This spring kit is a 4000 RPM governor spring modification kit for the 1994-1998.5 5.9L Dodge Cummins applications. This kit is a combination of custom designed springs and unique seats, designed to allow your truck to enjoy the full benefits of full fueling through 3000 or 4000 RPMs. The result is a truck that is much more responsive and enjoyable to drive at the upper end of the RPM band. We also recommend this kit for anyone with short rear end gears, especially those that demand high towing capacity from their truck.
This product carries a one year warranty. For more information regarding our warranty policy, click here.
( 5.9L 5.9 59 59L 59 L )