4359953 - O-Ring – Thermostat Housing – 53mm

- €5,60

€5,60

€5,60 - €5,60

€5,60

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OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

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

4359953

In stock 1 unit

1 · Gouda 0 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

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 does this thermostat housing O-ring do?

This 53mm O-ring seals the thermostat housing joint in the engine cooling circuit against coolant leakage. It fits the 4.4L AJ V8 petrol engine and is renewed whenever the thermostat housing is disturbed during service.

Which vehicles and engine does this O-ring fit?

This O-ring fits the 4.4L AJ V8 petrol engine in the Discovery 3, Range Rover L322 and Range Rover Sport L320, from VIN 6A000001. Confirm your engine is the 4.4 V8 petrol, as other engines use different cooling seals.

Can the O-ring be reused when refitting the housing?

No, renew this O-ring whenever the thermostat housing is removed. Once compressed in service the rubber takes a set and hardens, so a reused seal often weeps coolant. Fitting a fresh 53mm O-ring on reassembly avoids a repeat leak.

4359953 - O-Ring – Thermostat Housing – 53mm

Job kits containing this part

Frequently asked questions

Alternative & Related Options