2017-2019 Silverado & Sierra 2500 & 3500 Duramax L5P Valve Bodies

Your Silverado or Sierra's Duramax L5P V8 may be able to tow heavy and make a whole ton of extra power and torque with even a few performance modifications, but all that strain can cause a bunch of different issues with your Duramax's valve body, which can lead to strange transmission behavior or under-lubrication of your truck's critical components. Tier One's selection of valve bodies for 2017-2019 Silverado and Sierra 2500 and 3500 trucks feature a ton of reliability and power-holding improvements so that your Duramax gets perfect transmission operation, even when you stack on the power or when you're towing heavy. These Duramax performance valve bodies deliver firm, accurate shifting and reliable fluid delivery to all of the critical components of your truck's transmission, no matter how much horsepower and torque your mighty Duramax V8 generates. Also check out our 2017-2019 Duramax L5P Transmission Pans or our 2017-2019 Duramax L5P Built Transmissions!