LQ15VO0003F1 final drive for Kobelco SK250-8 midi excavator
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Product Overview
The Kobelco SK250‑8 is the quiet achiever on a mid‑size earthworks crew — a 25‑ton machine known for fuel efficiency and smooth hydraulics, chosen for roadwork, bridge work and general excavation where running costs matter. Under each track frame, the travel motor with reduction, reference LQ15VO0003F1, takes high‑pressure oil from the main pump and turns it into the slow, steady pull that moves the machine between cut and stockpile.
On a worked ‑series Kobelco, the drive gives itself away gradually. The operator notices the two tracks no longer quite match on a long straight, that one track warms after a shorter trundle than it should, and that a low whine creeps into the circuit the moment the bucket loads up. Most crews nurse it for another week — but by then the piston group and reduction gears are already shedding swarf into the travel oil. This OEM‑grade unit is built as one sealed, bench‑tested motor‑and‑reducer assembly, so the worn drive lifts out whole and the replacement drops straight into the original mounting.
Core Advantages
1. OEM‑grade clearances for even track pull
The piston group, cylinder block and valve plate are finished to original tolerances, so pressure does not leak internally. Both tracks pull in step — no drift, no lazy side, no hesitation when the bucket crowds the trench.
2. Hardened gears built for roadwork cycles
Roadwork means repeated reversing, ramp climbs and curb pulls. Case‑hardened planetary teeth share the load across several surfaces, and controlled backlash keeps the reducer quiet as hours pile up.
3. Sealed for dust, mud and pressure washing
Infrastructure sites throw up dust, slurry and washdown water. Fresh shaft and housing seals keep that grit out of the lube — the protection that decides whether the drive reaches its first overhaul.
4. One bolt‑in unit, no on‑floor assembly
Motor and reduction arrive mated and bench‑checked. The fitter swaps the whole drive rather than matching loose parts, which is how a parked 25‑ton machine moves again in a day.
5. OEM‑spec build without the dealer exchange price
Renewing the drive to original tolerances restores the SK250‑8's mobility at a fraction of a Kobelco dealer exchange unit, with sample and bulk supply for workshops running several of these machines.
Manufacturing & Quality Control
Parts are machined to Kobelco print, heat‑treated at wear points, and assembled in a clean shop. Each finished drive runs on a hydraulic stand while torque, leakage and noise are logged; units outside spec are reworked before packing. The internals are fogged with preservation oil, ports are plugged, and the assembly ships on shock‑absorbing dunnage.
Frequently Asked Questions
Q1: What's the lead time on a unit like this?
A: Stocked units usually dispatch within 1–2 working days. If we need to build to order, it runs 1–2 weeks — tell us how urgent the machine is and we will prioritise.
Q2: Does the drive come pre‑filled with oil?
A: It ships drained and preservation‑coated. Fill the housing with the correct Kobelco travel gear oil to the mark before running, and bleed the motor as per the service manual.
Q3: Can I send the old drive in first for exchange?
A: We sell new aftermarket units outright rather than on an exchange basis. You keep the old one for repair or scrap — no core to send back, no waiting on credit.
Q4: How does this compare to a genuine Kobelco unit?
A: It is built to the same interface and internal tolerances as a replacement, but at aftermarket pricing. It will not carry a Kobelco badge, and it does not require a dealer network to fit or service.
Q5: What if the part number on my machine is different?
A: Send a photo of the old drive's ID plate and the machine serial number. We cross‑reference against our catalogue and tell you honestly whether it matches, even if that means we cannot supply it.