FS - Viscous Fan coupling

I have a viscous fan coupling for sale which I have had since I owned my e28 525e. I got it with the car as spares but as I found out, not all the stuff I got with the car was exclusivley for that car and as I no longer have the car, the spares are going too. Details for the fan coupling have come from real OEM. The item does not have it's original box but it is a genuine BMW part, the make is Behr and it's been in a cupboard under my stairs for about 8 years.

Fan coupling p/n 1 706 619

Part 11521706619 (FAN COUPLING) was found on the following vehicles:

M40, M43 M50  6 cylinder engines

E12: Details on E12
E12 525 SEDAN, Euro
E12 528i SEDAN, Euro
E12 535i SEDAN, Euro

E21: Details on E21
E21 320 SEDAN, Euro
E21 323i SEDAN, Euro

E23: Details on E23
E23 728i SEDAN, Euro
E23 728iS SEDAN, Euro
E23 732i SEDAN, Euro
E23 735i SEDAN, Euro
E23 745i SEDAN, Euro

Any more info or pics required, pm me. For one of these from BMW is about £115. I am looking for reasonable offers, it's in immaculate condition, as new.

Cheers

Mike