Arctic Cat XC450 CYLINDER Piston GASKET. FITS MODELS: 2011 425 EFI CR CAT GREEN (A2011IRK4CUSZ) 2011 425 EFI CR GREEN (A2011IRK4CUSG) 2011 425 EFI CR RED (A2011IRK4CUSR) 2011 450 EFI CAT GREEN (A2011ICK4CUSZ) 2011 450 EFI GREEN (A2011ICK4CUSG) 2011 450 EFI METALLIC GRAY (A2011ICK4CUSS) 2011 450 EFI RED (A2011ICK4CUSR) 2011 450 EFI TIMBER CAMO (A2011ICK4CUSH) 2011 TRV 450 EFI RED (A2011TBK4CUSR) 2011 XC 450 EFI BLACK (A2011KCK4CUSP) 2011 XC 450 EFI CAT GREEN-BLACK (A2011KCK4CUSZ) 2012 425 CR BLACK (A2012IRK4CUSP) 2012 425 CR GREEN (A2012IRK4CUSG) 2012 425 CR RED (A2012IRK4CUSR) 2012 425 CR SE METALLIC BLACK (A2012IRK4CUSQ) 2012 425 CR SE METALLIC GRAY (A2012IRK4CUSS) 2012 450 GREEN (A2012ICK4CUSG) 2012 450 GT BLUE (A2012BGK2PUSD) 2012 450 GT ORANGE (A2012BGK2PUSU) 2012 450 RED (A2012ICK4CUSR) 2012 450 TIMBER CAMO (A2012ICK4CUSH) 2012 TRV 450 BLACK (A2012TBK4CUSP) 2012 TRV 450 GT ORANGE (A2012TGK2PUSU) 2012 XC 450 EFI BLACK (A2012KCK4CUSQ) 2012 XC 450 EFI ORANGE-BLACK (A2012KCK4CUSY) 2013 450 CR GREEN (A2013IRK4CUSG) 2013 450 CR RED (A2013IRK4CUSR) 2013 500 GREEN (A2013ICK4CUSG) 2013 500 RED (A2013ICK4CUSR) 2013 500 XT BLUE (A2013BSK4CUSD) 2013 500 XT CAMO (A2013BSK4CUSH) 2013 TRV 500 RED (A2013TBK4CUSR) 2013 XC 450 EFI GREEN (A2013KCK4CUST) 2014 450 GREEN (A2014IRK4CUSG) 2014 450 RED (A2014IRK4CUSR) 2014 500 GREEN (A2014ICK4CUSG) 2014 500 RED (A2014ICK4CUSR) 2014 500 XT ORANGE (A2014BSK4CUSU) 2014 500 XT TIMBER CAMO (A2014BSK4CUSH) 2014 PROWLER 500 HDX GREEN (U2014P5K4CUSG) 2014 PROWLER 500 HDX LTD GREEN (U2014P7K4CUSN) 2014 PROWLER 500 HDX LTD RED (U2014P7K4CUSE) 2014 PROWLER 500 HDX RED (U2014P5K4CUSR) 2014 PROWLER 500 HDX XT GREEN (U2014P6K4CUSN) 2014 PROWLER 500 HDX XT RED (U2014P6K4CUSE) 2014 TRV 500 GREEN (A2014TBK4CUSG) 2014 TRV 500 RED (A2014TBK4CUSR) 2014 XC 450 EFI RED/BLACK (A2014KCK4CUSE) 2015 450 GREEN (A2015IRK4CUSG) 2015 450 RED (A2015IRK4CUSR) 2015 500 GREEN (A2015ICK4CUSG) 2015 500 RED (A2015ICK4CUSR) 2015 PROWLER 500 HDX GREEN (U2015P5K4CUSG) 2015 PROWLER 500 HDX RED (U2015P5K4CUSR) 2015 TRV 500 GREEN (A2015TBK4CUSZ) 2015 TRV 500 RED (A2015TBK4CUSR) 2015 XC 450 EFI ORANGE (A2015KCK4CUSY) 2015 XR 500 GREEN (A2015XAK4CUSG) 2015 XR 500 RED (A2015XAK4CUSR) 2016 500 GREEN (A2016ICK4CUSG) 2016 500 RED (A2016ICK4CUSR) 2016 ALTERRA 450 (A2016KAK4CUSR) 2016 ALTERRA 450 GREEN (A2016KAK4CUSG) 2016 ALTERRA 500 XT EPS BLACK (A2016XCK2PUSQ) 2016 ALTERRA 500 XT EPS WHITE (A2016XCK2PUSW) 2016 HDX 500 XT RED (U2016R6K4CUSM) 2016 XC 450 EFI (A2016KCK4CUST) 2017 500 GREEN (A2017ICK4CUSG) 2017 500 RED (A2017ICK4CUSR) 2017 ALTERRA 500 GREEN (A2017KAK4CUSG) 2017 ALTERRA 500 RED (A2017KAK4CUSR) 2017 ALTERRA TRV 500 GREEN (A2017THK4CUSZ) 2017 ALTERRA TRV 500 RED (A2017THK4CUSR) 2017 HDX 500 XT BLACK (U2017R6K4CUSP) 2017 HDX 500 XT GREEN (U2017R6K4CUSX) 2017 XC 450 EFI GREEN (A2017KCK4CUSX) 2018 ALTERRA 500 GREEN (A2018KAK4CUSG) 2018 ALTERRA 500 RED (A2018KAK4CUSR).