Painless Performance is the trusted source for Jeep wiring harness upgrades, delivering OEM-quality reliability for everything from early Jeep CJ restorations to modernized YJ builds.

Whether you’re rewiring a 1940s–1974 CJ, customizing a 1975–1986 CJ, installing a direct-fit harness in a 1976–1986 Jeep CJ, or upgrading the electrical system in an 1987–1991 Jeep YJ, Painless offers the most complete Jeep wiring solutions on the market.

Harness uses factory-correct Jeep color codes, printed circuit designations, and plug-and-play connectors that eliminate guesswork and dramatically simplify installation. From carbureted engines to stand-alone EFI swaps, from off-road accessories to full frame-off restorations, Painless harnesses provide clean power distribution, modern fuse protection, and dependable performance on any trail.