Nabtesco (Teijin Seiki) GM Series Travel Motor Parts (GM03-GM35)

HYLINK supplies precision-engineered Nabtesco (Teijin Seiki) GM series hydraulic travel motor final drive parts and complete rotary group repair kits for mini and medium crawler excavators. Every component is manufactured to original specifications, 100% interchangeable with genuine Nabtesco parts, and fully tested before shipment — providing a reliable, cost-effective replacement solution for repair shops, distributors, and fleet maintenance teams worldwide.

Product Overview

The Nabtesco GM series (including GM03, GM05, GM06, GM07, GM08, GM09, GM10, GM17, GM18, GM21, and GM35) is the primary OEM travel motor and final drive assembly utilized across mini and compact hydraulic crawler excavators. Operating directly within track drive gearboxes under high pressure, heavy shock loads, and harsh ground conditions, internal axial piston motor components experience severe friction over time. This wear leads to loss of tracking power, erratic travel speed, hydraulic fluid cross-leakage, or excessive noise during machine operation.

HYLINK manufactures high-precision complete rotary groups and individual replacement components across all Nabtesco GM frame sizes. Engineered from high-strength forged steel and wear-resistant bronze alloys, each component undergoes precision CNC machining and CMM micron-level inspection. This allows technicians and fleet managers to rebuild the internal hydraulic rotary group without replacing the entire high-cost final drive housing, significantly reducing overhaul expenses and minimizing machine downtime.

Available Components

Below is the standard component list for Nabtesco GM series hydraulic travel motors (GM03 through GM35). Individual spare parts and complete overhaul repair kits are both available:

Quality Assurance & Manufacturing

Every HYLINK pump and replacement part undergoes strict quality control before shipment:

l Dimensional accuracy — checked with high-precision CMM (Coordinate Measuring Machines) to guarantee an exact fit with original pump housings.

l Material metallurgy — manufactured from premium forged steel and high-wear-resistant alloys to prevent premature fatigue.

l 100% performance test — every complete pump assembly is tested on our dynamic hydraulic test rig for pressure, flow rate and efficiency under full working load.

Packing, Shipping & Warranty

l Packaging — anti-rust protective film + heavy-duty foam cushioning + standard export fumigation-free wooden case (reinforced carton for small spare parts).

l Shipping — express courier (DHL / FedEx) for urgent repair orders; sea or air cargo for bulk orders.

l Warranty — 6 months quality assurance against manufacturing and material defects from the delivery date. In the event of a confirmed quality defect, HYLINK provides hassle-free replacement.

FAQ

Q: Are your SBS pump parts interchangeable with genuine Caterpillar parts?

A: Yes. All parts are produced to original specifications and dimensions and are 100% interchangeable — no modification is required during installation.

Q: What is the minimum order quantity?

A: 1 piece. We supply both individual components and complete rotary group / repair kits.

Q: How fast can you ship?

A: In-stock items are dispatched within 1–3 days; standard production orders take 5–8 days. Express and sea/air freight are both available.

Q: How do I confirm the correct part for my machine?

A: Send us your excavator model, pump model (SBS80 / SBS120 / SBS140) and the part name or photo — our technical team will confirm the correct item before you order.

Q: What warranty do you offer?

A: 6 months against manufacturing and material defects, with replacement support for confirmed quality issues.