Brittle insulation, cut wires and three different owners worth of splices. That old harness has been through it.
Why it matters
Bad wiring is how a good build turns into a headache, and the problems love to show up after the paint is done. Fresh wiring with a modern fuse block gives you a clean electrical foundation, and it means you are not chasing a dim headlight or a dead gauge for a month.
What you need to know
Our Universal 22 Circuit Wiring Harness gives you 22 fused circuits, clearly labeled wires, a modern fuse block and extra-length wiring so routing is easier. Common circuits include headlights, brake lights, turn signals, ignition, gauges, radio, horn, wipers, electric fan, fuel pump, air conditioning and power accessories. It is a universal design, so it suits classic truck restorations, LS swaps, hot rods and custom builds.
Here is the part that trips people up on an LS swap: you need two jobs done. The 22 circuit harness wires the truck. The engine needs its own harness, like our High Performance Gen 3 LS Standalone Wiring Harness, which is offered in drive by wire and drive by cable. Before you order, list every circuit you plan to run, including fan, fuel pump, gauges and A/C, so you know the harness covers it. Label as you go and give every ground a clean, bare metal home.
Keep building
- Universal 22 Circuit Wiring Harness
- High Performance Gen 3 LS Standalone Wiring Harness
- Which Wiring Harness Is Best for a Chevy C10 LS Swap?
- C10 LS Swap Wiring Guide
- How Do I Hook Up Gauges and Speedometer on a C10 LS Swap?
- Shop all Electrical & Wiring
Call 805-272-6924 or email contact@dondottasolutions.com if you are not sure which harness your build needs.