Silverado & Sierra

Upfitter switch harnesses and wiring solutions for 2022+ Chevrolet Silverado and GMC Sierra trucks. Built around the factory 9L7 aux switch provisions, our harnesses pull your upfitter circuits out of the cab and into the engine bay — terminated in sealed Weather Pack connectors so your accessories connect right where they live. Color-matched US-made wire, amp-rated labels, and clean, serviceable connections in every build.