XDP HD Rocker Arm Assembly Set 98.5-18 Dodge Ram 5.9L/6.7L Cummins

Upgrade the valvetrain in your Dodge Ram 5.9L or 6.7L Cummins with the XDP HD Rocker Arm Assembly Set. Designed as a complete direct-fit replacement, the XDP XD636 features high-strength alloy-steel rocker arms, a pedestal-style shaft design, and a stock rocker ratio to maintain proper factory valve geometry. The rocker arms are a critical part of the Cummins valvetrain, transferring movement from the pushrods to the valves. Worn rocker arms, shafts, or bushings can contribute to valvetrain noise, inconsistent operation, and premature wear. The XDP HD Rocker Arm Assembly provides a durable replacement designed to deliver consistent operation under demanding diesel engine conditions. High-Strength Rocker Arm Construction Each rocker arm is manufactured from high-strength alloy steel for improved durability and long-term reliability. The assembly uses a silicon-bronze bushing designed to provide smooth rocker movement and contribute to long-term valvetrain stability. Stock Rocker Ratio and Factory Valve Geometry The XD636 uses a standard rocker ratio to maintain factory valve geometry. Its pedestal-style shaft rocker system provides a direct-fit configuration that is well suited for replacing worn or damaged factory components without changing the engine's intended valvetrain geometry. Complete Direct-Fit Assembly The XDP HD Rocker Arm Assembly Set includes the components necessary to replace the rocker arm assemblies as a complete unit. Steel isolators are included along with the rocker arms, shafts, and silicon-bronze bushings, providing a convenient solution when rebuilding or servicing the Cummins valvetrain.