WASHER - LOCK (Toyota TY0302-0006)

TY0302-0006: A damaged lock washer can allow threaded fasteners to loosen under vibration. This aftermarket replacement part references Toyota catalog number TY0302-0006. The lock washer type uses a split or toothed design to create tension against the fastener head. Its plain mechanical function is to prevent rotational loosening by biting into the mating surface. A common failure consequence is that a worn or missing lock washer leads to fastener back-out and joint separation. During routine service, a lock washer may appear flattened or cracked, indicating it can no longer provide adequate locking force. Verify the serial number or application, then call (562) 693-7748.

Part number variants: TY0302-0006, ty0302-0006, TY03020006, ty03020006