WASHER (Komatsu KO01642-40405)

KO01642-40405: A worn washer can compromise the clamping force of a bolted joint, leading to loosening over time. This aftermarket replacement part references the Komatsu catalog and carries the cross-reference number KO01642-40405. The washer functions as a load-distributing spacer placed under a fastener head or nut. Its plain mechanical role is to prevent galling and distribute the tightening load evenly across the mating surface. A common generic failure consequence is that a crushed or missing washer allows the fastener to embed into the softer material, reducing preload. During routine service, a technician may find that a deformed washer has caused a joint to loosen unexpectedly. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO01642-40405, ko01642-40405, KO0164240405, ko0164240405