
These springs offer bolt on performance enhancements to your 5.9 or 6.7 cummins. Our USA Made springs are built from the highest quality material, sourced from an OE supplier. Kit includes 24 springs, 24 retainers, 48 valve locks and 24 valve stem seals. This kit is perfect for high demand applications such as towing, big boost, high performance street, or competition applications.