Pioneer Automotive Industries Engine Expansion Plug Kit

Pioneer Automotive Industries Engine Expansion Plug Kits are engine expansion plugs, also called freeze plugs, core plugs or welch plugs. They seal the casting holes in an engine block or cylinder head. They suit engine rebuilds and cooling system repairs where old plugs have corroded, leaked or been removed.

Key Features:

• Several material options: The Pioneer program includes steel, brass, stainless steel and threaded plugs, so you can match the plug to the application.
• Steel plugs: Made from fine-grained, cold-rolled steel for lasting strength, and zinc plated for corrosion resistance.
• Stainless steel plugs: Offer the strength of steel with better corrosion resistance where the application calls for it.
• Brass plugs: Solid brass gives the best corrosion resistance in the line.
• Rebuilder-friendly: Pioneer supplies the line with engine rebuilders in mind.

Pioneer Automotive Industries is a long-established supplier of aftermarket replacement parts. Choose the kit that matches your engine and preferred plug material from the options on this page.