Verify the part fits before purchasing Specs: Description: Cast Replica Piston Kit Compression Ratio: 9.3:1 Cylinder Bore: 85.000 Piston Diam: 84.970 Displacement: 400.00 Notes: Replica Piston kit; Kit includes: Piston, rings, pin, clips Replaces OEM Numbers: KTM: 77030074000 Fits: Arctic Cat 1000 H2 EFI Mud Pro 2011-2017, 1000 H2 Thundercat 2008-2010, 1000 Prowler XT 2009-2014, 1000 TRV 2009-2015, 400 DVX 2004-2007, 400 DVX 2004-2008, Prowler 1000 XT 2015-2017, Wildcat 1000 2012-2014 Honda TRX 400 EX 1999-2008, TRX 400 X 2009-2014, TRX 500 FE 2005-2011, TRX 500 FM 2005-2011, TRX 500 TM 2005-2006, XR 400 R 1996-2004 Kawasaki KFX 400 2003-2006, KLX 400 R 2003-2004, KRF 750 Teryx 4x4 2008-2013, KVF 750 Brute Force 4x4i 2005-2014, KVF 750 Brute Force 4x4i 2015-2019 Suzuki DR-Z 400 2000-2004, DR-Z 400 2000-2007, DR-Z 400 E 2000-2007, DR-Z 400 S 2000-2017, DR-Z 400 S 2000-2019, DR-Z 400 S 2005-2019, DR-Z 400 SM 2005-2017, DR-Z 400 SM 2005-2019, LT-Z 400 2003-2014 Yamaha YFZ 450 2004-2013, YFZ 450 2004-2017, YFZ 450 R 2009-2014, YFZ 450 R 2009-2019, YFZ 450 R 2009-2020, YFZ 450 X 2010-2011 KTM 250 EXC-F 2001-2006, 250 EXC-F 2007-2012, 250 SX-F 2006-2012, 250 XC-F 2007-2012, 250 XCF-W 2007-2013, 450 EXC 2007, 450 EXC Racing 2003-2006, 450 XC 2006-2007, 450 XC ATV 2008-2012, 520 EXC Racing 2000-2002, 520 SX 2000-2002, 525 EXC 2007, 525 EXC-G 2003-2006, 525 SX 2003-2007, 525 XC ATV 2008-2011, 525 XC ATV 2008-2012 Polaris RZR 4 900 2014, RZR 4 900 XP 2012-2013, RZR 4 900 XP EPS 2013, RZR 4 900 XP Jagged X 2013, RZR 900 2014, RZR 900 XP 2011-2013, RZR XP 1000 2014-2019, RZR XP 4 1000 2014-2019, Scrambler 850 2013-2019, Scrambler 850 HO EPS 2013, Sportsman 850 High Lifter 2016-2019, Sportsman 850 MV 2012-2016, Sportsman 850 SP 2015-2019, Sportsman 850 WV 2014, Sportsman 850 X2 2011, Sportsman 850 XP 2009-2013, Sportsman 850 XP EPS 2009-2014, Sportsman 850 XP EPS HO 2013-2015