LOCKWASHER (Toyota TY0302-0004)

TY0302-0004: A damaged lockwasher can allow threaded fasteners to loosen under vibration, leading to joint failure. This aftermarket replacement part references Toyota catalog number TY0302-0004. A lockwasher is a type of hardware washer that creates tension between a nut and the mating surface. Its plain mechanical function is to resist rotational loosening by biting into the fastener and the joint. When a lockwasher fails, the fastener may back out completely, causing component separation. Keeping a lockwasher in sound condition helps maintain clamp load in bolted assemblies. Verify the serial number or application, then call (562) 693-7748.

Part number variants: TY0302-0004, ty0302-0004, TY03020004, ty03020004