FB505171S | Flange-Head Bolt - 5/16 X 2-1/8 - V8 | Defender, Discovery 1, Discovery 2
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: FB505171S - UNC Flange-Head Bolt - 5/16 X 2-1/8
FB505171S is a UNC flange-head bolt, size 5/16 x 2-1/8. Fitted on V8 engine applications, this flange-head bolt secures the front cover assembly and provides the clamping required to hold the cover in place.
Compatibility
- Defender (1987-2006) - 4.0L V8 EFI Petrol
- Discovery 1 (1989-1998) - From VIN FA393361 to WA799999
- Discovery 2 (1998-2004) - V8
Frequently Asked Questions
FB505171S is a UNC flange-head bolt (5/16 x 2-1/8) used to secure the engine front cover on V8 applications. It provides the clamping required to hold the front cover assembly in place and should be fitted to the designated positions for V8 engines.
| Model | Variant |
|---|---|
| Land Rover Defender (1987 - 2006) | 4.0L V8 EFI Petrol - Front Cover |
| Land Rover Discovery 1 (1989 - 1998) | 4.0L V8 EFI Petrol - Front Cover (VIN: FA393361 to WA799999) |
| Land Rover Discovery 2 (1998 - 2004) | V8 - Front Cover |
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 these bolts whenever the front cover is removed or during routine engine servicing; replace any bolt that shows thread damage, corrosion, or a rounded head. If unsure, consult the vehicle's service manual or a qualified technician.
- 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.