TUB101630 | 3rd Mainshaft Gear - 300Tdi, Td5 | Defender, Discovery 2, Range Rover P38
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: TUB101630 - 3rd Mainshaft Gear - 27 Teeth - R380
TUB101630 is a 3rd mainshaft gear with 27 teeth for the R380 5-speed manual transmission. Fitted to the transmission mainshaft, this gear meshes with the countershaft to establish the third speed ratio and is engaged when the synchro assembly is selected. Correct tooth count and profile are essential to maintain geartrain geometry and to reduce wear on adjacent gears and synchros; during assembly ensure correct seating on the mainshaft and that any spacers or retaining components are fitted to maintain axial position and engagement depth.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 300Tdi
- Defender (1987-2006) - Td5
- Discovery 2 (1998-2004)
- Range Rover P38 (1994-2001)
Frequently Asked Questions
The TUB101630 is the 3rd mainshaft gear for the R380 five-speed manual gearbox, with 27 teeth. It acts as the driven cog for third speed, meshing with the countershaft gear when the synchro assembly is selected. Correct tooth count and profile are important to preserve geartrain geometry and reduce wear on adjacent gears and synchros; ensure correct seating and any spacers or retaining components are fitted during assembly to maintain axial position and engagement depth.
| Model | Variant |
|---|---|
| Land Rover Defender | (1987-2006) - 300Tdi |
| Land Rover Defender | (1987-2006) - Td5 |
| Land Rover Discovery 2 | (1998-2004) - R380 5-speed manual (Mainshaft gears 3rd/4th) |
| Land Rover Range Rover P38 | (1994-2001) - R380 5-speed manual (Mainshaft gears 3rd/4th) |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
This gear should be replaced if the teeth are worn, chipped or otherwise damaged, or as part of a mainshaft rebuild. Inspect gearbox components during service and consult a service manual or gearbox specialist if unsure.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
All products and accessories available on LRDirect.com come with a 2-year warranty.