Pioneer Automotive Pipe Plug

Pioneer Automotive pipe plugs are NPT threaded fittings for sealing unused ports, oil galleries, and threaded openings in engine blocks, cylinder heads, transmissions, and other powertrain components. Also called Allen head plugs, socket pipe plugs, or NPT plugs, they suit engine building, rebuilding, and general repair work.

Key Features:

• Steel construction for strength and durability under heat and pressure
• NPT (National Pipe Thread) tapered threads for a tight, leak-resistant seal
• Internal Allen (hex socket) drive styles that allow compact, low-profile installation
• Range includes plain and vented options, as well as Teflon-coated versions that help seal the threads
• Used for block ports, oil galleries, and other threaded openings

Pioneer Automotive Industries was founded in 1946 in Meridian, Mississippi. It is known for engine, transmission, and powertrain hardware. Choose the variant whose thread size and head style match your port.