BTR Fuel Injector Harness Upgrade Kit for Chevy/GMC (2004.5-05) 6.6L LLY Duramax

The BTR Fuel Injector Harness Upgrade Kit is the proven solution for the notorious injector harness issues found on 2004.5–2005 Chevy and GMC 6.6L LLY Duramax engines. GM’s March 2006 service bulletin (05-06-04-047A/05-06-04-047B) highlights a common failure of the injector wiring on cylinders #2 and #7, which can cause hard starting, limp mode, or even prevent your truck from running.

This kit provides everything needed to repair the affected circuits without replacing the entire engine harness. Each kit includes new wire leads for injectors #2 and #7, OE-style connectors, wire harness brackets, and all necessary hardware for a secure, long-lasting fix. Built with high-temperature, automotive-grade materials, the BTR kit ensures reliable performance under the toughest conditions.

Cross Reference Part Numbers:
GM/AC Delco 98017958, GM98017958; Dorman 904-138, DOR904-138; Diesel Logic 440-6079; Bostec WH01958, 613111356449

Kit Includes:
Injector #7 wire lead, Injector #2 wire lead, Wire harness brackets, Bolts, Connectors

Fitment:
2004.5, 2005 Chevy Silverado, GMC Sierra 2500HD/3500HD 6.6L LLY Duramax