LR054792 | Drive Chain Idler - 3.0L V6 Petrol | Discovery & Range Rover
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: LR054792 - Drive Chain Idler
LR054792 is a Drive Chain Idler fitted to the balance shafts and drive on 3.0L DOHC GDI SC V6 Petrol engines. The idler guides and controls the routing of the balance-shaft drive chain where it changes direction, maintaining chain alignment and reducing slack to limit vibration, noise and accelerated wear on chain links and sprockets. A worn or damaged idler can allow excessive chain movement and increase wear on adjacent bearings and sprockets; replacement is recommended when wear, scoring or play is evident. The component is a single mechanical part designed for direct fitment to the balance-shaft drive assembly on the listed 3.0L V6 petrol models; servicing typically involves inspection of the drive chain and correct alignment during reassembly.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 4 (2010-2016) - 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001)
- Discovery 5 (2017 onwards) - 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001)
- Range Rover (2013-2022) - 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001)
- Range Rover Sport (2014-2022) - 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001)
- Range Rover Velar (2017 onwards) - 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001)
Frequently Asked Questions
The drive chain idler guides and controls the balance-shaft drive chain routing, keeping the chain aligned and reducing slack where it changes direction. Common failure modes are wear, scoring or excessive play, which allow chain movement that increases vibration and accelerates wear on sprockets and adjacent bearings; replacement is recommended when these conditions are present. Inspect the drive chain during any balance-shaft service and ensure correct alignment during reassembly.
| Model | Variant |
|---|---|
| Land Rover Discovery 4 (2010-2016) | 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001) |
| Land Rover Discovery 5 (2017 onwards) | 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001) |
| Land Rover Range Rover (2013-2022) | 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001) |
| Land Rover Range Rover Sport (2014-2022) | 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001) |
| Land Rover Range Rover Velar (2017 onwards) | 3.0L DOHC GDI SC V6 Petrol (From VIN EA000001) |
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 idler whenever the balance-shaft drive or related chain is serviced; replace it if there is visible wear, scoring or play, as these defects can accelerate wear on chains and sprockets. If unsure, consult the vehicle workshop manual or a trained technician before proceeding.
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