ERR4685 - O-ring

- €0,40

€0,40

€0,40 - €0,40

€0,40

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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 voor de thermostaatbehuizing van het motorkoelsysteem.

Deze afdichtring past op de aftap- of vulplug op de thermostaatbehuizing en zorgt voor een lekvrije afdichting binnen het motorkoelsysteem.

Vehicle Model Land Rover Defender tot 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic tot 1994
Range Rover Classic 1994-2001 (P38)

Fitment Notes DEFENDER 1987-2006 — 2.5L TDi Diesel (200TDi en 300TDi)
DISCOVERY 1 1989-1998 — 2.0L Benzine en 2.5L 300TDi (Van FA393361 tot WA799999)
RANGE ROVER CLASSIC 1992-1994 — 2.5L TDi (Vanaf JA610294)
RANGE ROVER P38 1994-2001 — 4.0L en 4.6L V8 Benzine

Alternative Codes

FOUT4685MKB5171

In stock 59 units

52 · Gouda 7 · 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

Where on the engine does the ERR4685 O-ring seal on a Land Rover?

The ERR4685 is a cooling system O-ring used in TDi diesel and V8 petrol engines. It seals a coolant pipe or housing connection within the engine's cooling circuit. It fits the Defender, Discovery 1, Range Rover Classic, and Range Rover P38 (1994-2001).

Which engines and models use the ERR4685 O-ring?

This O-ring fits 200TDi and 300TDi diesel engines in the Defender and Discovery 1, and V8 petrol (4.0L and 4.6L) in the Range Rover P38. It also covers the Range Rover Classic TDi from VIN JA610294. The alternative code is NTC5171.

Should cooling system O-rings be replaced whenever a connection is opened?

Yes. Cooling system O-rings are typically replaced whenever the connection they seal is disturbed. A compressed or heat-set O-ring won't reseal properly and risks coolant weeping that can be hard to trace until the engine is fully warm.