XDP XD385 ROCKER ARM SHAFTS 2001-2019 GM DURAMAX 6.6L LB7/LLY/LBZ/LMM/LML/L5P

The XDP XD385 Rocker Arm Shafts are an essential upgrade for owners of 2001-2019 GM Duramax 6.6L LB7/LLY/LBZ/LMM/LML/L5P engines seeking improved performance and durability. Engineered to address common oiling issues present in these engines, the XDP Rocker Arm Shafts are a critical component for maintaining optimal valvetrain health.

One of the primary culprits of premature valvetrain wear and failures in these Duramax engines is the lack of lubrication to the rocker arm when the valve opens. To combat this issue, the XDP Shafts are specially designed with revised oil grooves that precisely align with the oil hole in the bushing, ensuring a consistent and reliable oil supply to the rocker arm.

Crafted from hardened 4130 chromoly steel, these shafts are built to withstand extreme conditions and provide long-lasting durability. The CNC machined construction and .250-inch wall thickness further contribute to the overall strength and reliability of the XDP Rocker Arm Shafts.

In addition to their performance-enhancing features, these rocker arm shafts come equipped with threaded pipe plugs at each end, allowing for easy cleaning, inspection, and hot tanking during engine rebuilds. With the XDP XD385 Rocker Arm Shafts, you can trust that your GM Duramax engine will receive the lubrication and support it needs to function optimally and withstand the demands of high-performance applications.

Upgrade your engine's valvetrain with the XDP XD385 Rocker Arm Shafts and experience improved reliability and longevity for your GM Duramax 6.6L engine.