The Pump Mounted Driver PMD FSD Module Cooler Chrome Upgrade Kit is a high-quality upgrade part for 6.5L Chevrolet GMC engines with the DS4 electronic style fuel injection pump. This kit includes a aluminum chrome heat sink with mounting bolt hardware that is designed to keep the PMD FSD module running at a lower temperature, improving its reliability and performance. The cooler is made of durable materials and is easy to install, while the plug and play 72' relocation harness allows you to move your module to a cooler location . This cooler kit is a cost-effective solution for improving the performance and longevity of your PMD FSD module. With a one year unlimited mileage warranty, you can trust that it's built to last. Upgrade your engine with the Pump Mounted Driver PMD FSD Module Cooler Chrome Upgrade Kit and keep your engine running smoothly.