Transmission Cooler Bracket Kit - Hayden 679 / 689

It looks like the 679/689 are the same in size as the 699 with the exception being the height and length are switched.

When adding a cooler to the 2019 - 2021 years, you add the OEM thermostat. The thermostat gives you the temperature regulation as well as the inlet/outlet barbs.

The Hayden 699 has a built in thermostat essentially. This would be redundant in addition to the OEM unit that gets installed.

The Hayden 699 is rated the exact same as the 679 and 689 for towing capacity (10,000lbs) and GVWR (22,000lbd). I’m always open to thoughts and improvements, but I see no difference expect the extra thermostat in the 699.

 

Initial post updated with a new bracket for the 2011 - 2018 Tundra and 2011 - 2022 Sequoia with 5.7L.

Also, I have two brackets left that use the 679 Hayden cooler only for the 2019 - 201 Tundra. If you want to use a

$59 Hayden 679 Universal 11” Rapid-Cool Add-On Transmission Cooler to Enhance Cooling (not for direct replacement of the factory unit)

Hayden 679 cooler I can offer a discount on the last two kits. The new redesigned bracket is a multi-fit and fits both the Hayden 679 and 689 cooler.