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When it comes to building a reliable
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The Performance Diesel Worx Billet Rocker Arm Bridge Set is precision CNC-machined from billet 4140 chromoly for exceptional strength
Street HD Rocker Arm Trunnion Upgrade Kit | 1998.5 - 2024 Cummins Cummins Hard Parts When it comes to buildingTake your diesel engines reliability and performance to the next level with the Performance Diesel Worx Street HD Rocker Arm Trunnion Set with Polishing Tool the ultimate upgrade for one of the most overlooked components in high performance builds. The factory rocker arm trunnions are designed to handle stock power levels, not the increased loads from performance upgrades. When subjected to higher horsepower, the OEM trunnions can quickly become