Cummins 3081412-20 Cam Follower Roller Pin

The Cummins 3081412-20 cam follower roller pin is a critical valve train component engineered for Cummins heavy-duty diesel engines. Manufactured from case-hardened alloy steel, it provides the precise bearing surface for the cam follower roller assembly, ensuring accurate valve timing and lift under high-load conditions. This pin is designed for direct installation in Cummins N, K, M, and QSK series engines, including the KTA19, QSK19, KTA38, QSK38, KTA50, and QSK50 models. It serves as a direct replacement for OEM part numbers 3081412, 3078181, and 4009479. The component is typically supplied as part of the cam follower kit 3417645 but is available individually for targeted maintenance. Applications span heavy-duty commercial trucks, construction machinery such as hydraulic excavators and mining trucks, marine propulsion systems, and industrial generator sets. Dimensional accuracy and surface finish are controlled to OEM specifications to prevent premature wear of the roller bearing and camshaft lobe.