Fleece Performance 17-19 GM Duramax 2500/3500 Heavy Duty Transmission Cooler lines

For your 2017-2019 Chevrolet Silverado 2500 HD or 3500 HD, or the GMC Sierra equivalent, these transmission cooler lines from Fleece Performance are a solid option for improving your truck's cooling system. These lines are designed to replace the stock rubber hoses, which can degrade over time and potentially lead to leaks or reduced fluid flow. By upgrading to these robust lines, you help ensure consistent transmission fluid temperature, which is crucial for the longevity of your transmission, especially when towing or hauling heavy loads.

Constructed from durable materials, these lines are built to withstand the rigors of heavy-duty use. They are designed to fit right into your truck's existing setup, making the installation process straightforward for someone familiar with working on these trucks. The improved fluid path helps maintain optimal transmission temperatures, reducing the risk of overheating and extending the life of your transmission components. This is a smart upgrade for any owner looking to maintain or enhance their truck's performance under demanding conditions.