Dart durable steel freeze plugs work like expansion plugs. Water expands when it turns to ice, and if the coolant in your vehicle doesn't have enough antifreeze protection, it can freeze and then crack the engine block. Dart freeze plugs are designed to pop out under such conditions to relieve the pressure on the block.
- Freeze Plug
- 55 mm
- 2.5" diameter
- Steel, Zinc Oxide
- Universal
- Sold as Each
- MPN: 32530000