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4359953R - O-Ring – Thermostat Housing – 53mm by PR2 Allmakes Land Rover Range Rover

4359953R - O-Ring – Thermostat Housing – 53mm

- €3,60
€3,60
€3,60 - €3,60
€3,60
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OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand PR2 Allmakes
O-Ring A 53mm-diameter sealing O-ring for the thermostat housing in the engine cooling circuit.

It seals the thermostat housing joint against coolant leakage on the 4.4L AJ V8 petrol engine, and is renewed whenever the housing is disturbed.
Vehicle Model Land Rover Discovery 3 2005-2009 (L319)
Range Rover 2002-2012 (L322)
Range Rover Sport 2005-2013 (L320)
Fitment Notes DISCOVERY 3 2005-2009 — 4.4 AJV8 Petrol
RANGE ROVER L322 2002-2009 — 4.4 AJV8 Petrol (from VIN 6A000001)
RANGE ROVER SPORT L320 2005-2009 — 4.4 AJV8 Petrol
Thermostat housing O-ring, 53mm dia
Alternative Codes
4359953R4359953

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is this 53mm O-Ring for?
This 53mm O-Ring seals the thermostat housing in the engine cooling circuit, stopping coolant leaking at the housing joint. It's used on the 4.4L AJ V8 petrol engine. This is the OEM-quality version of the thermostat housing seal.
Should the O-Ring be replaced every time?
Yes, renew this 53mm O-Ring whenever the thermostat housing is opened. Once an O-ring has been compressed and heat-cycled it seldom reseals, so reusing it risks a fresh coolant leak. Fit a new seal as standard during any thermostat or housing work.
Which engines use this thermostat housing O-Ring?
This O-Ring fits the Discovery 3, Range Rover L322 and Range Rover Sport L320 with the 4.4 AJ V8 petrol engine. The L322 application runs from VIN 6A000001. Confirm your engine is the 4.4 AJV8 petrol before ordering, since other V8s differ.

Alternative & Related Options

Same part, different brands or quality grades. Click any option to view full details.

2 options
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OEM 4359953 - O-Ring – Thermostat Housing – 53mm
Stock 1
€5,60 excl. VAT
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4359953LR - O-Ring – Thermostat Housing – 53mm
Genuine 4359953LR - O-Ring – Thermostat Housing – 53mm
Stock 0
€9,90 excl. VAT
View →