YNF17465 Piston AP2D36 Hydraulic Pump Piston for Excavator Main Pump Rebuild

The YNF17465 piston, manufactured for the AP2D36 hydraulic pump, is a critical component within the rotating group that converts hydraulic pressure into mechanical motion. This function directly impacts the pump’s ability to deliver stable pressure, smooth oil flow, and consistent performance across various excavation operations. When pistons become worn, scored, or fatigued, the hydraulic pump may suffer from pressure loss, overheating, internal leakage, weak responsiveness, and reduced overall efficiency.

Produced using heat-treated alloy steel and precision CNC grinding technology, the YNF17465 piston delivers excellent hardness, dimensional stability, and low-friction sliding characteristics. These qualities ensure reliable sealing, improved hydraulic performance, and extended pump service life—even under heavy-duty, long-hour working environments.

Widely used by hydraulic rebuild shops, excavator mechanics, and aftermarket parts distributors, this piston is essential for complete pump overhaul projects and performance restoration.