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STC3860 - Gearbox Gear Kit by BearmachTransmission or Gearbox Part Land Rover Range Rover Defender

STC3860 - Gearbox Gear Kit

- €61,20
€61,20
€61,20 - €61,20
€61,20
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Gearbox Oil Pump Gear for the LT85 5-speed manual gearbox.

The LT85 gearbox incorporates an internal oil pump that circulates lubrication through the transmission under load. This gear forms part of the oil pump assembly and is essential to maintaining adequate oil pressure within the gearbox. Wear or damage to the pump gear leads to insufficient lubrication, increased gearbox noise, and accelerated wear of bearings and gear sets.
Vehicle Model Land Rover Defender up to 2016
Fitment Notes DEFENDER 1987-2006 — Gearbox gears, manual transmission, V8. Superseded to STC3860LR
Alternative Codes
STC3860

In stock 3 units
3 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the STC3860 gearbox gear for?
The STC3860 is the oil pump gear for the LT85 five-speed manual gearbox. The LT85's internal oil pump circulates lubrication through the transmission under load, and this gear drives that pump. It keeps oil pressure up inside the gearbox to protect the bearings and gear sets.
What happens if the LT85 oil pump gear wears out?
A worn or damaged LT85 oil pump gear reduces oil circulation inside the gearbox, leading to poor lubrication. Typical symptoms are increased gearbox noise and accelerated wear of the bearings and gear sets. Renewing the pump gear restores proper oil flow and helps prevent further internal damage.
Which Land Rover does the STC3860 fit?
The STC3860 fits the LT85 five-speed manual gearbox used behind the V8 in the Land Rover Defender (1987-2006). Confirm your gearbox is the LT85 before ordering, as other manual boxes fitted to these vehicles use a different lubrication arrangement.

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