LR026143 | M11 X 178 Hex Bolt - Cylinder Head - 3.0 GDI, 5.0 AJV8 | Range Rover, Discovery, Defender
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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: LR026143 - M11 X 178 Hex-Headed Bolt - Cylinder Head
LR026143 is an M11 x 178 hex-headed bolt used to secure the cylinder head to the engine block on 3.0 GDI and 5.0 AJ V8 engines. Fitted as a cylinder head fastener, it provides the required clamping load between the head and block when fitted to the specified engines. Please note: For use on 5.0 AJ V8 models from engine number 11122107525.
Compatibility
- Defender L663 - 3.0 GDI; 5.0 AJ V8
- Discovery 4 (2010-2016) - 3.0 DOHC GDI V6 (From VIN EA000001); 5.0 AJ133 V8 (From VIN AA000001)
- Discovery 5 (2017 >) - 3.0 DOHC GDI V6 (From VIN EA000001; From VIN K2000001)
- Range Rover (2010-2012) L322 - 5.0 AJ133 V8 (From VIN AA000001)
- Range Rover (2013-2022) L405 - 5.0 AJ133 V8; 3.0 DOHC GDI V6 (From VIN EA000001)
- Range Rover Sport (2010-2013) L320 - 5.0 AJ133 V8 (From VIN AA000001)
- Range Rover Sport (2014-2022) L494 - 5.0 AJ133 V8; 3.0 DOHC GDI V6 (From VIN EA000001)
- Range Rover Velar (2017 >) L560 - 3.0 DOHC GDI V6 (From VIN EA000001); 5.0 Supercharged V8 (From VIN KA000001)
Frequently Asked Questions
LR026143 is an M11 x 178 hex-headed cylinder head bolt that fastens the cylinder head to the engine block on specified 3.0 GDI and 5.0 AJ V8 engines. It is a dedicated head fastener and must match the original specification when replacing during head removal or overhaul. Inspect bolts for damage or distortion whenever the head is removed.
| Model | Variant |
|---|---|
| Land Rover Defender L663 | 3.0 GDI |
| Land Rover Defender L663 | 5.0 AJ V8 |
| Land Rover Discovery 4 (2010-2016) | 3.0 DOHC GDI V6 (From VIN EA000001) |
| Land Rover Discovery 4 (2010-2016) | 5.0 AJ133 V8 (From VIN AA000001) |
| Land Rover Discovery 5 (2017 >) (L462) | 3.0 DOHC GDI V6 (From VIN EA000001) |
| Land Rover Discovery 5 (2017 >) (L462) | 3.0 DOHC GDI V6 (From VIN K2000001) |
| Land Rover Range Rover (2010-2012) (L322) | 5.0 AJ133 V8 (From VIN AA000001) |
| Land Rover Range Rover (2013-2022) (L405) | 5.0 AJ133 V8 |
| Land Rover Range Rover (2013-2022) (L405) | 3.0 DOHC GDI V6 (From VIN EA000001) |
| Land Rover Range Rover Sport (2010-2013) (L320) | 5.0 AJ133 V8 (From VIN AA000001) |
| Land Rover Range Rover Sport (2014-2022) (L494) | 5.0 AJ133 V8 |
| Land Rover Range Rover Sport (2014-2022) (L494) | 3.0 DOHC GDI V6 (From VIN EA000001) |
| Land Rover Range Rover Velar (2017 >) (L560) | 3.0 DOHC GDI V6 (From VIN EA000001) |
| Land Rover Range Rover Velar (2017 >) (L560) | 5.0 Supercharged V8 (From VIN KA000001) |
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.