LR055301 | Bleed Screw - Coolant Expansion Tank | Defender, Discovery, Range Rover
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
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: LR055301 - Bleed Screw - Coolant Expansion Tank
LR055301 is a bleed screw for the coolant expansion tank. Fitted to the expansion tank, it permits trapped air to be released when bleeding the cooling system to ensure correct coolant circulation and prevent airlocks.
Compatibility
- Defender (2020 >) - Various engines
- Discovery 4 (2010-2016) - 3.0 AJ-V6 (From VIN EA000001)
- Discovery 5 (2017 >) - Various engines
- Range Rover (2010-2012) - 3.6 TDV6 (From VIN AA319071)
- Range Rover (2010-2012) - 5.0 AJ-V8 (From VIN AA319071)
- Range Rover (2013-2022) - Various engines
- Range Rover Sport (2010-2013) - 5.0 AJ-V8 (From VIN AA235921)
- Range Rover Sport (2014-2022) - Various engines
Frequently Asked Questions
LR055301 is used to release trapped air from the coolant expansion tank during bleeding of the cooling system. Correct use helps remove airlocks and supports proper coolant circulation; replace the screw if it no longer seals correctly or is damaged.
| Model | Variant |
|---|---|
| Land Rover Range Rover (2010-2012) | 5.0L OHC SGDI SC V8 Petrol - AJ133 (From VIN AA000001) |
| Land Rover Range Rover (2010-2012) | 5.0L OHC SGDI NA V8 Petrol - AJ133 (From VIN AA000001) |
| Land Rover Range Rover (2010-2012) | 3.6L V8 32V DOHC EFi Diesel (From VIN AA000001) |
| Land Rover Discovery 4 (2010-2016) | 3.0L DOHC GDI SC V6 Petrol (Main Unit) (From VIN EA000001) |
| Land Rover Range Rover Sport (2010-2013) | 5.0L OHC SGDI SC V8 Petrol - AJ133 (From VIN AA000001) |
| Land Rover Range Rover (2013-2022) | 5.0L OHC SGDI NA V8 Petrol - AJ133 |
| Land Rover Range Rover (2013-2022) | 5.0 Litre supercharged enhanced / 5.0 Petrol AJ133 DOHC CDA / 5.0L OHC SGDI SC V8 Petrol - AJ133 (Main Unit) |
| Land Rover Range Rover (2013-2022) | 3.0 V6 Diesel |
| Land Rover Range Rover (2013-2022) | 4.4L DOHC DITC V8 Diesel |
| Land Rover Range Rover (2013-2022) | 3.0L DOHC GDI SC V6 Petrol (Main Unit) |
| Land Rover Range Rover (2013-2022) | 2.0L 16V TIVCT T/C 240PS Petrol |
| Land Rover Range Rover (2013-2022) | 2.0L AJ200P Hi PHEV / 2.0L I4 High DOHC AJ200 Petrol (Solihull Plant Build) (From VIN JA000001) |
| Land Rover Range Rover (2013-2022) | 3.0L AJ20P6 Petrol High (Main Unit) (From VIN KA000001) |
| Land Rover Range Rover (2013-2022) | 3.0L AJ20D6 Diesel High (Main Unit) (From VIN LA000001) |
| Land Rover Range Rover Sport (2014-2022) | 5.0 Litre supercharged enhanced / 5.0 Petrol AJ133 DOHC CDA / 5.0L OHC SGDI SC V8 Petrol - AJ133 (Main Unit) |
| Land Rover Range Rover Sport (2014-2022) | 3.0 V6 Diesel |
| Land Rover Range Rover Sport (2014-2022) | 4.4L DOHC DITC V8 Diesel |
| Land Rover Range Rover Sport (2014-2022) | 3.0L DOHC GDI SC V6 Petrol (Main Unit) |
| Land Rover Range Rover Sport (2014-2022) | 2.0L 16V TIVCT T/C 240PS Petrol |
| Land Rover Range Rover Sport (2014-2022) | 2.0L I4 DSL High DOHC AJ200 / 2.0L I4 DSL Mid DOHC AJ200 (Solihull Plant Build) (From VIN HA000001) |
| Land Rover Range Rover Sport (2014-2022) | 2.0L AJ200P Hi PHEV / 2.0L I4 High DOHC AJ200 Petrol (Solihull Plant Build) (From VIN JA000001) |
| Land Rover Range Rover Sport (2014-2022) | 3.0L AJ20P6 Petrol High (Main Unit) (From VIN KA000001) |
| Land Rover Range Rover Sport (2014-2022) | 3.0L AJ20D6 Diesel High (Main Unit) (From VIN LA000001) |
| Land Rover Discovery 5 (2017 >) | 3.0 V6 Diesel (Solihull Plant Build) (From VIN HA000001) |
| Land Rover Discovery 5 (2017 >) | 2.0L I4 DSL High DOHC AJ200 / 2.0L I4 DSL Mid DOHC AJ200 (Solihull Plant Build) (From VIN HA000001) |
| Land Rover Discovery 5 (2017 >) | 3.0L DOHC GDI SC V6 Petrol (Main Unit, Solihull Plant Build) (From VIN HA000001) |
| Land Rover Discovery 5 (2017 >) | 2.0L AJ200P Hi PHEV / 2.0L I4 High DOHC AJ200 Petrol (Solihull Plant Build) (From VIN JA000001) |
| Land Rover Discovery 5 (2017 >) | 3.0 V6 Diesel (Nitra Plant Build) (From VIN K2000001) |
| Land Rover Discovery 5 (2017 >) | 3.0L DOHC GDI SC V6 Petrol (Main Unit, Nitra Plant Build) (From VIN K2000001) |
| Land Rover Discovery 5 (2017 >) | 2.0L I4 DSL High DOHC AJ200 / 2.0L I4 DSL Mid DOHC AJ200 (Nitra Plant Build) (From VIN K2000001) |
| Land Rover Discovery 5 (2017 >) | 2.0L I4 High DOHC AJ200 Petrol (Nitra Plant Build) (From VIN K2000001) |
| Land Rover Discovery 5 (2017 >) | 3.0L AJ20P6 Petrol High (Nitra Plant Build) |
| Land Rover Discovery 5 (2017 >) | 3.0L AJ20D6 Diesel High (Main Unit, Nitra Plant Build) (From VIN M2000001) |
| Land Rover New Defender (2020 >) | 3.0L AJ20P6 Petrol High (Nitra Plant Build) |
| Land Rover New Defender (2020 >) | 2.0L I4 DSL High DOHC AJ200 (Nitra Plant Build) |
| Land Rover New Defender (2020 >) | 2.0L I4 High DOHC AJ200 Petrol (Nitra Plant Build) |
| Land Rover New Defender (2020 >) | 2.0L AJ200P Hi PHEV (Nitra Plant Build) |
| Land Rover New Defender (2020 >) | 3.0L AJ20D6 Diesel High (Main Unit, Nitra Plant Build) (From VIN M2000001) |
| Land Rover New Defender (2020 >) | 5.0 Petrol AJ133 DOHC CDA (Nitra Plant Build) (From VIN M2000001) |
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 bleed screw during any cooling system service and replace it if it is damaged, corroded or no longer seals correctly to prevent coolant leaks or air ingress. When in doubt, consult the vehicle service schedule or a qualified technician.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.
