Catarpillar 9T-6857 bulldozer main hydraulic piston pump made in China

Catarpillar 9T-6857 bulldozer main hydraulic piston pump Catarpillar 9T-6857 bulldozer main hydraulic piston pumpmade Catarpillar axial variable piston pump group, Eaton PVH series pressure‑compensated main hydraulic pump. Fits CAT D4H, D4H‑XL, D4H‑III, D5M, D5M‑XL track‑type tractor with 3304 /3204 engine. Supplies hydraulic power for dozer blade lift and tilt circuits. SAE flange mounting, spline input shaft. Variable displacement adjusts flow according to working load to