LOCKWASHER (Toyota TY03020-005)

TY03020-005: A damaged lockwasher can allow threaded fasteners to loosen under vibration, leading to joint failure. This aftermarket replacement part references Toyota catalog number TY03020-005. A lockwasher is a type of hardware washer that creates tension between a nut or bolt head and the mating surface. Its plain mechanical function is to resist rotational loosening by biting into the fastener and the workpiece. A concrete generic failure consequence is that a missing or worn lockwasher may cause the fastener to back off, resulting in component separation or misalignment. During routine service, a lockwasher should be replaced if it appears flattened or distorted. Verify the serial number or application, then call (562) 693-7748.

Part number variants: TY03020-005, ty03020-005, TY03020005, ty03020005