CAT 330GC Final Drive Travel Motor Assembly 538-5278 – Remanufactured Gearbox Only

Note: The application information provided is for reference only. Please confirm the part number and compare it with the old component before purchasing. If you have any questions, please feel free to contact us.
It is worth choosing a product that features stable performance, high reliability, easy installation, and quick response.

1. Key Features & Benefits

• Direct‑fit remanufactured travel gearbox – OEM part number 538‑5278, designed for CAT 330GC, 330, 330F, 323F SA and 538 excavators. This is the complete planetary gearbox section (DRIVE GP‑FINAL) without the hydraulic motor, allowing you to reuse your existing travel motor or install a new one separately.

• Restores factory driveline performance – A worn final drive causes sluggish track response, uneven travel, strange grinding noises, and eventually complete lock‑up. Remanufacturing resets the gearbox to like‑new condition, eliminating these issues.

• Eliminates common failure modes before they happen – The most frequent killers of 330GC final drives are failed floating face seals, contaminated GL‑5 gear oil, and worn planetary bearings. Our reman process replaces every seal, bearing, and worn gear – so you are not buying someone else’s old problem.

• Two‑speed planetary reduction – Fully retains the original two‑speed shift capability. When the operator selects high‑speed travel, the gearbox responds instantly; low‑speed high‑torque mode for tough digging and climbing works exactly as new.

• Premium floating seals installed – New high‑quality floating seals prevent oil leakage between the motor and gearbox sections, keeping debris out and gear oil in. This single upgrade addresses the most common source of premature final drive failure on Cat excavators.

• Dyno‑tested before dispatch – Each reman unit is run on a hydraulic test stand under load, verifying smooth gear engagement, correct torque output, and no internal leakage. You do not guess – we test first.

• Visual approval before shipping – We send you detailed photos of your final drive (mounting flange, splines, port threads, general condition). You say “ship” – we pack. No surprises.

• Heavy‑duty wooden case packaging – Fumigation‑free, internally braced, suitable for sea or air freight. Monthly capacity 300 units.

2. Applications

The CAT 330GC final drive travel gearbox is a critical undercarriage component used across a wide range of heavy industries. When the original unit wears out or fails, a remanufactured gearbox restores full machine mobility at a fraction of OEM cost.

• Mining and quarry operations – 30‑ton excavators working in open‑pit mines and aggregate quarries face extreme shock loads, abrasive dust, and 24/7 shift cycles. A final drive failure in a remote pit can idle an entire production face. Remanufactured units with new bearings and seals deliver the same reliability as new without the long OEM lead time.

• Heavy construction & earthmoving – Highway projects, dam construction, pipeline trenching, and large‑scale site preparation all demand consistent travel performance. A failed gearbox leaves a 30‑ton excavator immobile in the middle of a job site – towing costs alone often exceed the price of a reman unit.

• Demolition and scrap recycling – Vibrations, sharp metal debris, and repeated hard impacts are routine. The planetary gearing inside a remanufactured final drive absorbs these extreme shocks without internal damage, thanks to new case‑hardened gears and fresh bearings.

• Equipment rental fleets – Renters are hard on undercarriage components. A final drive failure mid‑rental damages customer relationships and generates negative reviews. A reman unit provides a fresh, predictable driveline at a cost that makes proactive replacement economically smart.

• Forestry and land clearing – Steep slopes, soft ground, and hidden obstacles are routine. A reliable final drive with smooth two‑speed shifting prevents machine‑stranding failures far from repair support. New floating seals keep water and debris out of the gearbox.

3. Why Remanufactured Beats New and Used – A Simple Comparison

Instead of a table, consider three real scenarios.

Scenario A – Buying new OEM. You pay $8,000–11,000 for a factory‑fresh final drive gearbox. It will last 8,000–10,000 hours. You have zero uncertainty. But you also pay a premium that many 330GC owners, especially those with older or high‑hour machines, cannot justify.

Scenario B – Buying a used “as‑is” unit from a breaker yard. You pay $1,500–3,000. It looks clean on the outside. But the used unit has the same hours, the same floating seal wear, the same bearing fatigue, and the same degraded gear oil as the one you just removed. You install it. Three months later, it starts leaking. Six months later, it seizes. You pay for two tows, double the labour, and lost production twice. That “cheap” used unit ends up costing more than a reman.

Scenario C – Our remanufactured 538‑5278. You pay around 40–50% of new OEM price. The gearbox is stripped, cleaned, crack‑inspected. Every bearing, every seal, every O‑ring is new. Worn gears are replaced. The housing is flushed and filled with fresh GL‑5 gear oil. It is dyno‑tested before it ever sees your shop. You install it once. You get new‑unit reliability at half the price. No guesswork. No second towing bill.

The bottom line: Used is a gamble. New is safe but expensive. Remanufactured is the smart middle ground – proven on thousands of excavators worldwide.

4. Why Choose Hongtengda Parts

At Hongtengda Parts, we have been supplying and remanufacturing undercarriage components for over 25 years. We know that a final drive failure is not just a parts problem – it is a production‑stopping event. Our approach focuses on what matters to you: reliability, transparency, and speed.

• 25+ years of industry experience – Founded in 2001, we have remanufactured final drives for Caterpillar, Komatsu, Hitachi, Kobelco, Hyundai, SANY and XCMG. We are not a middleman – we have our own reman workshop.

• 90% stock availability – CAT 330GC final drive gearboxes are in stock in our Guangzhou warehouse. No waiting for cores to arrive from overseas. No backorders.

• 24‑hour shipment – From our hub to your forwarder in 1 day; international orders shipped within 24 hours via sea, air, or express courier.

• Pre‑shipment visual verification – You receive detailed photos of your actual unit before it is packed. You approve the condition – we never ship blind.

• One‑stop sourcing – We also supply hydraulic travel motors, swing motors, pumps, control valves, track rollers, idlers, sprockets, and full undercarriage kits.

• Technical support – Our workshop team can confirm fitment from your machine serial number, provide installation guidance, and help troubleshoot any issues after delivery.

Send us your CAT 330GC machine serial number – we will verify compatibility and provide a quote within 24 hours.

Warranty note: Warranty period is 3 to 6 months depending on product details. We do not provide warranty service for original used or remanufactured parts. Our value is delivered up front: careful remanufacturing, thorough testing, and pre‑shipment visual approval. For customers who require a warranty‑covered option, we can quote new aftermarket units – please ask our sales team.

Your 330GC’s final drive is the last thing between the engine and the ground. When it fails, the machine stops. A remanufactured 538‑5278 gets you back to work – not for weeks, but for years.