LR100353 | O-Ring - 3.0 Petrol V6, 5.0 V8 | Discovery 4 & 5, Range Rover & Sport, Velar
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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: LR100353 - O-Ring
LR100353 is an O-ring used on thermostat housings and related engine cooling components. Fitted between mating faces, it provides a fluid-tight seal to prevent coolant leakage. Inspect the seal for perishing or damage and replace it when removed or if deterioration is found to ensure reliable operation.
Compatibility
- Discovery 4 (2010-2016) - 3.0 Petrol V6 (From VIN GA000001)
- Discovery 5 (2017 >) - 3.0 Petrol V6 (From VIN GA000001)
- Discovery 5 (2017 >) - 3.0 Petrol V6 (From VIN K2000001)
- Range Rover (2013-2022) - 3.0 Petrol V6 (From VIN GA000001)
- Range Rover (2013-2022) - 5.0 Petrol V8 (From VIN GA000001)
- Range Rover (2013-2022) - 5.0 Petrol V8 (From VIN JA000001)
- Range Rover (2013-2022) - 5.0 Petrol V8 (From VIN KA000001)
- Range Rover Sport (2014-2022) - 3.0 Petrol V6 (From VIN GA000001)
- Range Rover Sport (2014-2022) - 5.0 Petrol V8 (From VIN GA000001)
- Range Rover Sport (2014-2022) - 5.0 Petrol V8 (From VIN JA000001)
- Range Rover Velar (2017 >) - 3.0 Petrol V6 (From VIN GA000001)
- Range Rover Velar (2017 >) - 5.0 Petrol V8 (From VIN KA000001)
Frequently Asked Questions
LR100353 is a sealing O-ring used around thermostat housings and associated cooling joints. It forms a fluid-tight seal to prevent coolant escaping at mating surfaces. Ensure the groove and faces are clean before fitting and replace the O-ring if it is perished, flattened or damaged.
| Model | Variant |
|---|---|
| Land Rover Discovery 4 (2010-2016) | 3.0 Petrol V6 (From VIN GA000001) |
| Land Rover Discovery 5 (2017 >) | 3.0 Petrol V6 (From VIN GA000001) |
| Land Rover Discovery 5 (2017 >) | 3.0 Petrol V6 (From VIN K2000001) |
| Land Rover Range Rover (2013-2022) | 3.0 Petrol V6 (From VIN GA000001) |
| Land Rover Range Rover (2013-2022) | 5.0 Petrol V8 (From VIN GA000001) |
| Land Rover Range Rover (2013-2022) | 5.0 Petrol V8 (From VIN JA000001) |
| Land Rover Range Rover (2013-2022) | 5.0 Petrol V8 (From VIN KA000001) |
| Land Rover Range Rover Sport (2014-2022) | 3.0 Petrol V6 (From VIN GA000001) |
| Land Rover Range Rover Sport (2014-2022) | 5.0 Petrol V8 (From VIN GA000001) |
| Land Rover Range Rover Sport (2014-2022) | 5.0 Petrol V8 (From VIN JA000001) |
| Land Rover Range Rover Velar (2017 >) | 3.0 Petrol V6 (From VIN GA000001) |
| Land Rover Range Rover Velar (2017 >) | 5.0 Petrol V8 (From VIN KA000001) |
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 O-ring whenever the thermostat housing or related cooling components are removed; replace it if it shows signs of perishing, cracking or deformation. It is common practice to fit a new O-ring during such services to ensure a reliable seal.
- 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.