How to Replace a Freeze Plug

Below guide will teach you How to Replace a Freeze Plug. Please follow the instructions carefully.

Things You’ll Need:

  • Flashlight
  • Pliers
  • Ball Peen Hammer
  • Socket and Ratchet Set
  • Punch Set
  • Freeze Plug

Estimated Costs:

  • DIY Costs: Est. $34.96 parts only
  • Shop Costs: Est. $104.49 parts and labor


  • You can find the round freeze plug on the sides of the engine block.
  • Using cooling system pressure tester, pressure test the radiator for any leaks.
  • Carefully, examine the freeze plugs for any signs of leaks.
  • Put a drain pan at the bottom of the radiator. Unfasten the radiator drain plug or disconnect the lower radiator hose to allow the coolant to drain out in the drain pan.
  • Using mallet or hammer, tap the inner edge of the freeze plug. Take the leaked freezer plug out.
  • Using emery cloth, wipe off any debris, dirt from the surface of the engine block hole.
  • Take a large socket and tap the new freeze plug evenly into its place.
  • Put the radiator drain plug back or reconnect the lower radiator hose. Next, add fresh coolant (mixture of 50% water and 50% antifreeze agent) to the radiator.
  • Using pressures test, inspect the radiator again for any leaks.

Further Reading

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