574871 - Coolant Bypass Hose – 2.25 Petrol

- €6,70

€6,70

€6,70 - €6,70

€6,70

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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.

Coolant Bypass Hose - 2.25 Petrol is the short coolant hose forming the thermostat bypass circuit in the 2.25L Petrol engine cooling system.

When the thermostat is closed during cold engine warm-up, coolant recirculates via this bypass - between the thermostat housing and the water pump inlet - rather than passing through the radiator. This allows the engine to reach operating temperature quickly before the thermostat opens to admit radiator coolant.

Vehicle Model Land Rover Series 2 and 3

Fitment Notes SERIES 2/2A/3 — 2.25L Petrol

Alternative Codes

574871

In stock 33 units

31 · Gouda 2 · 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 the coolant bypass hose 574871 do in the 2.25L petrol cooling circuit?

The bypass hose 574871 forms the thermostat bypass circuit, connecting the thermostat housing to the water pump inlet. When the thermostat is closed during warm-up, coolant recirculates through this hose rather than passing through the radiator, allowing the engine to reach operating temperature quickly on Series 2, 2A, and 3 models.

Where is the coolant bypass hose 574871 located on the engine?

The hose runs between the thermostat housing outlet at the front of the cylinder head and the water pump inlet. It's a short hose, typically visible once the top radiator hose and thermostat housing are accessible on the 2.25L petrol engine.

What are the symptoms of a failed coolant bypass hose on a 2.25L petrol Series?

A split or collapsed bypass hose disrupts the thermostat circuit, typically causing the engine to take longer to reach operating temperature or to overcool at low speeds. In some cases it can also contribute to hot spots at the water pump housing due to reduced flow.