2019-2021 Silverado & Sierra 1500 5.3L Transmission Coolers

Your 2019-2021 Silverado or Sierra 1500 5.3L is more than capable of doing work, but it generates a lot of heat when towing, which isn't great for its transmission. Tier One's selection of 2019-2021 Silverado or Sierra 1500 5.3L transmission coolers will keep your truck's transmission temperatures under control, even if you're pushing your build extremely hard. These coolers are much more efficient at dissipating heat than stock and feature revised designs and larger surface areas. We have both drop-in replacement coolers and auxiliary units available so that you can find the perfect setup for your truck. If your truck has already suffered from heat damage and is slipping in gear, a cooler alone won't fix the internal clutches, so you may need to look at replacing the unit with one of our 2019-2021 Silverado & Sierra 1500 5.3L Complete Transmissions. An unlocking torque converter creates significant friction and heat, so to reduce heat generation at the source while improving towing performance, consider upgrading to one of our 2019-2021 Silverado & Sierra 1500 5.3L Torque Converters. You can further improve fluid flow and shift quality by installing one of our 2019-2021 Silverado & Sierra 1500 5.3L Valve Bodies. Another great way to help manage heat is by increasing your overall fluid volume with a deep pan from our section of 2019-2021 Silverado & Sierra 1500 5.3L Transmission Parts.