WYG500041 | Hex-Head Bolt M8 x45 - 4.0 V6, 3.0 V6, AJ V8 | Discovery, Range Rover Sport
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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
Land Rover Part Number: WYG500041 - Hex-Head Bolt M8 x 45 - Downpipe to Manifold
WYG500041 is a hex-head bolt M8 x 45 used to secure the downpipe to the exhaust manifold. Fitted to the exhaust flange on 4.0 Cologne V6, 3.0 supercharged AJ-V6 and 4.2, 4.4 and 5.0 AJ-V8 petrol engines, this bolt provides the mechanical clamp between the manifold and downpipe; replace if corroded or if threads are damaged.
Compatibility
- Discovery 3 (2005-2009) - Cologne V6 4.0 EFI SOHC - To VIN 9A999999
- Discovery 3 (2005-2009) - AJ Petrol 4.4 V8 EFI 220KW
- Discovery 4 (2010-2016) - Cologne V6 4.0 EFI SOHC - From VIN AA000001
- Discovery 4 (2010-2016) - 3.0L DOHC GDI SC V6 Petrol - From VIN EA000001
- Discovery 4 (2010-2016) - 5.0L OHC SGDI NA V8 Petrol AJ133 - From VIN AA000001
- Range Rover Sport (2005-2009) - 4.2S AJ V8
- Range Rover Sport (2005-2009) - AJ Petrol 4.4 V8 EFI 220KW
- Range Rover Sport (2010-2013) - 5.0L OHC SGDI SC V8 Petrol AJ133 - From VIN AA000001
Frequently Asked Questions
WYG500041 is a hex-head M8 x 45 bolt that fastens the downpipe flange to the exhaust manifold, forming the exhaust flange joint. It secures the manifold-to-downpipe connection and must be fitted and tightened to the manufacturer's torque specification (consult the service manual). Inspect for corrosion, seized or damaged threads and replace if any defects are found.
| Model | Variant |
|---|---|
| Land Rover Discovery 3 (2005-2009) | Cologne V6 4.0 EFI (SOHC) (To VIN 9A999999) |
| Land Rover Discovery 3 (2005-2009) | AJ Petrol 4.4 V8 EFI (220KW) |
| Land Rover Discovery 4 (2010-2016) | Cologne V6 4.0 EFI (SOHC) (From VIN AA000001) |
| Land Rover Discovery 4 (2010-2016) | 3.0L DOHC GDI SC V6 Petrol (Front Section) (From VIN EA000001) |
| Land Rover Discovery 4 (2010-2016) | 5.0L OHC SGDI NA V8 Petrol - AJ133 (From VIN AA000001) |
| Land Rover Range Rover Sport (2005-2009) | 4.2S AJ V8 |
| Land Rover Range Rover Sport (2005-2009) | AJ Petrol 4.4 V8 EFI (220KW) |
| Land Rover Range Rover Sport (2010-2013) | 5.0L OHC SGDI SC V8 Petrol - AJ133 (From VIN AA000001) |
| Land Rover Range Rover Sport (2010-2013) | 5.0L OHC SGDI NA V8 Petrol - AJ133 (From VIN AA000001) |
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 bolt whenever the exhaust is removed or during scheduled exhaust/engine services; replace if it is corroded, stretched, or if the threads are damaged. When refitting, follow the vehicle service manual for correct torque and any specified replacement washers or gaskets.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
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