Brass, Stainless & Mild Steel Core Plugs
worldwide delivery - Engine Core Plugs

Brass, Stainless Steel, Mild Steel, Dish and Cup Engine Core Plugs

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Trusted to deliver 

Core Plugs International™ are the only supplier in the UK (and possibly, the world) that stock the biggest range of core plugs & engine core plug sets in various metals.

For custom-sized plugs or sizes not currently listed, a lead time of 6-8 weeks is necessary to finalize specifications and create tooling. Additional fees will be charged.

Bulk discounts are applied automatically at checkout, ranging from 10% to 50% off the total amount (beginning at £20), excluding postage.

Please note: Due to the difference in names, a 'Core Plug' - either 'cup' or 'dish/welch', can be referred to as the following misnomers: Freeze, Frost, Expansion, Saucer and Welsh. See our Frequently Asked Questions page for more information. 

Looking for a set of plugs for a vehicle? Try entering your request in the search bar above; such as an engine type e.g. X20DTL or Astra, 307 or Peugeot etc.

Delivery information | Terms of Sale, Returns & Refunds

 Certificates of Conformity and Initial Sample Inspection Reports are available upon request.  NDA's welcomed.

All brass, mild & stainless steel plugs, including the material they are made from, originate from the UK.

Replacing Core Plugs



Featured

Audi 100 / Avant Petrol 2.0L 1993-1996

Audi 100 / Avant Petrol 2.0L 1993-1996

Audi 100 / Avant (A100) ENGINE: 2.0L - Pet..

£7.00

Autobianchi A112 /A2 1050cc 1969-1986 (MD)

Autobianchi A112 /A2 1050cc 1969-1986 (MD)

Autobianchi A112 (Supermini) Year(s): 1969-1986..

£6.50

BMW X3, Xdrive, 1, 3 & 5 Series Core Plug Block Set

BMW X3, Xdrive, 1, 3 & 5 Series Core Plug Block Set

1 Series 2lt Diesel 09/2004 – 03/2007 3 S..

£7.00

Fiat 131 & Lancia 828 1995cc - (MD&MC)

Fiat 131 & Lancia 828 1995cc - (MD&MC)

  FIAT 131 & Lancia 828 ENGINE: 199..

£6.10

Escort RS Cosworth 4wd T34 June 1992-1994

Escort RS Cosworth 4wd T34 June 1992-1994

Escort RS Cosworth 4wd T34 ENGINE: YB 4 CYLI..

£11.00

XJ6 Series I, II & III Core Plug Set

XJ6 Series I, II & III Core Plug Set

Fits: XJ6 Series I, II & III Eng..

£19.75

Land Rover Discovery II Defender 90, 110 & 130, 1998 onwards core plug set (MC)

Land Rover Discovery II Defender 90, 110 & 130, 1998 onwards core plug set (MC)

2.5L TDI 1998 onwards Defender 90, 110 & 130 &..

£12.50

ASTRA-G + ZAFIRA-A Diesel 1686cc 1.7L - 1998 - 2010 - Y17DT Z17DTL

ASTRA-G + ZAFIRA-A Diesel 1686cc 1.7L - 1998 - 2010 - Y17DT Z17DTL

Model: ASTRA-G + ZAFIRA-A Engine Size: 1.7L 169..

£13.00