Well, not new exactly but its aproduct i had never previously considered retailing.

As most of you will know, the YB Fan circuit is not really suitable for the amount of current the fans draw when on for long periods of time and this leads to the fan circuit overheating the fuse connector and relay terminals, resulting in a no fan situation.

Secondly, on many cars, when the fans DO actually work, they often come on too soon, and then wont fooking go off.

Thats because the original system was a little close to the bone on the standard system and whilst on the standard rad its not too much of a problem, put an aftermarket radiator on and your buggered, the fans will stay on even on teh motorway at 70mph due to teh heatsink effect from the alloy end tanks.

We have a solution, but i only ever fitted it to cars we sold rads too, and only realised yesterday after reading it on here than many poeople could benefit, so here it is.

Uprated Radiator fan switch for All Sierras.
Switches on your fans at around 90DegC and Off again at 87Deg C

Works best and closest to those temperatures in an Alloy rad, but its a good upgrade for normal rads too In My Experience, workin around 93/90.

Get those power sapping fans to work properly this summer for only £15.