4464732 | Crankshaft Main Bearing - Lower - 4.2 & 4.4 V8 | 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: 4464732 - Crankshaft Main Bearing - Lower
4464732 is a lower crankshaft main bearing. Fitted to the lower main journals, it provides a precision, oil-lubricated bearing surface that supports the crankshaft's rotation in the engine bottom end on 4.2 V8 Supercharged and 4.4 AJ Petrol V8 (220KW) engines. Correct bearing grade selection is critical - follow the workshop manual for installation orientation, bearing clearance measurements and lubrication instructions.
Please note: Blue/Green bearing grade - refer to the workshop manual for proper grade selection.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 3 (2005-2009) - 4.4 AJ Petrol V8 (220KW)
- Range Rover L322 (2002-2009) - 4.2 V8 Supercharged (From VIN 6A000001)
- Range Rover L322 (2002-2009) - 4.4 AJ Petrol V8 (220KW) (From VIN 6A000001)
- Range Rover Sport L320 (2005-2009) - 4.4 AJ Petrol V8 (220KW)
Frequently Asked Questions
The 4464732 lower main bearing forms the rotating interface between the crankshaft lower main journals and the engine block's bearing caps, supplying a precision oil film that carries radial loads and allows smooth bottom-end rotation. It is fitted within the lower main bearing assembly during crankcase reassembly on the listed AJ V8 applications. Incorrect grade selection or contamination can change oil clearance and reduce bearing life, so follow the workshop manual for grade choice, lubrication and clearance checks.
| Model | Variant |
|---|---|
| Land Rover Discovery 3 | 2005-2009 - 4.4 AJ Petrol V8 (220KW) |
| Land Rover Range Rover L322 | 2002-2009 - 4.2 V8 Supercharged (From VIN 6A000001) |
| Land Rover Range Rover L322 | 2002-2009 - 4.4 AJ Petrol V8 (220KW) (From VIN 6A000001) |
| Land Rover Range Rover Sport L320 | 2005-2009 - 4.4 AJ Petrol V8 (220KW) |
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.
- 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.