37H770L - Sedimentor O-Ring by AftermarketFuel System Part Land Rover Range Rover Defender, Discovery, Range Rover

37H770LLR - Sedimentor O-Ring

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€3,10

€3,10 - €3,10

€3,10

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

Sedimentor O-Ring for the diesel fuel filter assembly.

This rubber sealing ring seals the sedimentor bowl against the filter head, preventing fuel leaks. Also serves as the fuel filter sealing washer.

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 — Diesel: fuel filter sealing washer & sedimentor O-ring
DISCOVERY 1 1989-1998 — Diesel filter & sedimentor O-ring (VIN FA393361 to WA799999)
RANGE ROVER CLASSIC 1992-1994 — Diesel filter & sedimentor O-ring (from VIN JA610294)

Alternative Codes

37H770L37H770LLR

On order 5 units · ETA 18-10-2026

Currently out of stock. Order now — we'll ship as soon as it arrives.

When will my order arrive?

We have 5 units on order from our supplier, expected 18-10-2026. Order now to reserve — we'll dispatch as soon as stock arrives.

Netherlands / Belgium / Germany: 2–4 working days after dispatch.
Other EU countries + UK: 4–8 working days after dispatch.

Need it sooner? Contact us about express import (2–5 business days).

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 37H770L sedimentor O-ring for?

The 37H770L sedimentor O-ring seals the sedimentor bowl against the diesel fuel filter head, preventing fuel leaks. On these installations it also serves as the fuel filter sealing washer, so it does double duty in the filter assembly.

Should the sedimentor O-ring be replaced every time?

Replace the O-ring whenever you disturb the sedimentor bowl or change the diesel fuel filter. Rubber seals take a set once compressed and can weep fuel if reused, so fitting a fresh one each service is the safe approach.

Which models and VIN ranges does it fit?

It fits the diesel Defender (1987-2006), Discovery 1 (1989-1998, VIN FA393361 to WA799999) and Range Rover Classic (1992-1994, from VIN JA610294). Use your VIN to confirm the correct fuel filter and sedimentor setup for your vehicle.