Part Number: 550‑4341, pump model K7V180DTP.
This is a brand‑new aftermarket hydraulic main pump assembly, designed as direct‑fit replacement for Caterpillar 336GC, 340GC and 345GC excavators.
As the core power unit of the excavator hydraulic system, this piston main pump delivers stable high‑pressure hydraulic flow to support boom, arm, bucket and travel operations. Built with heavy‑duty cast‑iron housing and precision‑machined piston & valve components, it features excellent volumetric efficiency and low internal leakage. Strict OEM‑standard port positions and mounting dimensions enable direct installation without drilling or modification.
Designed for harsh earth‑moving, mining and construction site conditions, it is a cost‑effective aftermarket alternative to original OEM parts, ideal for repair workshops, fleet maintenance and resellers.
✅ Compatible Models: Caterpillar 336GC, 340GC, 345GC
✅ Key Features: • Direct replacement for OEM part number 550‑4341 • High‑pressure variable‑displacement piston pump • Stable hydraulic output, low internal oil leakage • OEM‑compliant mounting & port layout, no modification required • Heavy‑duty construction for long‑time continuous working • New aftermarket spare part for excavator overhaul & repair
✅ Packaging & Service: Packed in solid wooden case with shock‑proof protection, suitable for sea freight and air shipment. MOQ: 1 piece. Bulk order is welcome for repair shops and distributors.
