ناقل الحركة النهائي LQ15V00004F1 لـ حفارة متوسطة الحجم Kobelco SK220-4

SK220‑4 Final Drive for Excavator spare parts LQ15V00004F1 Axial Piston Motor OEM

Product Overview

When a Kobelco SK220‑4 crawls to a stop, the engine is almost never the reason — the final drive is. The axial piston motor and planetary reducer under each track, carrying reference LQ15V00004F1, is the component that turns hydraulic pressure into the low‑speed, high‑torque rotation pulling this 22‑ton machine across site. Hours of ramp climbs, soft‑ground pushes and repeated reversing wear it down in quiet stages first: the tracks stop quite matching, the machine drifts on level ground, the drive housing warms faster than its opposite, and a note from inside the track frame gradually deepens. Ignore those signs and a track will eventually hesitate rather than pull — by then the piston group and reduction gears are already scoring against each other. This OEM‑grade drive is built as one matched motor‑and‑reducer assembly, so the worn unit can be unbolted and the new one fitted without hunting for separate parts.

Core Advantages

1. Pressure‑tight motor internals for even track pull
The piston, cylinder block and valve plate are finished to tight clearances, so hydraulic pressure does not leak away inside the unit. Both tracks then push in step — no drifting, no slow side, no hesitation the moment the bucket loads up.

2. Hardened gears built for decades‑proven duty
The planetary gear set follows a long‑proven Kobelco layout, with case‑hardened teeth that share the drive load evenly. Meshing stays smooth and quiet, and wear from years of track push and ramp climbing slows right down.

3. Sealed for long hours on mixed site conditions
Older machines work through long shifts in quarry dust, mud and standing water. Fitted output‑shaft and housing seals keep grit out of the motor and reducer — the protection that decides whether the drive lasts its service life.

4. One tested, matched unit for a clean swap
Motor and reducer arrive pre‑assembled and bench‑checked, so the fitter removes the old drive and bolts on the new one without sourcing separate components. No mid‑job mismatches, no second visit to chase a leak.

5. OEM‑spec quality at a practical repair cost
An original Kobelco final drive exchange carries a premium price. This OEM‑grade unit matches the original fit and performance, giving workshops and fleet owners a dependable option with sample and bulk supply available.

Manufacturing & Quality Control

The OEM‑grade route follows controlled specifications: material certification, precision machining of housings and gears, case hardening of wear surfaces and clean assembly. Each completed drive runs on a test rig to verify output torque, internal leakage and running noise before release, and only passing units are packed. Full preservation coating, moisture sealing and shock‑absorbing export casing protect the assembly during transport.

Frequently Asked Questions

Q1: How do I confirm LQ15V00004F1 matches my SK220‑4?
A: Compare the reference on your existing drive and share your machine serial number. Kobelco build variants can differ, so we verify before dispatch.

Q2: Is this the complete motor and reducer?
A: Yes — the listing covers the full axial piston motor with planetary reducer as one assembly, ready to bolt on. Separate components can be checked on request.

Q3: What faults point to drive wear?
A: Uneven track speed, drifting on flat ground, a hot or noisy track motor and tracks that hesitate under load. Inspect early, before debris spreads through the travel circuit.

Q4: What is the warranty position?
A: Manufacturing and material defects are covered. Damage from contaminated oil, debris in the motor, track obstruction, overload or incorrect installation is excluded; follow the Kobelco service manual for fitting and bleeding.