Cylinder rebuild kit compatible with CF600, CF625, X6, Z6, UTV, ATV, and Quad models.Fits CF600-3 ZForce Z6 (2011–2016), CF600-5 UForce U6 (2011–2015), CF600-6 ZForce Z6-EX (2011–2013), CF625-3 ZForce Z6 (2012–2016), CF625-6 ZForce Z6-EX (2011–2016), and CF625-C Terralander 625 X6 (2012–2014).Part number 0600-023100.Bore diameter 96 mm.Designed as a direct replacement for the cylinder assembly to restore factory-specified fit and function.