Upgrade your Polaris RZR's valvetrain today—race-proven
A: The kit includes one piston
This billet version is precision-machined for maximum reliability
79mm stock bore Nikasil cylinder for optimal heat transfer and durability
FITS ALL '02-18 YZ-85 MODELS Aftermarket stock bore cylinder
KX450F 2009 2010 2011 2012 2013 2014 2015 2016 Kibblewhite Exhaust Valves & Seal NEEDS TAGS Upgrade your Polaris RZR's valvetrain40 40656, 40 40652, 12004 0034, 12005 0049, 92049 1062, 71015 4, 7101540 40652 MRS15, 40 40652, 40 40656, 71015 4, 71015 0916 Kawasaki KX450F Kibblewhite Exhaust Valves & Viton Seals Kit Product Overview Upgrade your Kawasaki KX450F with the most trusted exhaust valve set in the market. This Kibblewhite kit includes a pair of high performance Black Diamond Stainless Steel Exhaust Valves and authentic RED Hi Temp Viton Valve Stem Sealsbuilt to