1976-1986 Jeep CJ Direct-Fit Wiring Harnesses
The 1976–1986 Jeep CJ is one of the most iconic off-road vehicles ever built but its aging factory wiring is notorious for brittle insulation, poor grounding, and hard-to-trace routing. The Painless 10150 Direct Fit Harness is the ultimate solution for rebuilding your CJ’s electrical system the right way, delivering modern reliability with OEM-style fitment and plug-and-play installation.
Designed exclusively for CJ5, CJ7, and CJ8 Scrambler models, this 21-circuit wiring system replaces every original wire with new, color-coded, clearly labeled OEM-style wiring. Every major factory connector is already pre-terminated, every section is cut to exact CJ length, and every option from tachometers to clocks, from automatic columns to manual transmission pigtails has been engineered into the harness.
If you want the most complete, most accurate, and most installer-friendly wiring kit ever offered for a late-model CJ, this is it.
Why the Painless 10150 Is the New Gold Standard for Jeep CJ Wiring
True Direct Fit for 1976–1986 CJ Models
Pre-terminated connectors for ignition switch, turn signal switch, tail lights, gauge cluster, under-hood light, alternator, transmission switches, and more. No cutting, no splicing, no adapting.
Fully Integrated Ground System
Modern ground paths run directly to the battery — eliminating common CJ grounding issues and making this kit ideal for fiberglass-tub Jeeps.
High-Output Charging System Ready
Includes 6-gauge charge wire and an inline 100-amp fuse, supporting high-output alternators without requiring additional modifications.
Expanded Factory-Option Support
Unlike earlier harnesses, the 10150 includes direct connections for:
Factory V6 & V8 tachometers
Factory clocks & backlighting
Automatic column neutral safety & reverse switches
Under-hood service light
Manual transmission switches (NS, reverse, 4WD indicator)
Complete Rear Lighting Solution
Factory-style molded tail-light connectors are pre-installed for true plug-and-play use. Weather-Pack connectors are included for aftermarket light setups.
Built-In Trailer Connector
A pre-spliced trailer plug provides tail, brake, turn, and ground circuits — plus the mating connector for a clean installation.
Factory-Style Parts Kit Included
OEM-style connectors, terminals, and attachment clips match the ¼″ factory holes for authentic appearance and secure routing.
Bulbs & Accessories Included
Every front and rear light bulb — including marker, turn, tail, and gauge cluster bulbs — is included, along with dielectric grease to protect against corrosion.
All-New 140+ Page Color Manual
The most detailed CJ instruction book on the market, packed with color photos, diagrams, schematics, and step-by-step installation guides.
Built for Every 1976–1986 CJ Application
Whether you’re restoring a factory-original CJ5, wiring an LS-swapped CJ7, installing a fiberglass tub, or building a Scrambler for trail duty, the Painless 10150 harness delivers unmatched durability, clarity, and ease of installation.
It’s the most complete late-CJ wiring system ever engineered — because your Jeep deserves wiring that’s simple, reliable, Painless.