539706 – Inner Pinion Bearing
Fits Land Rover Differential | Available in TIMKEN or Allmakes/Britpart
Keep your driveline running smooth and quiet with a fresh inner pinion bearing. The 539706 supports the pinion gear inside your differential — a worn-out bearing here leads to howling noises, vibration, and eventually a cooked gear set.
Choose from Aftermarket Allmakes/Britpart for solid value or go with TIMKEN for premium OE quality and long-term reliability.
Key Features:
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Direct replacement for factory inner pinion bearing
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Maintains proper gear mesh and preload
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Reduces drivetrain noise and gear wear
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Fits multiple Rover diffs — check fitment below
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Available in Allmakes/Britpart or TIMKEN
Fitment:
- Discovery 1
- Discovery 2
- RRC
- Defender
- Series
Options:
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539706 – Aftermarket (Allmakes/Britpart)
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539706G – Premium (TIMKEN)
Frequently Asked Questions:
Q: Should I replace both pinion bearings at once?
A: Yes. We recommend replacing both inner and outer pinion bearings during a rebuild to ensure even wear and proper preload.
Q: Is TIMKEN worth the extra cost?
A: Absolutely — TIMKEN is OE on many Land Rovers, and their bearings are trusted in racing and industrial use. Perfect for serious rebuilds.
Q: Do I need special tools?
A: A bearing puller and press are recommended. You’ll also need to reset pinion preload and check gear mesh after install.
Part Number: 539706
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