WASHER - KEYED (Mitsubishi MB0657893)

A worn keyed washer can prevent the ignition key from turning or seating properly. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB0657893. The washer is a keyed type, meaning it has a notch or slot that aligns with a matching feature on the shaft. Its plain mechanical function is to secure the ignition key cylinder in place against rotation. A common generic failure consequence is that a damaged washer may cause the key to stick or fail to engage the lock mechanism. During ignition service, a missing or deformed keyed washer can lead to intermittent starting issues. Verify the serial number or application, then call (562) 693-7748.

Part number variants: MB0657893, mb0657893