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ERC7321LR - Locking Washer – Exhaust Manifold

Original price - Original price €7,70
Original price
€7,70
€7,70 - €7,70
Current price €7,70
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Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Exhaust Manifold Locking Washer that secures the exhaust manifold fixings to the cylinder head.

The tab washer fits under the manifold bolt or nut and is bent up against a flat once tightened, locking the fastener so it cannot work loose under the repeated heat-cycling and vibration of the exhaust system. It is renewed whenever the manifold is removed.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Land Rover Series 2 and 3
Fitment Notes DEFENDER 1987-2006 — exhaust manifold-to-head locking washer; 3.5L V8 Twin Carb & 4.0L V8 EFI
DISCOVERY 1 1989-1998 — 3.5L V8 Twin Carb & V8 EFI exhaust manifold
RANGE ROVER CLASSIC 1986-1994 — V8 EFI & VM diesel (26D/27D/30D/28D/29D) exhaust manifold
SERIES III — Stage 1 V8 exhaust manifold
Alternative Codes
ERC7321LRERC7321

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

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


When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business dayscontact us before ordering.

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 ERC7321 exhaust manifold locking washer for?
The ERC7321 locking washer secures the exhaust manifold fasteners to the cylinder head. The tab bends up against a flat once tightened, locking the bolt or nut so it can't work loose under the exhaust's constant heat-cycling and vibration. It's renewed whenever the manifold comes off.
How many locking washers are needed for an exhaust manifold job?
Typically one washer per manifold fastener, so several per side depending on the engine. They're sold individually, so count the tab washers on your manifold before ordering to cover the full job.
Can the locking washer be reused once removed?
No, these tab washers are typically single-use. The bent tab work-hardens and won't lock securely a second time, so the fastener can loosen under heat and vibration. Fit new washers whenever the exhaust manifold is removed.
Which Land Rover models use this manifold locking washer?
This washer fits exhaust manifold applications on the Land Rover Defender up to 2016, Series 2 and 3, Discovery 1 and Range Rover Classic. Confirm your manifold and engine, as it suits the manifold-to-head fixings on these models.