Excavator Pump Drive Gearboxes

Excavator Pump Drive Gearboxes – Hitachi, John Deere, Caterpillar

VI Equipment has a large inventory of Excavator Parts, including John Deer Pump Drive Gearboxes, Hitachi Pump Drive Gearboxes, Caterpillar Pump Drive Gearboxes and more ready to ship worldwide. We offer used, rebuilt and new pump drive gearboxes for excavators. Choose from one our pump drive gearboxes below or contact us for all your excavator part needs!

We Ship Excavator Pump Drive Gearboxes to the USA, Canada, and Worldwide

No matter where your project takes you, VI Equipment can keep you moving. We offer global shipping on all our excavator pump drive gearboxes, ensuring you get the parts you need quickly and efficiently.

Why Shop VI Equipment for Your Excavator Pump Drive Gearboxes

There are many reasons to choose VI Equipment for your excavator pump drive gearboxes. We offer exceptional value, unmatched selection, and reliable performance to keep your projects on track. Discover the VI Equipment difference and experience the benefits firsthand.

Excavator Pump Drive Gearboxes: Torque Transfer for Peak Pump Performance

The pump drive gearbox (or pump transmission) couples your engine’s crankshaft to the hydraulic pump’s input shaft, delivering smooth, reliable torque at the precise reduction ratio your excavator’s hydraulics demand. Worn gears, pitted bearings, or cracked housings here translate into cavitation, premature pump wear, and erratic flow—compromising digging speed and lift power. VI Equipment stocks fully dressed pump drive gearboxes—housing, gears, bearings, seals, and input/output shafts—that bolt straight in and restore factory torque transfer for consistent hydraulic performance.

Reman & Brand-New Pump Drive Gearboxes for John Deere, Hitachi & Caterpillar

Whether you’re running a Deere 210G’s inline drive, a Hitachi ZX350’s offset gearbox, or a Cat 336’s planetary input unit, we catalogue pump drive gearboxes by machine model, serial prefix, and OEM part number so matching takes minutes. Reman gearboxes are stripped to bare casting, magna-fluxed for cracks, and rebuilt with new case-hardened gears, tapered-roller bearings, and multi-lip seals—delivering OEM torque at roughly 60 % of dealer cost. Brand-new aftermarket units feature forged 8620 alloy steel gears, vitrified bearing races, and high-temp Viton seals, all backed by a 12-month unlimited-hour warranty.

Diagnosing Pump Drive Gearbox Wear Before It Halts Your Operation

Listen for whining under load, feel for input-shaft play, or inspect case-drain for metal slurry—early indicators of gear or bearing fatigue. Rising hydraulic oil temperature at idle or fluctuating pressure under consistent RPM also point to internal gearbox slip. Capture a short video of the noise or pull the magnetic drain plug for debris analysis and email it to our parts desk; we’ll advise whether a reseal, partial rebuild, or full replacement yields the best ROI.

In-House Pump Drive Gearbox Rebuilds: Precision Machining & Dyno Verification

Our Langley gearbox shop completes most pump drive rebuilds in five business days. We cold-strip housings, line-bore bearing journals to ±0.03 mm, and fit induction-hardened spur or helical gears to OEM backlash specs. New tapered-roller bearings are shimmed for preload, and every gearbox runs on a 200 hp dyno stand where we log input torque, gear noise, and case temperature at stepped loads. A printed performance report ships with each unit for full traceability.