PLUG - EXPANSION (Mitsubishi MB1039013)

A damaged expansion plug can allow coolant or oil to leak from core passages, leading to gradual fluid loss. During inspection, an expansion plug may show signs of corrosion or pitting that compromise its seal. The plug's plain mechanical function is to seal core holes in castings, preventing fluid escape under normal operating pressure. Keeping an expansion plug in sound condition helps avoid overheating or lubrication starvation from unnoticed leaks. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB1039013. The item ships at approximately 0.082 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB1039013, mb1039013