2019-2021 Silverado & Sierra 1500 5.3L Transmission Coolers

Your 2019-2021 Silverado or Sierra 1500 5.3L is more than capable of getting out there and doing work on both the street and dirt with a surprising amount of punch that lets it tow heavy, tear around off-road, and dominate the street. However, your 5.3L Silverado or Sierra build does generate a lot of heat when it's out there getting the job done, 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 5.3L Silverado or Sierra build extremely hard. These Silverado & Sierra 1500 transmission coolers are much more efficient at dissipating heat than stock and featured revised designs and larger surface areas. We have both Silverado & Sierra 1500 drop-in transmission coolers and Silverado & Sierra 1500 auxiliary transmission coolers available so that you can find the perfect transmission cooler setup for your truck. Also check out our 2019-2021 Silverado & Sierra 1500 5.3L Thermal Bypass Valves or our 2019-2021 Silverado & Sierra 1500 5.3L Transmission Pans!