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C315 - Plug

Original price - Original price €6,70
Original price
€6,70
€6,70 - €6,70
Current price €6,70
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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.
Brand Jaguar
Plug - a core plug (also known as a Welch, freeze or expansion plug) for the engine block or cylinder head.

It seals the core holes left in the casting after the sand cores are removed during manufacture, retaining coolant within the water jacket. Core plugs are renewed when they corrode or weep, and as a matter of course during an engine overhaul.
Alternative Codes
C315

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 C315 core plug used for?
C315 is a core (or Welch/expansion) plug fitted to the engine block or cylinder head. It seals the casting holes left over from manufacture, keeping coolant contained within the water jacket.
When should the C315 core plug be replaced?
Typically when it corrodes or starts weeping coolant, or as a matter of course during an engine overhaul. A failing core plug will show as a coolant leak from the side of the block or head.
How many C315 plugs are fitted to an engine block?
This varies by engine, since core plug count depends on the casting design. Check your specific engine's core plug locations before ordering more than one.