YNF17389 Cam Rocker PVD-2B-40 Hydraulic Pump Cam Rocker for Excavator Swing Mechanism

The YNF17389 cam rocker, made for the PVD-2B-40 hydraulic pump, is a critical component that controls oscillating swing movement and ensures accurate hydraulic timing within the pump’s rotating group. This part plays an essential role in maintaining smooth pressure transition and consistent pump performance during excavation, lifting, and other high-load operations. A worn or deformed cam rocker can cause unstable swing motion, pressure fluctuations, noise, and reduced pump efficiency.

Manufactured from high-strength alloy steel and enhanced through precision CNC machining, the YNF17389 cam rocker offers excellent durability, rigidity, and reduced friction during movement. It withstands severe working conditions, including high pressure, vibration, and continuous heavy-duty cycles.

This cam rocker is widely used in hydraulic pump overhaul services, excavator maintenance centers, and aftermarket machinery parts distribution. Replacing the cam rocker restores accurate hydraulic timing and improves the reliability of the entire pump system.