Protect your cylinder head by using a torque-limited socket. This 8mm socket has an advanced torque limiter built in and will not allow the glow plug to be over-torqued in the cylinder head. The most common cause of broken glow plugs and strippled cylinder heads are over-torqued plugs. This will not fit the glow plug with the sensor. (Max torque specification 18nm.)
Will only fit vehicles with a 8mm socket fitting on the glow plug. 8mm is traditionally smaller than most glow plugs which are 10mm. Check the vehicle fitment list below to ensure compatibility with your diesel.