ERR4710 - O-Ring

- €1,80

€1,80

€1,80 - €1,80

€1,80

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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.

O-Ring sealing the front crankshaft (timing) sprocket within the timing case of the 2.5L 300TDi turbo diesel engine.

It forms an oil-tight seal around the crankshaft sprocket to stop oil escaping from the timing case. Renew the O-ring whenever the sprocket or front timing cover is disturbed during service.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DEFENDER 1987-2006 — 2.5L 300 Tdi Diesel Turbo
DISCOVERY 1 1989-1998 — 2.5L 300 Tdi (From FA393361 to WA799999)
RANGE ROVER CLASSIC 1992-1994 — 2.5L Tdi (From JA610294)

Alternative Codes

ERR4710

In stock 56 units

35 · Gouda 21 · 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 1 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the ERR4710 O-ring used for?

The ERR4710 O-ring seals the front crankshaft timing sprocket inside the timing case of the 2.5L 300TDi engine, forming an oil-tight seal that stops oil escaping from the timing case. It sits behind the front timing cover on the crankshaft nose.

When should this O-ring be replaced?

Replace the ERR4710 O-ring whenever the crankshaft sprocket or front timing cover is disturbed during service on the 300TDi. It's a single-use seal, so reusing an old O-ring typically leads to oil weeps from the timing case. Fit a new one any time the timing case is opened.

Which models use the ERR4710 timing O-ring?

The ERR4710 fits the 2.5L 300TDi diesel engine on the Defender (1987-2006), Discovery 1 (VIN FA393361 to WA799999) and Range Rover Classic (from VIN JA610294). Confirm your engine is the 300TDi, as the timing arrangement differs from the earlier 200TDi.