LR004786 | Timing Belt Tensioner - 4.0 Cologne V6 EFI | Discovery 3 2005-2009
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: LR004786 - Timing Belt Tensioner
LR004786 is a timing belt tensioner for the Cologne 4.0 V6 EFI engine. Fitted at the front timing gear, the tensioner applies and regulates tension to the timing belt to keep camshaft and crankshaft positions synchronised and to prevent belt slip or tooth skipping. It compensates for belt stretch and material wear, helping to reduce belt vibration and noise while maintaining steady timing during engine speed changes. During timing belt replacement the tensioner is commonly replaced to restore correct pre-load; inspect the unit for smooth movement and for absence of seizure or noisy operation to identify wear before it affects engine timing.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 3 (2005-2009) - 4.0 Cologne V6 EFI (From VIN TO9A999999)
Frequently Asked Questions
The LR004786 timing belt tensioner keeps the timing belt at the correct tension at the front timing gear of the Cologne 4.0 V6 EFI. Correct tension maintains camshaft and crankshaft synchronization, prevents belt slip or tooth skipping, and compensates for belt stretch and wear to reduce vibration and noise. Inspect the tensioner for smooth movement and absence of seizure or noise as part of timing belt service.
| Model | Variant |
|---|---|
| Land Rover Discovery 3 (2005-2009) | 4.0 Cologne V6 EFI (Front) (From VIN TO9A999999) |
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.
The tensioner is commonly replaced when the timing belt is renewed to ensure correct pre-load and avoid premature belt failure; inspect it during timing belt service and replace if seized, noisy or showing signs of wear.
- L8 products are genuine Land Rover parts.
All products and accessories available on LRDirect.com come with a 2-year warranty.