Thread Size: M18 x 1.5mm. Thread Size: M18 x 1.5mm. Drive: 21mm. Use with 21mm socket.
Sealey Oxygen Sensor Port Thread Chaser M18 x 1.5mm Thread Cleaning/Repairing
O2 Oxygen Sensor Port 12mm with M12 x 1.25mm Plug Weld-in Stainless Steel
Sealey Oxygen Sensor & Thread Chaser Set 5 Piece Lambda Sensor Tester SX0320
Sealey Oxygen Sensor Thread Repair Kit M18 x 1.5mm Restorer Adjustable Sockets
Sealey VS536 Nitrogen Oxide Sensor Port Thread Chaser M22 x 1.5mm
Sealey Nitrogen Oxide Sensor Port Thread Chaser M22 x 1.5mm VS536
