IYB500020 | M16 Fill and Drain Plug - Transfer Box - Discovery & Range Rover
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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: IYB500020 - M16 Fill and Drain Plug - Transfer Box
IYB500020 is an M16 fill and drain plug used as the oil fill and drain plug on automatic transfer boxes. Fitted to the transfer box fill/drain port, this plug provides the service access for transferring and retaining transfer box fluid during maintenance.
Compatibility
- Discovery 3 (2005-2009) - Transfer Drive Case (6-speed auto ZF 6HP26, 6-speed manual ZF S6-53)
- Discovery 4 (2010-2016) - Transfer Drive Components (ZF 6HP26, ZF 6HP28, ZF 8HP70)
- Discovery 5 (2017 onwards) - Transfer Drive Components (With 2 Spd Trans Case With Ctl Trac)
- Range Rover (2002-2009) - Transfer Drive Case (5-speed automatic Steptronic; M57 D30 3.0 Diesel; M62 B44 4.4 V8 Petrol)
- Range Rover (2010-2012) - Transfer Drive Components (ZF 6HP26, ZF 6HP28, ZF 8HP70)
- Range Rover (2013-2022) - Transfer Drive Components (With 2 Spd Trans Case With Ctl Trac)
- Range Rover Sport (2010-2013) - Transfer Drive Components (ZF 6HP26, ZF 6HP28, ZF 8HP70)
- Range Rover Sport (2014-2022) - Transfer Drive Components (ZF 8HP45, ZF 8HP70, ZF 8HP70 HEV; With 2 Spd Trans Case With Ctl Trac)
Frequently Asked Questions
IYB500020 is an M16 fill and drain plug that seals the transfer box fill/drain opening on automatic transfer cases. It provides the service access point used when draining or refilling transfer box fluid during maintenance.
| Model | Variant |
|---|---|
| Land Rover Discovery 3 (2005-2009) | Transfer Drive Case (6 Speed Auto ZF 6HP26 Steptronic; 6 Speed Manual ZF S6-53) |
| Land Rover Discovery 4 (2010-2016) | Transfer Drive Components (6 Speed Auto ZF 6HP26; 6 Speed Auto ZF 6HP28; 6 Speed Manual ZF S6-53; 8 Speed Auto ZF 8HP70) |
| Land Rover Discovery 5 (2017 onwards) | Transfer Drive Components (With 2 Spd Trans Case With Ctl Trac) |
| Land Rover Range Rover (2002-2009) | Transfer Drive Case (5 Speed Automatic - Steptronic; M57 D30 3.0 Diesel; M62 B44 4.4 V8 Petrol) |
| Land Rover Range Rover (2010-2012) | Transfer Drive Components (6 Speed Auto ZF 6HP26; 6 Speed Auto ZF 6HP28; 8 Speed Auto ZF 8HP70) |
| Land Rover Range Rover (2013-2022) | Transfer Drive Components (With 2 Spd Trans Case With Ctl Trac) |
| Land Rover Range Rover Sport (2010-2013) | Transfer Drive Components (6 Speed Auto ZF 6HP26; 6 Speed Auto ZF 6HP28; 8 Speed Auto ZF 8HP70) |
| Land Rover Range Rover Sport (2014-2022) | Transfer Drive Components (8 Speed Auto ZF 8HP45; 8 Speed Auto ZF 8HP70; 8 Speed Auto ZF 8HP70 HEV; With 2 Spd Trans Case With Ctl Trac) |
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.
Inspect the plug each time the transfer box fluid is changed and replace the sealing washer at every service to prevent leaks. The plug itself can be reused if the threads and sealing face are undamaged; consult the vehicle handbook or a technician if uncertain.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.