Seller notes

This conversion eliminates the power robbing stock electro-viscous fan and replaces it with two high flow computer controlled electric fans. Converting to electric fans has been credited with gains ranging from 12-18 RWHP and fuel economy improvements of around 1 MPG. This kit features three relays, which allows for quieter operation. This harness will bring both fans on at half speed for low, and both fans on at full speed for high. Fits 5.3L and 6.0L Trailblazers/Envoy/GMT360. The purchase of ...

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