Select Page


Upgrade Your Transmission Cooling

Thermal Cooler Bypass Valve with Install Kit to suit Ranger and BT-50 6 Speed Autos.

Adding a thermal bypass valve allows your cooler to operate at 100% capacity all the time. This is beneficial when towing and touring, particularly in warmer climates as we have in Australia and New Zealand.

Kit includes:

  • Thermal Cooler Bypass Valve
  • Case Sleeve
  • Pan Gasket
  • Oil Filter


Customer Reviews

Based on 8 reviews
Jackie Hislop

Awesome big difference compare to stock valve

Thanks Jackie! In terms of bang-for-buck it's one of the best value upgrades you can do!

Eric Cremers
Thermal by-pass kit

Had previously fitted a twin trans cooler to my PX2, wanted to see the affect it would make...minimal by itself so I fitted the thermal by-pass valve kit and a oil is crazy the difference..20 degree's cooler..mind blown..should have done it well before now.
Absolutely recommend doing it if you own a Ranger or BT50.

The thermal bypass kit is a great little product. You can get some fantastic results at a very low cost. Great to hear you've noticed a big difference in temps with the kit.

Thermal bypass

excellent product everyone should put one on

Thanks for that Gary. The Thermal Bypass is a simple and cheap product that can make a big difference.

Shane Berry
BT50 Trans Cooler & Bypass Valve

Awesome up grade if you do any sort of towing.
Keeps trans temp low and and smother gear changes under load.
It’s worth every cent.

Thanks Shane, we appreciate the 5-star review. Good to hear the kit is doing good things for your trans temps.

Mike Coleman
Very impressed

Impressed with the service and quick despatch of order

Thanks for the feedback. Much appreciated.