ERR1972 | Timing Belt Tensioner - 300Tdi | Defender, Discovery 1, Range Rover Classic
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: ERR1972 - Timing Belt Tensioner
ERR1972 is a timing belt tensioner fitted to the timing system of 300Tdi engines. The tensioner uses a spring-loaded pulley and bearing assembly to apply and regulate preload on the timing belt, maintaining correct engagement between the camshaft and crankshaft pulleys while compensating for belt stretch and engine speed variations. Proper tension prevents belt slippage and uneven tooth loading, reducing accelerated wear on belt teeth, idler bearings and cam/crank pulleys. The unit locates against the outer face of the timing belt within the timing cover area and operates continuously while the engine runs; typical fault signs include bearing noise, visible pulley wear or loss of belt tension, and the tensioner should be replaced at the first sign of such faults or when replacing the timing belt.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 300Tdi (to VIN VA117353)
- Discovery 1 - 300Tdi (to VIN VA560897)
- Range Rover Classic (1992-1994) - 300Tdi (From VIN JA610294)
Frequently Asked Questions
The ERR1972 tensioner maintains correct preload on the timing belt using a spring-loaded pulley and bearing assembly, compensating for belt stretch and engine speed changes. This prevents belt slippage and uneven tooth loading, protecting the belt, idler bearings and cam/crank pulleys. Typical failure signs are bearing noise, visible pulley wear or loss of belt tension; replace the unit if these occur or whenever the timing belt is renewed.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 2.5L I4 300 TDi Diesel Turbo - to VIN VA117353 |
| Land Rover Discovery 1 | 300Tdi - to VIN VA560897 |
| Land Rover Range Rover Classic (1992-1994) | 2.5L TDi - From VIN JA610294 |
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.
Replace the tensioner whenever the timing belt is renewed, or sooner if bearing noise, pulley wear or loss of belt tension are observed. If unsure, consult the vehicle handbook or a qualified technician.
- C8 products are usually supplied by Britpart.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.