Street Performance Pushrods (3/8 Inch) 89-98 Dodge 5.9L Cummins XD314 XDPUpgrade the valvetrain in your 1989 1998 Dodge 5. 9L Diesel 12 Valve with the XDP Street Performance Pushrods (3 8 inch) XD314. When your engine is modified, the factory components are often pushed to their limits from increased cylinder pressures, valve spring pressures, and high engine RPM. Even in mild builds, excessive flex from your factory pushrods can lead to power loss and other valvetrain issues. Just because this flex isn't visible, and your