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Namura Top End Repair Piston Kit


Namura top-end repair kit can help improve the performance of your ride and keeping it running in peak condition. Each kit includes everything you need to get your ride operational again; piston, piston rings, top-end gasket kit to get the job done.

  • Everything you need to service your engine in one convenient kit
  • Comes with enough components to service one engine
  • Piston comes with rings
  • Top end gasket kit
  • Everything for a top end rebuild in one box
Specification Details
Bore Varies (make selection above)
Compression Ratio Varies (make selection above)
Displacement Varies (make selection above)
Number of Pistons Included Varies (make selection above)
Piston Diameter Varies (make selection above)
Piston Type Varies (make selection above)
Size Varies (make selection above)
Size Over Standard Varies (make selection above)
Type Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Arctic Cat
  • 250 2x4 1999-2005, 2009
  • 250 4x4 2001-2005
  • 300 2x4 1998-2004
  • 300 4x4 1998-2005
  • 400 2x4 Auto 2003-2004
  • 400 2x4 Manual 2003
  • 400 4x4 Auto 2003-2008
  • 400 4x4 Auto ACT 2003-2004
  • 400 4x4 Auto VP 2005-2006
  • 400 4x4 Manual 2003-2007
  • 400 4x4 Manual ACT 2003-2004
  • 400 4x4 Manual VP 2005-2006
  • 500 4x4 Auto 2000-2009
  • 500 4x4 Auto FIS 2002
  • 500 4x4 Auto M4 2008
  • 500 4x4 Manual 1998-2009
  • 500 4x4 Manual FIS 2002
  • 650 V2 4x4 Auto 2005-2006
  • 700 H1 EFI 2006-2008
  • DVX 300 2009-2015
  • DVX 400 2004-2008
  • TBX 400 2004-2006
  • TBX 500 2002-2006
  • TRV 400 2006-2008
  • TRV 400 Plus 2007
  • TRV 500 2003-2006, 2008
  • TRV 700 2008
  • TRV 700 Cruiser 2008
Bombardier
  • Outlander 330 2x4 2004-2005
  • Outlander 650 2006
  • Outlander 650 XT 2006
  • Outlander MAX 650 2006
  • Outlander MAX 650 XT 2006
Can-Am
  • Commander 1000 2011-2018
  • Commander 1000 X 2011-2013
  • Commander 1000 XT 2011-2018
  • Commander 1000 XT-P 2014-2017
  • Commander 1000R 2018-2019
  • Commander 1000R XT 2018-2019
  • Commander 800 2011, 2014-2015
  • Commander 800 XT 2014-2015
  • Commander 800R 2012-2013, 2016-2019
  • Commander 800R XT 2012-2019
  • Commander MAX 1000 2014-2018
  • Commander MAX 1000 XT 2014-2018
  • Commander MAX 1000R 2018
  • Commander MAX 1000R XT 2018-2019
  • Defender HD10 2016-2019
  • Defender HD10 MAX XT 2017-2019
  • Defender HD10 MAX Xmr 2019
  • Defender HD10 XT 2016, 2018
  • Defender HD10 XT-P 2019
  • Defender HD10 Xmr 2019
  • Defender HD5 2018-2020
  • Defender HD8 2016-2019
  • Maverick 1000 2013-2015
  • Maverick 1000 Xmr 2014-2015
  • Maverick 1000 Xrs 2013-2015
  • Maverick 1000 Xxc 2014-2015
  • Maverick 1000R 2016
  • Maverick 1000R XC 2016, 2018
  • Maverick 1000R Xds 2015-2016
  • Maverick 1000R Xmr 2014-2018
  • Maverick 1000R Xxc 2016-2018
  • Maverick MAX 1000 2014-2015
  • Maverick MAX 1000 Xrs 2014-2015
  • Maverick MAX 1000R 2016-2018
  • Maverick MAX 1000R Xds 2016
  • Maverick MAX 1000R Xmr 2017-2018
  • Maverick Sport 1000 2019
  • Maverick Sport 1000R 2019
  • Maverick Sport 1000R Xmr 2019
  • Maverick Sport 1000R Xrc 2019
  • Maverick Trail 1000 2019
  • Maverick Trail 800R 2018-2019
  • Outlander 1000 2012-2015
  • Outlander 1000 6x6 XT 2015-2018
  • Outlander 1000 XT 2012-2015
  • Outlander 1000 XT-P 2013-2019
  • Outlander 1000 Xmr 2013-2019
  • Outlander 1000R 2019
  • Outlander 400 2007-2008
  • Outlander 400 EFI 2008-2014
  • Outlander 400 EFI XT 2008-2014
  • Outlander 400 XT 2007-2008
  • Outlander 450 2017-2020
  • Outlander 500 2007-2015
  • Outlander 500 XT 2007-2015
  • Outlander 500 XT-P 2010-2011
  • Outlander 570 2017-2021
  • Outlander 570 XT 2017-2021
  • Outlander 570 Xmr 2017-2021
  • Outlander 650 2007-2021
  • Outlander 650 6x6 XT 2015-2018
  • Outlander 650 XT 2007-2010, 2012-2021
  • Outlander 650 XT-P 2010
  • Outlander 650 Xmr 2013-2021
  • Outlander 800 2007-2008
  • Outlander 800 XT 2007-2008
  • Outlander 800R 2009-2015
  • Outlander 800R XT 2009-2015
  • Outlander 800R XT-P 2010-2011, 2013-2015
  • Outlander 800R Xmr 2011-2012, 2015
  • Outlander 800R Xxc 2011
  • Outlander 850 2016-2020
  • Outlander 850 XT 2016-2020
  • Outlander 850 XT-P 2016-2020
  • Outlander 850 Xmr 2016-2020
  • Outlander L 450 2015-2016
  • Outlander L 500 2015
  • Outlander L MAX 500 2015
  • Outlander MAX 1000 2013-2015
  • Outlander MAX 1000 XT 2013-2015
  • Outlander MAX 1000 XT-P 2013-2015
  • Outlander MAX 1000R XT 2016-2018
  • Outlander MAX 1000R XT-P 2016-2019
  • Outlander MAX 400 2007-2008
  • Outlander MAX 400 EFI 2008-2014
  • Outlander MAX 400 EFI XT 2008-2014
  • Outlander MAX 400 XT 2007-2008
  • Outlander MAX 500 2007-2015
  • Outlander MAX 500 XT 2007-2015
  • Outlander MAX 500 XT-P 2010
  • Outlander MAX 570 2017-2021
  • Outlander MAX 570 XT 2017-2021
  • Outlander MAX 650 2007-2021
  • Outlander MAX 650 6x6 2019-2021
  • Outlander MAX 650 XT 2007-2021
  • Outlander MAX 650 XT-P 2010-2012, 2016-2017
  • Outlander MAX 800 2007-2008
  • Outlander MAX 800 XT 2007-2008
  • Outlander MAX 800R 2009-2014
  • Outlander MAX 800R XT 2009-2015
  • Outlander MAX 800R XT-P 2010-2015
  • Outlander MAX 850 XT 2016-2018, 2020
  • Outlander MAX 850 XT-P 2016-2020
  • Renegade 1000 2012-2015
  • Renegade 1000 Xxc 2012-2015
  • Renegade 1000R 2016-2019
  • Renegade 1000R Xmr 2016-2019
  • Renegade 1000R Xxc 2016-2019
  • Renegade 500 2008-2015
  • Renegade 800 2007-2008
  • Renegade 800 X 2008
  • Renegade 800R 2009-2015
  • Renegade 800R X 2009-2010
  • Renegade 800R Xxc 2010-2015
  • Renegade 850 2016-2020
  • Renegade 850 Xxc 2016-2019
Gas Gas
  • EC 125 2001-2011
  • EC 250 1997-2013
  • EC 250F 2011-2015
  • EC 450F 2013-2015
  • MC 125 2002-2009
Honda
  • ATC185 1980
  • ATC200E Big Red 1982-1983
  • ATC200ES Big Red 1984
  • ATC200M 1984-1985
  • ATC200S 1984-1986
  • ATC200X 1986-1987
  • CR125R 1992-2007
  • CR250R 2-Stroke 1986-2007
  • CR80R 1986-2002
  • CR80RB Expert 1996-2002
  • CR85R 2003-2007
  • CR85RB Expert 2003-2007
  • CRF250R 4-Stroke 2004-2017
  • CRF250X 4-Stroke 2004-2009, 2012-2017
  • CRF450R 2002-2022
  • CRF450RX 2017-2018
  • CRF450X 2005-2009, 2012-2017
  • CRF50F 2004-2009, 2011-2019
  • CRF70F 2004-2009, 2011-2012
  • MUV700 Big Red 2009-2013
  • SXS500M2 Pioneer 500 2015-2019
  • SXS700M2 Pioneer 700 2014-2017
  • SXS700M4 Pioneer 700-4 2014-2016
  • TRX200 FourTrax 200 2x4 1984
  • TRX200D FourTrax 200 2x4 1991-1997
  • TRX200SX FourTrax 200 2x4 1986-1988
  • TRX250 FourTrax Recon 2x4 1997-2001
  • TRX250EX Sportrax 250 2x4 2001-2008
  • TRX250TE FourTrax Recon 2x4 ES 2002-2014, 2016-2017
  • TRX250TM FourTrax Recon 2x4 2002-2009, 2011-2014, 2016-2017
  • TRX300 FourTrax 300 2x4 1988-2000
  • TRX300EX FourTrax 300EX 1993-2000, 2004-2007
  • TRX300EX Sportrax 300EX 2001-2003, 2008
  • TRX300FW FourTrax 300 4x4 1988, 1990-2000
  • TRX350FE FourTrax Rancher ES 4x4 2000-2006
  • TRX350FM FourTrax Rancher 4x4 2000-2006
  • TRX350TE FourTrax Rancher ES 2x4 2000-2006
  • TRX350TM FourTrax Rancher 2x4 2000-2006
  • TRX400EX FourTrax 400EX 1999
  • TRX400EX Sportrax 400EX 2000-2008
  • TRX400FA FourTrax Rancher AT 4x4 2004-2007
  • TRX400FGA FourTrax Rancher AT 4x4 GPScape 2004-2007
  • TRX400FW FourTrax Foreman 400 4x4 1995-2003
  • TRX400X Sportrax 400X 2012-2014
  • TRX420FA FourTrax Rancher AT 4x4 2009-2013
  • TRX420FA1 FourTrax Rancher AT DCT 4x4 2014-2016
  • TRX420FA2 FourTrax Rancher 4x4 Automatic DCT EPS 2014-2016
  • TRX420FA5 FourTrax Rancher 4x4 Automatic DCT IRS 2016
  • TRX420FA6 FourTrax Rancher 4x4 Automatic DCT IRS EPS 2016
  • TRX420FE FourTrax Rancher ES 4x4 2007-2013
  • TRX420FE1F FourTrax Rancher 4x4 ES 2014-2016
  • TRX420FM FourTrax Rancher 4x4 2007-2013
  • TRX420FM1 FourTrax Rancher 4x4 2014-2016
  • TRX420FM2 FourTrax Rancher 4x4 EPS 2014-2016
  • TRX420FPA FourTrax Rancher AT 4x4 EPS 2009-2013
  • TRX420FPE FourTrax Rancher ES 4x4 EPS 2009-2013
  • TRX420FPM FourTrax Rancher 4x4 EPS 2009-2013
  • TRX420TE FourTrax Rancher ES 2x4 2009-2013
  • TRX420TE1 FourTrax Rancher ES 2x4 2014-2016
  • TRX420TM FourTrax Rancher 2x4 2007-2013
  • TRX420TM1 FourTrax Rancher 2x4 2014-2018
  • TRX450ER Sportrax 450ER 2006-2014
  • TRX450FE FourTrax Foreman ES 4x4 2002-2004
  • TRX450FM FourTrax Foreman S 4x4 2002-2004
  • TRX450R Sportrax 450R 2004-2014
  • TRX500FA FourTrax Foreman Rubicon 4x4 2001-2009, 2011-2014
  • TRX500FA5 FourTrax Foreman Rubicon 4x4 Automatic DCT 2015-2019
  • TRX500FA6 FourTrax Foreman Rubicon 4x4 Automatic DCT EPS 2015-2019
  • TRX500FA6D FourTrax Foreman Rubicon EPS DCT Deluxe 2015
  • TRX500FA7 FourTrax Foreman Rubicon 4x4 Automatic DCT EPS Deluxe 2016-2019
  • TRX500FE FourTrax Foreman ES 4x4 2005-2009, 2011-2013
  • TRX500FE1 FourTrax Foreman ES 4x4 2014-2016
  • TRX500FE2 FourTrax Foreman ES 4x4 EPS 2014-2019
  • TRX500FGA FourTrax Foreman Rubicon GPScape 2004-2008
  • TRX500FM FourTrax Foreman 4x4 2005-2009, 2011-2013
  • TRX500FM1 FourTrax Foreman 4x4 2014-2019
  • TRX500FM2 FourTrax Foreman 4x4 EPS 2014-2016
  • TRX500FPA FourTrax Foreman Rubicon EPS 2012-2013
  • TRX500FPE FourTrax Foreman ES 4x4 EPS 2007-2009, 2011-2013
  • TRX500FPM FourTrax Foreman 4x4 EPS 2012-2013
  • TRX500TM FourTrax Foreman 2x4 2005-2006
  • TRX650FA FourTrax Rincon 2003-2005
  • TRX650FGA FourTrax Rincon GPScape 2004-2005
  • TRX680FA FourTrax Rincon 2006-2017
  • TRX680FGA FourTrax Rincon GPScape 2006-2009
  • TRX90 FourTrax 90 1993-2006
  • TRX90EX FourTrax 90 2007-2008
  • TRX90X FourTrax 90 2009, 2012-2016
  • XR200R 1992-2002
  • XR400R 1996-2004
  • XR50R 2000-2003
  • XR70R 1997-2003
  • Z50R 1979-1989, 1991-1999
Husaberg
  • FE 350 2013-2014
  • FE 450 2009-2012
  • FX 450 2010-2012
  • TE 300 2011-2014
Husqvarna
  • CR125 1997-2013
  • CR250 1999-2006
  • FC 250 2016-2022
  • FC 350 2014-2015
  • FE 350 2014-2016
  • SM125 1998-2000, 2009-2014
  • TC 125 2014-2022
  • TC 250 2014-2021
  • TC 85 2014-2018, 2020-2023
  • TE 125 2014-2016
  • TE 250 2014-2018
  • TE 300 2014-2018
  • TX 125 2018-2019
  • TX 300 2017-2019
  • WR125 1997-2013
  • WR250 1999-2013
  • WR300 2009-2010, 2012-2013
  • WRE125 1998, 2004-2005
KTM
  • 125 EXC 1994-2005
  • 125 SX 1994-2020
  • 125 XC-W 2017
  • 144 SX 2007-2008
  • 150 SX 2009-2015
  • 150 XC 2010-2014
  • 200 MXC 2003
  • 200 SX 2003-2005
  • 200 XC 2006-2009
  • 250 EXC 1990-1994, 1996-2005
  • 250 MXC 1998-2001
  • 250 SX 1992-1994, 1996-2016
  • 250 SX-F 2016-2020
  • 250 XC 2006-2019
  • 250 XC-F 2016-2020
  • 250 XC-W 2006-2018
  • 300 EXC 2004-2005
  • 300 MXC 2004-2005
  • 300 XC 2008-2019
  • 300 XC-W 2008-2018
  • 300 XC-W TPI 2019-2020
  • 350 EXC-F 2012-2016
  • 350 SX-F 2011-2015
  • 350 XC-F 2012-2015
  • 350 XCF-W 2012-2015
  • 450 EXC 2009-2011
  • 450 SX ATV 2009-2010
  • 450 SX-F 2007-2012
  • 450 XC-F 2008-2009
  • 50 Junior Adventure 2002-2003
  • 50 Mini Adventure 2002-2007
  • 50 SX 2007-2021
  • 50 SX Junior 2007-2009
  • 50 SX Mini 2008-2014
  • 50 SX Pro Junior LC 2002-2007
  • 50 SX Pro Senior LC 2001-2006
  • 50 Senior Adventure 2002-2007
  • 65 SX 1998-2021
  • 65 SXS 2012-2014
  • 65 XC 2008-2009
  • 85 SX 2003-2021
  • 85 SXS 2012-2014
  • 85 XC 2008-2009
Kawasaki
  • Bayou 220 2x4 1988-2002
  • Bayou 250 2x4 2003-2011
  • Bayou 300 2x4 1986-2004
  • Bayou 300 4x4 1989-2004
  • Brute Force 300 2x4 2012-2019
  • Brute Force 650 4x4 2005-2011, 2013
  • Brute Force 650 4x4i 2006-2009, 2011-2013
  • Brute Force 750 4x4i 2005-2019
  • Brute Force 750 4x4i EPS 2012-2014
  • KDX50 2003-2006
  • KFX400 2003-2006
  • KFX50 ATV 2003-2006
  • KFX700 V-Force 2004-2009
  • KFX80 ATV 2003-2006
  • KFX90 ATV 2007-2021
  • KLX400R 2003-2004
  • KLX400SR 2003-2004
  • KLX450R 2008-2009
  • KX100 1995-2009, 2011-2020
  • KX125 1998-2002, 2004-2005
  • KX250 2-Stroke 1992-2007
  • KX250 4-Stroke 2019
  • KX250F 4-Stroke 2004-2018
  • KX450F 2006-2008
  • KX60 1985-1988, 1990-2003
  • KX65 2000-2009, 2011-2020
  • KX80 1988-2000
  • KX80 Big Wheel 1988-1994
  • KX85 2001-2020
  • Lakota 300 2x4 1995-2003
  • Mojave 250 2x4 1987-2003
  • Mule 2500 1994-1995, 1997-2000
  • Mule 2510 4x4 1994-1995, 1997-2000
  • Mule 2520 1994-1995, 1997-2000
  • Mule 3000 2001-2008
  • Mule 3010 4x4 2001-2008
  • Mule 3010 Trans4x4 2005-2008
  • Mule 3020 2001-2003
  • Mule 4000 2009-2018
  • Mule 4010 4x4 2009-2018
  • Mule 4010 Trans4x4 2009-2018
  • Mule 600 2005-2016
  • Mule 610 4x4 2005-2016
  • Mule SX 2019
  • Prairie 300 2x4 1999-2002
  • Prairie 300 4x4 1999-2002
  • Prairie 360 2x4 2003-2009
  • Prairie 360 4x4 2003-2012
  • Prairie 650 4x4 2002-2003
  • Prairie 700 4x4 2004-2006
  • Teryx 750 4x4 2008-2013
  • Teryx 750 4x4 Sport 2009-2013
  • Teryx 800 4x4 2014-2019
Kymco
  • MXU 300 2005-2010
  • Mongoose 300 2006-2010
Polaris
  • 400L 2x4 1994-1995
  • 400L 4x4 1994
  • ACE 570 2015-2018
  • ACE 900 SP 2016-2018
  • ATP 330 4x4 2004-2005
  • ATP 500 4x4 2004-2005
  • Big Boss 250 4x6 1989-1992
  • Big Boss 250 6x6 1991-1992
  • Big Boss 500 6x6 1998-1999
  • General 1000 2016-2019
  • General 4 1000 2017-2019
  • Hawkeye 300 2x4 2006-2011
  • Hawkeye 400 H.O. 2x4 2011-2013
  • Magnum 325 2x4 2000-2002
  • Magnum 325 4x4 2000-2002
  • Magnum 330 2x4 2003-2005
  • Magnum 330 4x4 2003-2006
  • Magnum 500 2x4 2002
  • Magnum 500 4x4 1999-2002
  • Outlaw 50 2008-2019
  • Outlaw 500 2006-2007
  • Outlaw 90 2007-2014
  • Predator 50 2007
  • Predator 500 2003-2007
  • Predator 90 2003-2006
  • RZR 4 800 2010-2014
  • RZR 4 900 2015-2017
  • RZR 570 2012-2019
  • RZR 800 2008-2014
  • RZR 900 2015-2019
  • RZR 900 XC 2015-2017
  • RZR RS1 2018-2019
  • RZR S 1000 2016-2019
  • RZR S 800 2009-2014
  • RZR S 900 2015-2018
  • RZR XP 1000 2014-2019
  • RZR XP 4 1000 2014-2019
  • RZR XP 4 900 2012-2014
  • RZR XP 4 900 Jagged X 2013-2014
  • RZR XP 4 Turbo 2016-2019
  • RZR XP 900 2011-2014
  • RZR XP Turbo 2016-2019
  • Ranger 400 2x4 2004
  • Ranger 400 4x4 2010-2014
  • Ranger 500 2x4 2005-2008
  • Ranger 500 4x4 2004-2007
  • Ranger 570 2014-2019
  • Ranger 570 Full-Size 2015-2019
  • Ranger 700 4x4 2007-2009
  • Ranger 700 6x6 2006-2009
  • Ranger 800 2011, 2013-2014
  • Ranger 800 6x6 2010-2016
  • Ranger 800 EFI Mid-Size 2013-2014
  • Ranger Crew 700 2008-2009
  • Ranger Crew 800 2010-2014
  • Ranger Crew XP 1000 2017-2019
  • Ranger Crew XP 900 2017-2019
  • Ranger HD 700 2009
  • Ranger XP 1000 2017-2019
  • Ranger XP 700 2005-2009
  • Ranger XP 900 2013-2019
  • Scrambler 400 2x4 2000-2002
  • Scrambler 400 4x4 1995-1996, 1998-2000, 2002
  • Scrambler 400L 4x4 1997
  • Scrambler 500 2x4 2001-2002
  • Scrambler 500 4x4 1997-2012
  • Scrambler 850 2015-2019
  • Scrambler 90 2001-2003
  • Scrambler XP 1000 2014-2018
  • Scrambler XP 850 H.O. 2013-2015
  • Sport 400L 1994-1998
  • Sportsman 300 2008-2010
  • Sportsman 400 2001-2005, 2008-2014
  • Sportsman 450 2006-2007, 2016-2019
  • Sportsman 500 4x4 1996-2000
  • Sportsman 500 6x6 2000-2008
  • Sportsman 500 EFI 2006-2009
  • Sportsman 500 H.O. 2001-2003, 2005-2006, 2008-2013
  • Sportsman 550 2010-2014
  • Sportsman 570 2014-2019
  • Sportsman 570 6x6 2018-2019
  • Sportsman 570 Forest Tractor 2014-2017
  • Sportsman 570 HD 2014-2017
  • Sportsman 570 SP 2015-2019
  • Sportsman 700 2002-2006
  • Sportsman 700 EFI 2004-2007
  • Sportsman 800 Big Boss 6x6 2009-2014
  • Sportsman 800 EFI 2005-2014
  • Sportsman 800 Forest Tractor 2012-2013
  • Sportsman 800 Forest Tractor 6x6 2012-2015
  • Sportsman 850 2015-2019
  • Sportsman 850 Forest Tractor 2011-2013
  • Sportsman 850 SP 2015-2019
  • Sportsman 90 2001-2014
  • Sportsman MV 700 2005
  • Sportsman Touring 500 2008-2013
  • Sportsman Touring 550 2010-2012, 2014
  • Sportsman Touring 800 EFI 2008-2009
  • Sportsman X2 500 EFI 2006-2009
  • Sportsman X2 550 2010-2014
  • Sportsman X2 700 EFI 2008
  • Sportsman X2 800 EFI 2007-2009
  • Sportsman XP 1000 2015-2018
  • Sportsman XP 1000 Touring 2015-2019
  • Sportsman XP 550 2009
  • Trail Blazer 250 1990-2006
  • Trail Blazer 330 2008-2013
  • Trail Blazer 400 2003
  • Trail Boss 250 2x4 1991-1999
  • Trail Boss 325 2000-2002
  • Trail Boss 330 2003-2013
  • Trail Boss 350L 2x4 1990-1993
  • Trail Boss 350L 4x4 1990-1992
  • Xpedition 325 2000-2002
  • Xplorer 250 2000-2002
  • Xplorer 300 1996-1999
  • Xplorer 400L 1996-1998
  • Xplorer 500 1997
  • Xpress 300 1996-1999
Suzuki
  • DR-Z400 2000-2004
  • DR-Z400E 2000-2007
  • DR-Z400S 2000-2009, 2011-2019
  • DR-Z400SM 2005-2009, 2013-2019
  • JR50 1978-2006
  • LT-4WD QuadRunner 250 1987-1994, 1996-1998
  • LT-A400 Eiger 400 Auto 2x4 2002-2007
  • LT-A400F Eiger 400 Auto 4x4 2002-2007
  • LT-A400F KingQuad 400 AS 4x4 2008-2009
  • LT-A400F KingQuad 400 ASi 4x4 2011-2016
  • LT-A500F QuadMaster 500 4x4 2000-2001
  • LT-A500F Vinson 500 Auto 4x4 2002-2007
  • LT-A500X KingQuad 500 AXi 4x4 2009-2014, 2016-2018
  • LT-A700X KingQuad 700 4x4 2005-2007
  • LT-A750X KingQuad 750 AXi 4x4 2008-2009, 2011-2016
  • LT-F250 Ozark 250 2002-2014
  • LT-F250 QuadRunner 250 2x4 1988-2001
  • LT-F300F KingQuad 300 4x4 1999-2002
  • LT-F400 Eiger 400 2x4 2002-2007
  • LT-F400F Eiger 400 4x4 2002-2007
  • LT-F400F KingQuad 400 FSi 4x4 2011-2016
  • LT-F4WDX KingQuad 300 1991-1998
  • LT-F500F QuadRunner 500 4x4 1998-2002
  • LT-F500F Vinson 500 4x4 2003-2007
  • LT-V700F Twin Peaks 700 4x4 2004-2005
  • LT-Z250 QuadSport 250 2004-2009
  • LT-Z400 QuadSport 400 2003-2014
  • LT230E QuadRunner 230 1987-1993
  • LT50 QuadRunner 50 1984-1987
  • LT80 QuadSport 80 1987-2006
  • RM-Z250 2004-2024
  • RM-Z450 2005-2013
  • RM100 2003
  • RM125 1989-2008
  • RM250 1989-1995, 1998, 2000-2008
  • RM60 2003
  • RM65 2003-2005
  • RM80 1991-2001
  • RM85 2002-2010, 2012, 2015-2021
  • RM85L 2003-2008, 2012
  • RMX450Z 2010-2011, 2017
Yamaha
  • BW80 Big Wheel 1986-1988, 1990
  • Bear Tracker 2x4 1999-2004
  • Big Bear 250 2007-2009
  • Big Bear 350 2x4 1996-1999
  • Big Bear 350 4x4 1987-1999
  • Big Bear 400 2x4 2000-2004
  • Big Bear 400 4x4 2000-2006
  • Big Bear 400 4x4 IRS 2007-2010
  • Bruin 250 2x4 2005-2006
  • Bruin 350 4x4 2004-2006
  • Bruin 350 Auto 2x4 2004-2006
  • Grizzly 125 2004-2013
  • Grizzly 350 2x4 2007-2011
  • Grizzly 350 4x4 2007-2014
  • Grizzly 350 4x4 IRS 2007-2011
  • Grizzly 400 4x4 2007-2008
  • Grizzly 450 4x4 2007-2014
  • Grizzly 600 4x4 1998-2001
  • Grizzly 660 4x4 2002-2008
  • Grizzly 700 4x4 2007-2019
  • Grizzly 80 2005-2008
  • Kodiak 400 2x4 2000-2001, 2003-2004
  • Kodiak 400 4x4 1993-2006
  • Kodiak 450 4x4 2003-2006
  • Kodiak 700 4x4 2016-2018
  • PW50 Y-Zinger 1981-1983, 1985-1987, 1990-2009, 2012-2015
  • PW80 Y-Zinger 1983, 1985, 1991-2006
  • Raptor 350 2004-2013
  • Raptor 660R 2001-2005
  • Raptor 700 2013-2016
  • Raptor 700R 2006-2023
  • Raptor 80 2002-2008
  • Rhino 450 4x4 2006-2009
  • Rhino 660 4x4 2004-2007
  • Rhino 700 FI 4x4 2008-2009, 2011-2013
  • WR250F 2001-2013, 2015-2019
  • WR250Z 1992-1997
  • WR450F 2003-2020
  • Wolverine 350 2x4 2006-2009
  • Wolverine 350 4x4 1995-2005
  • Wolverine 450 4x4 2006-2010
  • XT600 1984-1989
  • XT600E 1990-1995
  • YFA1 Breeze 1989, 1991-2004
  • YFB250 Timberwolf 2x4 1992-1996
  • YFB250FW Timberwolf 4x4 1994-1995, 1997-2000
  • YFB250U Timberwolf 2x4 1996-1998
  • YFM350ER Moto-4 1987-1990, 1992-1995
  • YFM350X Warrior 1987-2004
  • YFM80 Badger 1992-2001
  • YFS200 Blaster 1988-2006
  • YFZ350 Banshee 1987-2006
  • YFZ450 ATV 2004-2009, 2012-2013
  • YFZ450R ATV 2009-2023
  • YFZ450X ATV 2010-2011
  • YXE70 Wolverine 2016-2018
  • YXE70 Wolverine R-Spec 2016-2018
  • YXM7D Viking 700 2014-2021
  • YZ125 1997-2021
  • YZ125X 2020-2022
  • YZ250 2-Stroke 1992-2022
  • YZ250F 4-Stroke 2001-2018
  • YZ250FX 4-Stroke 2015-2019
  • YZ250X 2-Stroke 2016-2022
  • YZ450F 2003-2017
  • YZ450FX 2016-2020
  • YZ65 2018-2024
  • YZ80 1993-2001
  • YZ85 2002-2021

Customer Reviews

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Quality Kit

By   on  Verified Purchaser

Ring end gap is perfect as per Honda spec. Piston is forged. Came with complete quality top end gasket set. Fit is perfect. Saved a substantial amount going with this forged kit as opposed to the W brand.


Top end build

By   on  Verified Purchaser

Just finished the build today all the parts fit great and the engine run great, well pleased with the parts.


Excellent product

By   on  Verified Purchaser

Excellent product, all components needed for top end overhaul were in the packaging.


Was very impressed

By   on  Verified Purchaser

Was very impressed with this whole kit absolutely every piece of it! Worth WAY more than what was paid in my opinion! Already have plans to order same kit for my old 300ex and my nephews xr100!


Piston kit

By   on  Verified Purchaser

Reasonable price. Everything was exactly as described. Would not hesitate to use again.


Namura

By   on  Verified Purchaser

Worked great


Great

By   on  Verified Purchaser

Product was great quality and fit perfect.


Great fit

By   on  Verified Purchaser

Product was exactly what I needed, good quality, great fit, excellent packaging.


Definitely recommend

By   on  Verified Purchaser

The parts are quality.


Namura complete gasket kit

By   on  Verified Purchaser

Great gasket kit, awesome quality. Will use again highly recommended for all applications A++


Top notch

By   on  Verified Purchaser

Great quality. Bike is running fantastic again couldn't ask for more.


500+ hours

By   on 

I have about 500 hours on a fresh rebuild using a Namura piston. Cylinder was replated so probably helped but it was rode hard overheated a few times and 2+ years later it got hot and is low on power.


Good fitment

By   on  Verified Purchaser

Everything fit like it should. Will be using daily on an upcoming hunting trip which will tell the tale.


Namura Piston Kit

By   on  Verified Purchaser

Good kit.


Product is beautiful

By   on  Verified Purchaser

Fit and finish of the product is beautiful. Nothing put up a fight. And they're high quality parts. Only thing left is to see how they hold up over time.


Super satisfied

By   on  Verified Purchaser

Super satisfied. Great price. Fit perfect and the machine runs like new.


Great parts

By   on  Verified Purchaser

Great parts. If you haven't seen the quality in their pistons order one, you won't be disappointed.


On the trail again, let's ride!

By   on  Verified Purchaser

Works excellent great quality very reasonably priced, would highly recommend. I will personally be buyer again whenever I need to do a rebuild.


Great results!

By   on  Verified Purchaser

I had ordered from another "cheaper" company and was so confused I ordered the wrong item ! When I ordered from parts giant there was no doubt I would receive what I needed! The parts fit perfectly and the sxs is up and running again!


Piston Ring Set

By   on  Verified Purchaser

This is my first experience using Namura piston/ring sets. They look like good quality units at a great price. . My RZR 4 800 is running great! The only down side is wrist pin cir clips and installation. I think the clips should have an automotive style snap ring.


Buy this

By   on  Verified Purchaser

Exact fit. Running like new.


Best piston ever

By   on  Verified Purchaser

I had installed pistons before but the quality of Namura and performance is above all.


Namura Piston Kit

By   on  Verified Purchaser

Top notch company and part.


Part

By   on  Verified Purchaser

Excellent


Namura Piston

By   on  Verified Purchaser

Great product. Easy install and smooth!


Good quality and cheap

By   on  Verified Purchaser

Don’t know about long term how it’s gonna do but I bought for my sons 2003 raptor80 that I just got him. It had never had the oil changed so the piston and rings were destroyed in it. Took some 60 grit sand paper to the cylinder wall and dremel to the rod for the wrist pin to go back in but for now it’s working


Namura top end Repair

By   on  Verified Purchaser

Worked great, got it running last night. It sounds like it has a lot of power, still putting it together, will know how much at a later date.


Overbore. Very pleased with top end parts

By   on  Verified Purchaser

Great service and great product.


Namura Piston Kit

By   on  Verified Purchaser

Kit was as expected. In the future the kit should come with Valve guide seals. Other brands of complete gaskets set include them.


Running strong

By   on  Verified Purchaser

Put quiet a bit of stress on the piston. It's a great piston! Rebuilt my engine from the crank bearing, rod, piston and it's running strong!


Namura Top End Kit

By   on  Verified Purchaser

Parts were exactly as described. I would order them again.


I would highly recommend in using this overhaul kit.

By   on  Verified Purchaser

A very good quality part at a good price.


Excellent

By   on  Verified Purchaser

Great product and deal, used Namura before and have always been very satisfied. Thanks


Better than expected

By   on  Verified Purchaser

Much better than factory! Quality materials great design. Rings, gaskets, piston, and wrist pin are in place and running. You won't be disappointed if your doing a top end rebuild and want a touch of a upgrade.


Great Buy

By   on  Verified Purchaser

I didn't notice it was a +1mm kit so thats my fault. But it came faster than predicted for sure. Shipping was quick the parts are pristine. Didn't know this either but the Namura pistons are now forged? Never used to be. So that's also a plus. Also this whole kit was also cheaper than just a Wiseco forged piston by itself. Would've been a great buy for me if i had read a little bit more into the +1mm.


Namura Top End Kit

By   on  Verified Purchaser

Best price. They last long to and come with all gaskets, even with valve stem seals.


Good

By   on  Verified Purchaser

Good price. I had it in my engine for 80 hrs then I rebuilt again with no signs of wear.


Namura Piston Kit

By   on  Verified Purchaser

Great product


Installed on 2002 kx 125

By   on  Verified Purchaser

Rings failed after 10 mins of idling with minor rips on the throttle. 40lbs on compression test.


Namura Piston

By   on  Verified Purchaser

Perfect


So far so good!

By   on  Verified Purchaser

So far so good. Easy install. Everything needed is there. Runs like a champ so far! Meets all my expectations for a rebuild!


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Questions & Answers

Ask Question

Does this part fit a viking 2016 700

Yes, looks like there is a kit offered for that 2016 Yamaha Viking 700. Just be sure to select that year/make/model before adding to your cart.

By Andy
Answer Question

Do you have a kit for a 2000 kx 125

Yes, you would just need to select that 2000 Kawasaki KX125 when adding to your cart.

By Andy
Answer Question

2006 kodiak 450 says stock bore is 84mm will this fit stock with no modification

From what I can see, the stock bore size of that 2006 Kodiak 450 is 84.5. You would want to select the 84.45mm kit for stock bore size cylinder.

By Andy
Answer Question

Just to clarify for a 2014 razor 800s does it come with just 1 or does it come with both pistons for $180

This would be a complete kit to rebuild top end of that RZR S 800. You would have both piston assemblies along with required gaskets/seals.

By Andy
Answer Question

will it fit a 2007 rm85 big wheel

Yes, that kit is designed to fit that 2007 Suzuki RM85L.

By Andy
Answer Question

Will this kit for my stock 2015 Polaris sportsman 850sp

If you were to choose the 2015 Polaris Sportsman 850 SP piston kit from our fit guide, yes, you'd receive the correct piston to fit your machine.

By Staff
Answer Question

Will this fit a Honda FourTrax 300 4x4 1997?

Yes, if you were to selecting the 1997 Honda TRX300FW FourTrax 300 4x4 piston repair kit from our fit guide, you'd receive the correct components to fit your machine. We have them available in stock, and overized bore kits should you want to bore-out the OEM cylinder and get some more power out of your TRX!

By Staff
Answer Question

This kit for the 2018 sportsman 850 does it come with pistons and rings for both cylinders and gaskets?

Yes, there are indeed two pistons, rings &etc. included with the kit. In fact, all Namura top end kits are sold per-machine, that is you only need to purchase a quantity of one to service any machine you select from our fit guide.

By Staff
Answer Question

What is the compression ratio of this product for a polaris predator 500

Namura top end repair kits include pistons built to stock specifications. For the Predator 500, the compression ratio would remain factory at 10.8:1.

By Staff
Answer Question

Will this piston fit my 43mm std bore and will I have modified anything

1985 kawasaki kx60

No modification would be necessary to install the kit provided you select the exact size you need. I would suggest measuring your cylinder bore to verify which piston size would give you the best piston to cylinder clearance. For the 1985 Kawasaki KX60 Namura offers three piston choices for these kits; 42.95, 42.96 and 42.97. The stock cylinder is plated, provided your plating is in tact it would not need to be plated to match.

By Staff
Answer Question

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