4413478LR - Gasket

- €4,40

€4,40

€4,40 - €4,40

€4,40

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Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.

Thermostat Housing Gasket in the engine cooling system.

This 37 mm gasket seals the joint between the thermostat housing and the engine on AJ-V8 4.4L and 4.2L Supercharged petrol engines. It prevents coolant leakage at the housing face and should be renewed whenever the thermostat housing is removed.

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 — 4.4L V8 EFI (220kW)
RANGE ROVER (L322) 2002-2009 — 4.2L V8 Supercharged, 4.4L V8 EFI (220kW)
RANGE ROVER SPORT (L320) 2005-2009 — 4.2L V8 Supercharged, 4.4L V8 EFI (220kW)

Alternative Codes

4413478LR4413478

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.

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Frequently asked questions

What is this gasket used for?

This gasket seals the thermostat housing against the engine, preventing coolant leakage at the housing face. It's a cooling-system sealing gasket, Genuine Land Rover part 4413478. Typically it's renewed whenever the thermostat housing is removed for service.

Which models does this gasket fit?

This gasket fits the Land Rover Discovery 3 (2005-2009), Range Rover L322 (2002-2012) and Range Rover Sport L320 (2005-2013). It's typically used on the petrol V8 thermostat housing. Genuine part 4413478, also listed as 4413478LR. Confirm your engine before ordering.

When should this gasket be replaced?

Replace this gasket every time the thermostat housing is removed on a Discovery 3, Range Rover L322 or Range Rover Sport. Gaskets like this are typically single-use; the old one loses its seal once disturbed and can weep coolant if refitted. Fitting a fresh gasket ensures a reliable seal.

4413478LR - Gasket

Job kits containing this part

Frequently asked questions

Alternative & Related Options