Wiseco Piston Kit

Wiseco piston kit contain everything you need to complete your rebuild the right way, the first time. High-quality parts specifically chosen to match Wiseco forged piston that's included in this kit.

2-stroke kit features Wiseco piston that is CNC machined for optimal cam shape and profile for peak power and long service life
4-stroke kit feature a race-ready finish with smooth edges for improved combustion flow
Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing
Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal
Complete top end gasket kit gives you everything you need to complete your rebuild from premium materials
Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy
High-performance ring kit and alloy pin included with each piston kit for extended life and sustained power
Made in the USA

Specification	Details
Bore	Varies (make selection above)
Compression Ratio	Varies (make selection above)
Country of Origin	USA
Displacement	Varies (make selection above)
Engine Type	Varies (make selection above)
Finish	Varies (make selection above)
Material	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 Over Standard	Varies (make selection above)
Stroke	Varies (make selection above)
Volume	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.

250 4x4 2001-2005
650 V2 4x4 Auto 2004-2006
CF6 EFI 2009-2011
CF8 2010-2011
F6 2007-2008
F6 Sno Pro 2009-2011
F8 2009-2010
M 800 2012-2013
M 8000 2014-2017
M8 2010-2011
XF 8000 Crosstour 2014-2015
XF 8000 High Country 2015-2016
ZR 8000 2014-2017
ZR 8000 LXR 2014-2015
ZR 8000 Sno Pro 2014-2015

S 1000 R Naked 2014
S 1000 RR 2010-2014
S 1000 RR HP4 2013-2014

EX 250F 2021-2022
MC 250F 2021-2022

FLD Dyna Switchback 2012-2016
FLHR Road King 1999-2016
FLHRC Road King Classic 2007-2013
FLHRCI Road King Classic 1999-2006
FLHRI Road King 1999-2006
FLHRS Road King Custom 2004-2007
FLHRSI Road King Custom 2004-2006
FLHT Electra Glide Standard 1999-2009
FLHTC Electra Glide Classic 1999-2005, 2007-2013
FLHTCI Electra Glide Classic 1999-2006
FLHTCU Ultra Classic Electra Glide 1999-2014
FLHTCUI Ultra Classic Electra Glide 1999-2006
FLHTCUL Electra Glide Ultra Classic Low 2015-2016
FLHTCUTG Tri Glide Ultra Classic 2009-2014
FLHTI Electra Glide Standard 2003-2006
FLHTK Electra Glide Ultra Limited 2010-2014
FLHX Street Glide 2006-2016
FLHXI Street Glide 2006
FLHXS Street Glide Special 2014-2016
FLHXXX Street Glide Trike 2010-2011
FLRT Freewheeler 2015-2016
FLS Softail Slim 2012-2017
FLSS Softail Slim S 2016-2017
FLST Heritage Softail 2006
FLSTC Heritage Softail Classic 2000-2014
FLSTCI Heritage Softail Classic 2001-2006
FLSTF Softail Fat Boy 2000-2014
FLSTFB Softail Fat Boy Lo 2010-2016
FLSTFBS Softail Fat Boy S 2016-2017
FLSTFI Softail Fat Boy 2001-2006
FLSTI Heritage Softail 2006
FLSTN Softail Deluxe 2005-2014
FLSTNI Softail Deluxe 2005-2006
FLSTS Heritage Springer Softail 2000-2003
FLSTSB Softail Cross Bones 2008-2011
FLSTSC Softail Springer Classic 2005-2007
FLSTSCI Softail Springer Classic 2005-2006
FLSTSI Heritage Springer Softail 2001-2003
FLTR Road Glide 1999-2004, 2007-2009
FLTRI Road Glide 2000-2006
FLTRU Road Glide Ultra 2011-2013
FLTRX Road Glide Custom 2010-2013
FLTRXS Road Glide Special 2015-2016
FXCW Softail Rocker 2008-2009
FXCWC Softail Rocker C 2008-2011
FXD Dyna Super Glide 1999-2005, 2007-2010
FXDB Dyna Street Bob 2007-2017
FXDBI Dyna Street Bob 2006
FXDBP Dyna Street Bob Custom 2013-2014
FXDC Dyna Super Glide Custom 2005, 2007-2014
FXDCI Dyna Super Glide Custom 2005-2006
FXDF Dyna Fat Bob 2008-2017
FXDI Dyna Super Glide 2004-2006
FXDI35 35th Anniversary Dyna Super Glide 2006
FXDL Dyna Low Rider 1999-2005, 2007-2009, 2014
FXDLI Dyna Low Rider 2004-2006
FXDLS Dyna Low Rider S 2016-2017
FXDS-CONV Dyna Convertible 1999-2000
FXDWG Dyna Wide Glide 1999-2005, 2007-2008, 2010-2014
FXDWGI Dyna Wide Glide 2004-2006
FXDX Dyna Super Glide Sport 1999-2005
FXDXI Dyna Super Glide Sport 2004-2005
FXDXT Dyna Super Glide T-Sport 2001-2003
FXS Softail Blackline 2011-2013
FXSB Softail Breakout 2013-2017
FXST Softail Standard 2000-2009
FXSTB Softail Night Train 2000-2009
FXSTBI Softail Night Train 2001-2006
FXSTC Softail Custom 2007-2010
FXSTD Softail Deuce 2000-2007
FXSTDI Softail Deuce 2001-2006
FXSTI Softail Standard 2001-2006
FXSTS Springer Softail 2000-2006
FXSTSI Springer Softail 2001-2006

ATC185 1980
ATC185S 1981-1983
ATC200 1981-1983
ATC200E Big Red 1982-1983
ATC200ES Big Red 1984
ATC200M 1984-1985
ATC200S 1984-1986
ATC200X 1983-1985
ATC350X 1985-1986
CB500F 2013-2018
CB500F ABS 2013-2018
CB500X 2013-2018
CB500X ABS 2013-2018
CB750C 750 Custom 1980-1982
CB750F 750 Super Sport 1975-1982
CB750K 750 Four 1969-1982
CB750L Limited 1979
CB750SC Nighthawk 750 1982
CBR500R 2013-2018
CBR500R ABS 2013-2018
CBR600RR 2007-2024
CBR600RR ABS 2010-2024
CMX500 Rebel 500 2017-2018
CMX500 Rebel 500 ABS 2017-2018
CR250R 2-Stroke 2005-2007
CR480R 1982-1983
CR500R 1984
CRF100F 2004-2009, 2011-2013
CRF150R 2007-2009, 2013-2021
CRF150R Expert 2007-2009
CRF250R 4-Stroke 2004-2007, 2010-2019
CRF250X 4-Stroke 2004-2009, 2012-2017
CRF450R 2002-2016
CRF450X 2005-2009, 2012-2017
CRF50F 2004-2009, 2011-2019
CRF70F 2004-2009, 2011-2012
CRF80F 2004-2009, 2011-2013
TRX200 FourTrax 200 2x4 1984
TRX250EX Sportrax 250 2x4 2001-2008
TRX250X FourTrax 250X 1987-1988, 1991-1992
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
TRX350 FourTrax 350 4x4 1986-1987
TRX350D FourTrax Foreman 4x4 1987-1989
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
TRX400X Sportrax 400X 2009, 2012-2014
TRX450ER Sportrax 450ER 2006-2009, 2012-2014
TRX450ES FourTrax Foreman ES 4x4 1998-2001
TRX450FE FourTrax Foreman ES 4x4 2002-2004
TRX450FM FourTrax Foreman S 4x4 2002-2004
TRX450R Sportrax 450R 2004-2009, 2012
TRX450S FourTrax Foreman S 4x4 1998-2001
XL100S 1979-1985
XR100 1981-1984
XR100R 1985-2003
XR185 1979
XR200 1980-1983
XR200R 1981-1983, 1986-2002
XR250L 1991-1996
XR250R 1986-2004
XR400R 1996-2004
XR50R 2000-2003
XR650L 1993-2020
XR70R 1997-2003
XR80 1979-1984
XR80R 1985-1988, 1990-1991, 1993-2003

FE 250 2014
FE 350 2013-2014
FE 450 2013-2014
FE 501 2013-2014
TE 300 2013-2014

FC 250 2014-2022
FC 350 2014-2015
FC 450 2014-2016
FE 250 2014-2022
FE 350 2014-2016
FE 450 2014-2016
FE 501 2014-2016
FS 450 2015
TC 85 2014-2017
TE 300 2014-2016

105 SX 2004, 2006-2011
125 SX 2001
250 EXC-F 2015
250 SX-F 2006-2022
250 XC-F 2007-2014, 2016-2022
250 XCF-W 2006-2014
300 EXC 2005, 2015
300 MXC 2005
300 XC 2006-2016
300 XC-W 2006-2016
350 EXC-F 2012-2016
350 SX-F 2011-2015
350 XC-F 2012-2016
350 XCF-W 2012-2015
450 EXC 2007
450 EXC-G Racing 2003-2006
450 EXC-R 2007
450 MXC-G Racing 2003-2005
450 SX-F 2013-2015
450 XC ATV 2008-2009
450 XC-F 2013-2016
450 XC-W 2007, 2012-2016
500 EXC 2012-2016
500 XC-W 2012-2016
520 EXC-G Racing 2002
520 SX Racing 2000-2002
525 EXC 2007
525 EXC-G Racing 2003-2006
525 SX 2006
525 SX Racing 2003-2005
525 XC ATV 2008-2009
65 SX 1999-2008
65 XC 2008
85 SX 2003-2017
85 XC 2008-2009

Bayou 220 2x4 1988-2002
Bayou 300 2x4 1986-2003
Bayou 300 4x4 1989-2003
Brute Force 650 4x4 2005-2010
Brute Force 650 4x4i 2006-2009
Brute Force 750 4x4i 2005-2011
GPz 1100 1995-1997
GPz 750 1982-1985
KDX250 1983-1984
KDX50 2003-2006
KFX400 2003-2006
KFX450R 2008-2014
KFX50 ATV 2003-2006
KFX700 V-Force 2004-2009
KFX80 ATV 2003-2006
KLR250 1987-2005
KLX400R 2003
KLX450R 2008-2009
KX100 1995-2009, 2011-2021
KX250 2-Stroke 1983-1984
KX250 4-Stroke 2019
KX250F 4-Stroke 2004-2009, 2011-2018
KX450F 2006-2014
KX500 1991-2004
KX60 1983-1988, 1990-2003
KX65 2000-2021
KX85 2001-2021
KZ1000A 1977-1978
KZ1000A MKII 1979-1980
KZ1000B 1000 LTD 1977-1980
KZ1000C Police 1000 1978-1980
KZ1000D Z1R 1978, 1980
KZ1000E 1000 Shaft 1979-1980
KZ1000G Z1 Classic 1980
KZ1000J 1000 Standard 1981-1983
KZ1000R Eddie Lawson Replica 1982-1983
KZ650B 1977-1979
KZ650C Custom 1977-1979
KZ650D SR 1978-1979
KZ650E LTD 1980
KZ650F Custom 1980
KZ650H CSR 1981-1983
KZ750E Standard-4 1980-1982
KZ750F LTD Shaft 1983
KZ750G LTD Twin 1980
KZ750H LTD-4 1980-1983
KZ750K LTD Belt 1983-1984
KZ750L Sports 1983
KZ750M CSR Twin 1982
KZ750N Spectre 1982-1983
KZ900A 1976-1977
KZ900B LTD 1976
Lakota 300 2x4 1995-2003
Mojave 250 2x4 1987-2004
Ninja ZX-11 1990-2001
Ninja ZX-14R 2006-2018
Ninja ZX-14R ABS 2013-2015
Ninja ZX-6R 2007-2018
Ninja ZX-6R ABS 2013-2018
Prairie 300 2x4 1999-2002
Prairie 300 4x4 1999-2002
Prairie 650 4x4 2002-2003
Prairie 700 4x4 2004-2006
Teryx 750 4x4 2008
Z1 900 Super Four 1973-1975
ZRX1100 1999-2000

700 Classic 2006
700 Dragon 2007
700 Fusion 2006
700 RMK 2005-2006, 2008-2010
700 Touring 2006
800 RMK 2010-2014
800 RMK Assault 2010
800 RMK Dragon 2010
800 Rush 2013
900 Fusion 2005-2006
900 RMK 2005-2006
900 Switchback 2005-2006
ATP 500 4x4 2004-2005
Big Boss 500 6x6 1998
Magnum 500 2x4 2002
Magnum 500 4x4 1999-2002
Outlaw 500 2006-2007
Outlaw 525 2007
Outlaw 525 IRS 2008-2011
Outlaw 525 S 2008-2010
Predator 500 2003-2007
RZR 4 800 2012
RZR 800 2008-2014
RZR S 800 2009-2010
Ranger 500 2x4 2004-2009
Ranger 500 4x4 2004-2007
Ranger 500 4x4 EFI 2006-2007
Ranger 500 6x6 2004-2005
Scrambler 250 1985-1986
Scrambler 400 4x4 1995-1996, 1998-2000, 2002
Scrambler 400L 4x4 1997
Scrambler 500 2x4 2001-2002, 2007-2009
Scrambler 500 4x4 1997-2012
Sport 400 1999
Sport 400L 1994-1998
Sportsman 400 1994-1997, 2001-2003
Sportsman 500 4x4 1996-2006
Sportsman 500 6x6 2000-2008
Sportsman 500 EFI 2006-2008
Sportsman 500 Forest Tractor 2010-2012
Sportsman 500 H.O. 2001-2003, 2005-2006, 2008
Sportsman 800 Big Boss 6x6 2012
Sportsman 800 EFI 2005-2008, 2011-2012
Sportsman MV 800 2007
Sportsman Touring 500 2008-2009
Sportsman Touring 800 EFI 2008-2009
Storm 1994-1998
Storm RMK 1996-1997
Storm SKS 1994-1996
Trail Blazer 250 1990-2006
Trail Blazer 250 ES 1996
Trail Blazer 400 2003
Trail Boss 250 2x4 1986-1999
Trail Boss 250 4x4 1987-1992
Trail Boss 250 ES 1988
Trail Boss 250 R 1988
Trail Boss 350L 2x4 1990-1993
Trail Boss 350L 4x4 1990-1992
Xplorer 400 1995, 1999-2002
Xplorer 400L 1996-1998
Xplorer 500 1997

Expedition 1200 2010-2016
Expedition Sport 550 2005-2008
Formula MX 1990-1995
Formula MX LT 1990
Formula MX XTC 1991
Formula MX XTC R 1992-1993
Formula MX Z 1993-1994
Formula SS 1985
Formula ST 1994
Freeride 800R 2012-2017
Freestyle Backcountry 2007-2008
Freestyle Park 2007-2008
Freestyle Session 550 2007
GSX 1200 2009-2015
GTX 1200 2009
GTX 380 Fan 2005-2006
GTX 550 Fan 2005-2008
Grand Touring 1200 2010-2016
Grand Touring 550 Fan 2003
Legend 550 Fan 2004
MXZ 1200 2009-2016
MXZ 600 2009-2017
MXZ 800R 2008-2016
MXZ Adrenaline 1200 2010
MXZ Adrenaline 800 2007
MXZ Adrenaline 800R 2008
MXZ Blizzard 1200 2016
MXZ Renegade 1000 2007
MXZ Renegade 1200 2009
MXZ Renegade 800 2007
MXZ Renegade 800R 2008
MXZ TNT 1200 2009-2016
MXZ TNT 800R 2012-2014
MXZ TNT 800R Power T.E.K. 2011
MXZ X-RS 600 2010
Mach Z Adrenaline 2005
Mach Z Adrenaline 1000 2006-2007
Renegade 1200 2010-2016
Renegade 800R 2012-2016
Renegade Adrenaline 1200 2010-2014, 2016
Renegade Adrenaline 800R E-TEC 2012-2016
Renegade Adrenaline 800R Power T.E.K. 2010-2011
Renegade Backcountry 800R E-TEC 2012-2017
Renegade Backcountry 800R Power T.E.K. 2010-2011
Renegade Enduro 1200 2016
Renegade Enduro 800R 2016-2018
Renegade X-RS 800R 2015-2017
Safari GLX 1990
Skandic SUV 550 2004-2008
Skandic SWT 550 2004-2008
Skandic Tundra LT 550 2008
Skandic WT 550 2004-2008
Summit 550 Fan 2003-2008
Summit 800R 2008-2017
Summit Everest 800R Power T.E.K. 2008-2011
Summit Highmark 1000 2005-2007
Summit X-RS 800R 2007
Tundra 550 2012-2013

DR-Z400 2000-2004
DR-Z400S 2000-2009, 2011-2021
DR-Z400SM 2005-2009, 2013-2021
DR350 1990-1999
GS1000 1978-1979
GS1000E 1980
GS1000G 1980-1981
GS1000GL 1980-1981
GS1000L 1979
GS1000S Katana 1979-1980
GS750 1977-1979
GS750L 1979
GSX-R1100 1989-1992
GSX-R750 1986-1987
GSX1100F Katana 1100 1988-1992
GSX1300R Hayabusa 1999-2007
JR50 1978-2006
LT-4WD QuadRunner 250 1987-1995
LT-F250 QuadRunner 250 2x4 1989-1996
LT-R450 QuadRacer 450 2006-2011
LT-V700F Twin Peaks 700 4x4 2004-2005
LT-Z400 QuadSport 400 2003-2009, 2012-2014
LT230S QuadSport 230 1985-1988
LT250R QuadRacer 250 1985-1986
LT50 QuadRunner 50 1984-1987
LT80 QuadSport 80 1987-2006
RM-Z250 2004-2018
RM-Z450 2005-2025
RM100 2003
RM250 2001-2008
RM60 2003
RM65 2003-2005
RM80 1991-2001
RMX450Z 2010-2011, 2017-2019

America 2002-2007
Bonneville T100 2002-2007
Speedmaster 2003

Apex 2006-2008, 2010
Apex GT 2008-2010
Apex L-TX 2008
Attak 2006-2007
BW80 Big Wheel 1986-1988, 1990
Bear Tracker 2x4 2000-2004
Big Bear 250 2007-2009
Big Bear 350 4x4 1989-1999
Big Bear 400 2x4 2000-2004
Big Bear 400 4x4 2000-2005
FZR1000 1989-1995
Grizzly 600 4x4 1998-2001
Grizzly 660 4x4 2002-2008
Grizzly 700 4x4 2007-2011
Grizzly 80 2005-2008
Kodiak 400 4x4 1993-1999
Nytro 2006
PW50 Y-Zinger 1981-1983, 1985-1987, 1990-2022
PW80 Y-Zinger 1991-2006
RS Rage 2005-2007
RS Vector 2005-2007
RX Warrior 2004-2005
RX-1 2003-2005
RX-1 Mountain 2003-2005
Raptor 350 2005-2013
Raptor 660R 2001-2005
Raptor 700 2013-2014
Raptor 700R 2006-2014
Raptor 80 2002-2008
Rhino 660 4x4 2005-2007
Rhino 700 FI 4x4 2008-2009
SS440 1980-1985
TT-R125 2000-2005
WR250F 2001-2013, 2015-2019
WR426F 2001-2002
WR450F 2003-2018
YFB250 Timberwolf 2x4 1992-1996
YFB250FW Timberwolf 4x4 1994-1995, 1997-2000
YFM350X Warrior 1987-2004
YFM80 Badger 1992-2001
YFZ450 ATV 2004-2009
YZ250F 4-Stroke 2001-2018
YZ250FX 4-Stroke 2015-2019
YZ426F 2000-2002
YZ450F 2003-2019
YZ450FX 2016-2019
YZ80 1986-1987
YZF-1000R 1997
YZF-R1 1998

Customer Reviews

Write Review

Great fitment, bike runs great.

Great kit. Huge power upgrade.

Perfect fit with more power.

Wiseco always makes a great quality product. Ive used them many times over the years an never had failures. Failures mostly happen due to lack of preventive mat. Nothing last forever!

Worked great.

Excellent part.

I ordered this piston kit and an Athena Cylinder as well. All parts were correct, well priced, and arrived in good shape ready to go on.

5 stars

Perfect fit, correct size rings came with it, and gaskets were a perfect fit, and the wrist pin was pristine.

Great product! Great price! Thank you!

I never write reviews but then again I've never been this satisfied with service. I ordered it Thursday got it Saturday kids were riding Sunday! Honestly super impressed by how fast it got here, it was in great shape and fit like a glove.

Awesome, thanks.

Part was exactly what we ordered.

I’ve put about 30 hours of hard riding on this and it’s been holding up well! I highly recommend it. Just be sure to fully warm up your engine before doing anything hard on the engine.

Very impressed with the design of the pistons, added oil ports in the ring grooves, the machining is high quality, the detailed packaging show how much pride they take in their work.

5 Stars

Very high quality piston just like you would expect from Wiseco. Shipped quickly and very well packaged. Yamaha Bigbear 350 is running better than it ever has after a top end rebuild and a carb kit. Honed out the OEM cylinder and ring gap was .018 with the rings sent. Specs said 16-20 so right in the middle. Very clear instructions on checking gap and positioning ring gaps on piston. 93 Octane and thing is way snappier on tip-in than it ever has been. Totally satisfied with Wiesco on this one.

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Questions & Answers

Ask Question

Will this fit my 92 trail boss 250 2x4

By John

?

So long as you have chosen a 1992 Polaris Trail Boss 250 2X4 and you have a stock bore size cylinder, you should have no problem with fitment.

By Andy

Answer Question

Will this fit a 1990 Honda xr200r

By Eddie

Yes, just be sure of what size bore your cylinder is before ordering.

By Andy

Answer Question

Would this fit a 96 xr200r with a 65.5mm bore

By Andy

I believe that bike came with a 65.5mm bore from the factory, so you would just need to choose stock size before adding to your cart.

By Andy

Answer Question

Have a question? Please ask our experts and customers who own this product.

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Wiseco Piston Kit

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