This genuine Cummins P-Pump drive gear is a used component that has been refinished in-house and will provide full functionality from a quality component. This gear is for 1994-98 Dodge 2500s with Cummins 5.9L engines or other applications within these bounds. Will fit if part number matches exactly, interchange part numbers: 3929031, 3924405. Please refer to the part number for fitment/compatibility. Review all provided photos pre-purchase. Thank you.