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ERR4815 - O-Ring

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OEM Part
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 is a sealing ring used on the V8 EFI petrol engine.

It seals an engine sensor at its mounting, maintaining a leak-tight joint.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Land Rover Discovery 2 1998-2004 (L318)
Range Rover Classic 1994-2001 (P38)
Fitment Notes DEFENDER 1987-2006 — 4.0L V8 EFI Petrol (sensor O-ring)
DISCOVERY 1 1989-1998 — 3.5/3.9/4.0L V8 EFI Petrol
DISCOVERY 2 1998-2004 — V8
RANGE ROVER P38 1994-2001 — 4.0/4.6L V8 EFI Petrol
Alternative Codes
ERR4815

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Frequently asked questions

What is the ERR4815 O-ring used for?
The ERR4815 O-ring seals an engine sensor at its mounting on the V8 EFI petrol engine, keeping the joint leak-tight. It's a small rubber sealing ring, not the sensor itself.
Which V8 models does this O-ring fit?
Fits the V8 EFI petrol engine in Defender, Discovery 1 and 2, and Range Rover P38. It covers the 3.5, 3.9, 4.0 and 4.6L V8 applications listed for this part.
Should the O-ring be replaced whenever the sensor is removed?
Yes, this O-ring is typically renewed whenever the sensor it seals is disturbed. Refitting an old, compressed O-ring usually risks a leak at the joint, so it's normally replaced as a matter of course.