Skip to content
ERC9220 - Dome Nut Hardware Part Land Rover Range Rover Defender

ERC9220 - Dome Nut

- €5,90
€5,90
€5,90 - €5,90
€5,90
Tip: Log in to your account to unlock volume discounts on this item.
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.
Dome Nut securing the rocker cover to the cylinder head.

This M8 domed nut clamps the rocker (cam) cover down onto its gasket, the closed dome capping the stud. Used on 2.25L and 2.5L petrol and 2.5L diesel (naturally aspirated and turbo) four-cylinder engines.
Vehicle Model Land Rover Defender up to 2016
Alternative Codes
ERC9220

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 days — contact 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 does the ERC9220 dome nut do?
The ERC9220 is an M8 dome nut that secures the rocker cover to the cylinder head on the Defender's 2.25 and 2.5 litre four-cylinder petrol and diesel engines. Its domed top caps the stud once the cover is clamped down.
How many dome nuts are needed for a rocker cover?
The quantity depends on how many rocker cover studs your engine has; most four-cylinder Land Rover engines use several around the cover perimeter. Check how many original nuts you're replacing before ordering a full set.
Can the ERC9220 dome nut be reused?
Yes, dome nuts like this are typically reusable as long as the threads and dome aren't damaged or corroded. Replace it if the thread is stripped or the dome has cracked or rounded off.