WASHER-SIDE (Mitsubishi MB1041302)

A worn side washer can lead to fastener loosening and eventual component misalignment. This aftermarket replacement part references Mitsubishi as the OE maker and cross-references part number MB1041302. The washer functions as a load-distributing spacer between a fastener head and the mating surface. Its primary mechanical role is to prevent galling and distribute clamping force evenly. A common failure consequence is that a missing or deformed washer allows the fastener to embed into the softer material, reducing joint integrity. During routine service, a technician may find the washer cracked or flattened, indicating replacement is needed. Verify the serial number or application, then call (562) 693-7748. The item ships at approximately 0.18 POUNDS.

Part number variants: MB1041302, mb1041302