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

While your tough 2020-2024 Silverado or Sierra 2500 or 3500 Duramax L5P truck and its Allison 10L1000 transmission are an awesome combination, but it's no secret that these trucks generate a ton of heat, especially when towing extremely heavy loads. Aftermarket 10L1000 transmission coolers are one of the best ways to keep your transmission temperatures under control, even if you're towing heavy or churning out a lot more power from aggressive tuning, big turbos, and other performance upgrades. These transmission coolers are made out of more efficient materials and have larger surface areas than stock to keep your Duramax's Allison 10L1000 transmission cool when you're pushing it hard. Make sure you also take a look at our 2020-2024 Duramax L5P Transmission Pans or our 2020-2024 Duramax L5P Complete Transmissions!