Engine Expansion Plugs

Important: To get started, click the blue "Filter Options" button to select your vehicle and then use the filters to narrow your options.

Important: To get started, select your vehicle on the left and then use the filters to narrow your options.

What are engine expansion plugs?

Engine expansion plugs are used to seal the deck of the engine block, cylinder head and other parts. They’re generally made of brass and feature a rubber seal.

What is the purpose of engine expansion plugs?

The purpose of engine expansion plugs is to prevent oil and coolant from leaking out of the engine, as well as preventing dirt and debris from entering the engine.

How do I determine if my engine expansion plug is faulty?

To determine if your engine expansion plug is faulty, inspect the plug and rubber seal for any signs of damage or wear. If the plug or seal appears to be damaged or worn, it may need to be replaced.

Can a faulty engine expansion plug cause damage?

Yes, a faulty engine expansion plug can cause damage to the engine if it is not replaced. A faulty plug can allow oil and coolant to leak out, as well as dirt and debris to enter the engine, which can cause engine damage.

How do I replace an engine expansion plug?

To replace an engine expansion plug, follow these steps:

  1. Remove the old plug by unscrewing it with a wrench or socket.
  2. Clean the area where the new plug will be installed.
  3. Apply a small amount of thread sealant or teflon tape to the threads of the new plug.
  4. Install the new plug and tighten it to the manufacturer's specifications.