LOCK - VALVE (Toyota TY00591-17937-81)

TY00591-17937-81: A damaged valve lock can cause unintended valve movement, leading to system instability. During operation, the lock secures the valve stem in a fixed position to prevent accidental actuation. This aftermarket replacement part references Toyota catalog number TY00591-17937-81. The lock's mechanical function is to physically restrain the valve from rotating or shifting. A common failure consequence is that a worn lock may allow the valve to drift, resulting in erratic control. Verify the serial number or application, then call (562) 693-7748. Call (562) 693-7748 after checking the serial number or application.

Part number variants: TY00591-17937-81, ty00591-17937-81, TY005911793781, ty005911793781