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Under Carriage

Non-Marking Rubber Tracks

FAQs

Symptoms point the way: weak or jerky travel, one-side pull and poor gradeability suggest the hydraulic motor; noise, whining, grinding and metal in the gear oil point to the planetary gearbox. Drain a little gearbox oil and look — glitter or water means the gear end. Either way, the machine serial confirms the correct unit or component.

Depends what's gone and the machine's value. Seals, bearings and individual planetary components suit a workshop rebuild when the housings and gears survive. Mixed damage, scored housings or harvest-season urgency favour a complete unit — one part number, one fitting, machine back to work. Both routes are listed; the serial confirms options.

Because visually identical units differ internally between serial breaks — ratios, motor displacement, sprocket patterns and mounting details change mid-series. Ordering on appearance is how wrong units arrive. Make, model and serial, sent via Ask Simon or WhatsApp, pins the exact build before anything ships.

Gearbox oil discipline: check level and condition on schedule, change on the book interval, and treat any leak as urgent — a final drive run low destroys itself quietly. Keep track tension correct so the drive isn't fighting the chain, and replace hooked sprockets with the chain rather than after it.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

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Final Drive

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Final drives turn hydraulic power into track movement: the travel motor and planetary gearbox unit at each side of a tracked machine, driving the sprocket that moves the chain. PartsForMachines supplies final drives and final drive components matched by machine make and model, with sprockets, chains, rollers and the rest of the undercarriage system in the same section.

The assembly pairs two elements that fail differently. The hydraulic travel motor end suffers contaminated oil and worn internals, showing as weak travel, one-side pull or a machine that won't climb its grade. The planetary gearbox end runs its own oil bath, and the classic killer is simple neglect: gear oil never checked, never changed, until water and metal finish the gears and bearings. Units are listed as complete final drives, travel motors and gearbox components, with each product page carrying the machine fitment, sprocket pattern and mounting details. Ask Simon confirms fitment from the machine model and serial, which on final drives is non-negotiable, since visually similar units differ internally between serial breaks.

The maintenance habit that saves these units costs minutes: check the gearbox oil level and condition on schedule, change it as the book says, and investigate any leak at once, because a final drive run low is a final drive destroyed. Pair sprocket replacement with chain condition, since a hooked sprocket eats a new chain.

Final drive failures stop machines dead, so confirm fitment and availability fast: send the machine make, model and serial via WhatsApp 07754288583.

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