The Protorque Welch Plug Brass Cup 20mm (RBC20) is designed to provide secure sealing of engine block and cylinder head core holes in automotive applications. Featuring a precision-formed brass cup construction, this welch plug offers dependable leak prevention while delivering excellent resistance to corrosion and coolant-related deterioration.

Manufactured to OE-style specifications, the 20mm press-fit design ensures reliable installation and long-term sealing performance. Ideal for engine rebuilds, cooling system maintenance, and replacement of worn or damaged core plugs, it provides a durable solution for maintaining the integrity of your engine.

Note: Sold per piece.

Part Number: RBC20