PCMofNC Three Relay Fan Harness for Trailblazer/GMT 360

Electric fan conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans. This conversion has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG.

This kit includes the wiring harness, hardware and brackets to install LS1 V8 fans.  A slightly, modified version is available as part of our SPAL fan kit, which includes two powerful, high quality SPAL fans and a custom made aluminum shroud.  Designed as a direct fit for the Trailblazer and powdercoated black for the cleanest possible install. 

* Fan assembly sold separately.

Optional manual fan switch can be installed inline with the fan harness to allow operation of fans with or without the truck running to bleed off excessive heat while at the track! Manual fan switch offers both LOW and HIGH operation.