM tooling-,

$173.0
• SALE $172.95
Select Color/Material Options  
1987-1991 Jeep Wrangler Rear Window Defroster Relay/Timer
1974 Jeep Wrangler Headlight Bulb

12V TUNG-SOL 5-3/4" sealed beam bulb, 1 hi beam round 5 3/4" headlight bulb,

(25 Total Products)