Hi,
I don't know of a replacement for the complete Slave Cylinder, unless you find one eBay etc
It's usually just the Seal that has split and needs to be replaced, and you can get a Seal Kit here :
Sprint Manufacturing.For £23.00 + Postage you get a new Seal, new Spring, 2 x Banjo Washers,
a new Bleed Nipple, and a new Bleed Nipple cover.

Cheers

