ERR7004 - Injector O-Ring – Td5 by Land RoverFuel System Part Land Rover Range Rover Defender, Discovery

ERR7004LR - Injector O-Ring – Td5

- €11,70

€11,70

€11,70 - €11,70

€11,70

Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.

Injector O-Ring for the 2.5L Td5 5-Cylinder Turbo Diesel fuel injection system.

This O-ring seats in the groove on the injector body at the cylinder head injector bore, providing a seal between the injector and the head to prevent oil and fuel migration past the injector bore.

Five are required per engine - one per injector. Sold individually.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 2 1998-2004 (L318)

Fitment Notes DEFENDER 1998-2006 — 2.5L Td5 5-Cyl Diesel; injector sealing O-ring
DISCOVERY 2 1998-2004 — 2.5L Td5 5-Cyl Diesel

Alternative Codes

ERR7004ERR7004LR

In stock 11 units

6 · Gouda 5 · Drachten

Express delivery available

5 more on the way · ETA 24-07-2026

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.

5 more units on the way — expected 24-07-2026. Orders beyond current stock are reserved from incoming stock and shipped as soon as they arrive.

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 ERR7004 injector O-ring seal on a Td5 engine?

The ERR7004 is a Genuine Land Rover O-ring that seals the fuel injectors into the cylinder head on the 2.5L Td5 five-cylinder diesel. It prevents fuel and combustion gases leaking around the injector body. It fits the Td5 Defender (up to 2006) and Discovery 2 (1998-2004).

Can the Td5 injector O-rings be reused when servicing the injectors?

No. Injector O-rings are single-use components. Once compressed and heat-set, they won't reseal correctly and risk fuel leaks or compression loss if reused. Replace all five O-rings whenever injectors are removed, even if they look undamaged.

Why use the Genuine Land Rover O-ring rather than an aftermarket equivalent?

The Td5 injector bore is a high-temperature, high-pressure environment. Genuine O-rings (ERR7004LR) are made to the correct specification for the injector diameter and fuel-resistant compound, reducing the risk of fuel leaks and injector seating problems.