2.8 Duramax Colorado/Canyon Transmission Aux Cooler Kit

Accepting backorders - Estimated ship date is Spring 2027 due to supply chain issues.

This kit will add an auxiliary transmission cooler to your existing stock transmission cooler circuit. The kit comes with all the necessary parts and hardware for a complete install. 

• Improved Racing 6L transmission 160F thermostat
• Pre-assembled and pressure tested RaceFlux stainless braided hoses assemblies with RaceFlux hose end fittings from Improved Racing
• Mounting brackets for auxiliary cooler
• Setrab SLM 592mm 10 row cooler
• All necessary hardware
  
  

The thermostat is designed to fully flow at 181F and typically temps will settle around 172-176F under normal driving. 

Compatibility Notice: Please note that this kit is only guaranteed to fit in completely stock vehicles configurations. Vehicles with, but not limited to, aftermarket intercoolers, bumpers, and or winches may cause fitment issues.