ERC5654 - Bypass Hose – 4-Cyl Non-TDi

- €2,30

€2,30

€2,30 - €2,30

€2,30

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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 for the 4-cylinder petrol and naturally-aspirated diesel engines (non-TDi).

It forms the bypass path of the engine cooling circuit, allowing coolant to keep circulating through the block and cylinder head while the thermostat is still closed during warm-up. Once the engine reaches temperature and the thermostat opens, flow is shared with the radiator. A perished bypass hose is a common cause of coolant loss and slow warm-up.

Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3

Fitment Notes DEFENDER 1987-2006 — all 4-cyl petrol & diesel (2.25 & 2.5), less TDi
SERIES II 1958-1961 — 2.0 Diesel engine
SERIES II/IIA 1958-1971 — 2.25 Petrol engine
SERIES IIA 1961-1971 — 2.25 Diesel engine

Alternative Codes

ERC5654273789574871BJH 5654

In stock 16 units

10 · Gouda 6 · 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 ERC5654 bypass hose for?

The ERC5654 is a coolant bypass hose for the 4-cylinder petrol and naturally-aspirated diesel engines, non-TDi. It forms the bypass path of the cooling circuit, letting coolant keep circulating through the block and head while the thermostat is still closed during warm-up. Fits Land Rover Defender and Series 2/2A.

What are the symptoms of a failing bypass hose?

A perished bypass hose is a common cause of coolant loss and slow warm-up on these engines. The hose cracks with age and heat, and a full failure can lead to overheating. It's a cheap cooling-system part worth renewing while other coolant work is being done.

Does this bypass hose fit Tdi engines?

No, this bypass hose fits the non-TDi 4-cylinder engines, the 2.25 and 2.5 petrol and naturally-aspirated diesel. The 200Tdi and 300Tdi use a different cooling layout, so check your engine type before ordering to avoid the wrong hose.