Plastic electrical connectors

[foxy600]

My S2 overheated the other day, as the fan did not cut in! It has been working fine...anyway traced the fault to the white plastic connector just infront of the radiator ( I think from memory there's a red and a black wire). Wiggled the connector and the fan started!
I have noticed a few of these used for lights etc. I have cleaned the connector but now I do not trust it, does anyone know where I can get new ones, or something similar? I was going to try a motor factors?

[Pies]

www.pistonheads.com/gassing/topic.asp?h=0&f=11&t=85277