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ERC4996LR - Core Plug Cup – 53mm

Original price - Original price €5,50
Original price
€5,50
€5,50 - €5,50
Current price €5,50
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Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Core Plug (Cup Type) for sealing the core holes left in the engine block casting after the sand cores are removed during manufacture.

The cup-shaped plug is pressed into the machined bore and seals against the coolant jacket, completing the cooling circuit. It also acts as a relief point if coolant freezes, helping protect the block from cracking.

Nominal 53mm diameter (measured 52.75mm).
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 — 2.25L Petrol, 2.5L Petrol, 2.5L NA Diesel, 2.5L Turbo Diesel, 200Tdi, 300Tdi; 53mm
DISCOVERY 1 1989-1998 — 200Tdi & 300Tdi; 53mm
RANGE ROVER CLASSIC 1992-1994 — 200Tdi & 300Tdi; 53mm
Alternative Codes
ERC4996LRERC4996

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 a cup-type core plug used for?
A cup-type core plug seals the core holes left in the engine block casting after manufacture. It's pressed into the machined bore to seal against the coolant jacket and also acts as a relief point if the coolant freezes, helping protect the block.
What size is this core plug?
This is a nominal 53mm core plug, measuring 52.75mm across. Core plugs are sized to the bore in the block, so match the diameter carefully to get a proper seal.
Which engines does this 53mm core plug fit?
This 53mm plug fits the 2.25L and 2.5L petrol and diesel engines, including the 200Tdi and 300Tdi, on the Defender, Series, Discovery 1 and Range Rover Classic.
When should a core plug be replaced?
A core plug is typically replaced during an engine rebuild, or sooner if it's corroding or weeping coolant. A rusted plug can fail and lose coolant, so it's worth renewing accessible ones while the engine is apart.