Hi Kieron

This is what you need, the adapter replaces the sump bolt and the tempreature sender screw into it, then all you got to do is connect the gauge wire to the end of the sender.

http://www.demon-tweeks.co.uk/resour...O_SUMPPLUG.jpg

http://www.demon-tweeks.co.uk/resour...ITT300138N.jpg

The above links are just examples and may not be the correct ones for your car.

Hope that helps
Amit