2020-2024 Silverado & Sierra 2500 & 3500 6.6L Duramax L5P Transmission Coolers

While your 2020-2024 Silverado or Sierra Duramax L5P and its Allison 10L1000 are an awesome combination, it's no secret that these trucks generate a ton of heat, especially when towing heavy loads. Aftermarket 10L1000 transmission coolers are one of the best ways to keep your transmission temperatures under control, preserving the life of your fluid and clutches. These coolers are made out of more efficient materials and have larger surface areas than stock, ensuring your transmission stays cool even if you're towing heavy up steep grades or churning out massive power from aggressive tuning and turbo upgrades. 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 2020-2024 Duramax L5P 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 2020-2024 Duramax L5P Torque Converters. Sometimes overheating is caused by inefficient fluid routing or valve body issues, but you can improve fluid flow and reduce operating temperatures by installing one of our 2020-2025 Duramax 10L1000 Valve Bodies. Another great way to help manage heat is by increasing your overall fluid volume, so add several quarts of extra capacity and help dissipate heat by adding a deep pan from our section of 2020-2024 Duramax L5P Transmission Parts.