XDP HD Rocker Arm Assembly Set for Dodge/Ram (1998.5-18) 5.9L/6.7L Cummins

The XDP HD Rocker Arm Assembly Set is a complete, direct-fit rocker assembly kit for 1998.5-2018 Dodge/Ram 2500 and 3500 with the 5.9L or 6.7L Cummins, and it also fits 2008-2018 Ram 4500 and 5500.

The rockers use a pedestal-style shaft design built around a standard ratio, so factory valve geometry stays the same. Each rocker is made from high-strength alloy steel and runs on silicon bronze bushings. Steel isolators are included.

This set makes sense when the factory rockers or bushings are worn, when you are doing a head job or head stud install and want fresh valvetrain parts, or on a hard-working 24-valve or common rail engine that is seeing more fuel and boost than stock. Stronger rockers help keep valve control consistent under load.

Set valve lash to factory spec after install, and make sure the pushrods are seated properly in the rocker sockets before tightening the hardware. If your rocker arm bolts are damaged or worn, XD629 is the matching bolt set for 2003-2018 engines.

Backed by a 2 Year / Unlimited Mileage warranty, it is a heavy-duty replacement for the factory rocker arms on two generations of Cummins.

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.