1336551 - Thermostat O-Ring by AftermarketCooling or Heating Part Land Rover Range Rover Discovery

1336551 - Thermostaat O-ring

- €4,40

€4,40

€4,40 - €4,40

€4,40

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Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Thermostaat O-ring voor de TDV6 dieselmotor.

Deze O-ring zorgt voor de koelvloeistofafdichting bij het thermostaathuis op TDV6 dieselmotoren, waardoor koelvloeistof niet kan omzeilen of lekken bij de verbinding tussen thermostaat en behuizing. Vervanging wordt aanbevolen bij het verwijderen van de thermostaat of wanneer er koelvloeistoflekkage optreedt bij de behuizingsverbinding.

Vehicle Model Land Rover Discovery 3 2005-2009 (L319)
Land Rover Discovery 4 2010-2016 (L319)
Land Rover Discovery 5 2017+ (L462)

Fitment Notes DISCOVERY 3 2005-2009 — 2.7 V6 diesel (Lion), thermostaat/behuizingspakking
DISCOVERY 4 2010-2016 — 2.7/3.0 V6 diesel, thermostaat/behuizingspakking
DISCOVERY 5 2017+ — 3.0 V6 diesel, thermostaat/behuizingspakking

Alternative Codes

1336551

In stock 4 units

3 · Gouda 1 · 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 is the Thermostat O-Ring (1336551) used for?

The Thermostat O-Ring seals the thermostat to its housing on the V6 diesel engine, stopping coolant leaking or bypassing at the thermostat joint. It fits Land Rover Discovery 3, Discovery 4 and Discovery 5 with the 2.7 and 3.0 V6 diesel. Land Rover part number 1336551.

How many O-rings do I need for a thermostat job?

You typically need one Thermostat O-Ring per thermostat on these V6 diesels. It's a single seal at the thermostat-to-housing joint. Fit a fresh O-ring whenever the thermostat is removed, since the old one usually distorts and won't reseal reliably.

Can the Thermostat O-Ring be reused?

Replace the Thermostat O-Ring every time the thermostat is disturbed. Once compressed, the rubber typically takes a set and won't seal again, risking a coolant leak. It's a low-cost item usually renewed as standard on Discovery 3, 4 and 5 V6 diesel thermostat work.

How do I confirm this O-ring fits my Discovery?

This O-ring fits Land Rover Discovery 3 (2.7 V6 diesel), Discovery 4 (2.7/3.0 V6 diesel) and Discovery 5 (3.0 V6 diesel). Match it to Land Rover part number 1336551 and confirm your engine is the V6 diesel. Petrol and four-cylinder engines use a different seal.