2003-Up Truck PCM

EFI Connection engine wire harnesses for 2003-Up Truck PCMs are compatible with all Gen III 24x LS-Series engines. The variety of 2003-Up Truck PCMs include support for cable throttle (some LS-Series Van engines) and electronic throttle.

Our stand-alone engine wire harnesses often exceed other aftermarket engine harnesses because of our attention to quality and detail: 

  • OE quality TXL insulated wire for great flexibility, abrasion resistance, and continuous use in temperatures up to 257°F.
  • OE original connectors, terminals, and cable seals. No aftermarket knock-off components.
  • Production quality connector terminal crimps using tooling by Rennsteig Tools.

2003 Up Truck Harness Category