Greg from Wholesale Automatics demonstrates how to install a transmission oil cooler into a Holden Colorado 7, RG or Trailblazer

Do I need a transmission cooler? Those who tow, carry any sort of load or go offroad should definitely run a dedicated transmission cooler. As the largest 4WD auto transmission specialist in the southern hemisphere we know experientially that heat causes wear, reduces performance and causes costly breakdowns.

At Wholesale Automatics we have model specific DIY transmission oil cooler kits to suit your needs.

Wholesale Automatic Transmissions - https://automatictransmission.com.au/