Wiseco - Top End Kit

    Wiseco Top End Kit

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    Was $110.39 - $334.79 $98.99 - $297.99 Was $110.39 - $334.79 You save up to $36.80 (11%)

    Rating 4.76 of 5 (19 Reviews)
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    Product Information

    Wiseco Top End Kit
    • Wiseco-forged high-silicon aluminum alloy pistons are computer-machined to exacting tolerances
    • Designed for greater strength with reduced weight and improved heat transfer
    • Piston kits come complete with hi-performance forged pistons (enough for one engine), rings, wrist pins, circlips and full top end gasket kit
    • Replacement pistons include rings and circlips
    • Made in the U.S.A.
    **Notes:
    • Cylinder sleeving or replating may be required for oversizes
    • 02-06 Suzuki RM85 models must use stock thrust washers
    • 2004 CR125 Includes GP style piston. GP style pistons have a Hard Coat Anodized finish for improved wear characteristics

      **Closeouts are limited to stock on hand**
    • Item # 12678

    FitmentView All

    Honda Models

    • ATC250R: 1986
    • CR125R: 1992 - 2007
    • CR250R: 1992 - 2004
    • CR85R: 2003 - 2007
    • CR85R Expert: 2004
    • CRF150R: 2007 - 2009, 2012 - 2013
    • CRF150R Expert: 2007 - 2009, 2012
    • CRF250R: 2004 - 2007
    • CRF250X: 2004 - 2009, 2012 - 2013
    • CRF80F: 2004 - 2009, 2012 - 2013
    • FourTrax Rancher 350 4x4: 2000 - 2006
    • FourTrax Rancher 350 4x4 ES: 2000 - 2006
    • FourTrax Rancher 350 ES: 2000 - 2006
    • FourTrax Rancher 350 S: 2000 - 2006
    • TRX250EX: 2001 - 2008
    • TRX250R: 1986
    • TRX300: 1988 - 2000
    • TRX300EX: 1993 - 2009
    • TRX300X: 2009
    • TRX450R: 2004 - 2009, 2012 - 2013
    • TRX450R (Electric Start): 2009, 2014
    • XR100R: 1995
    • XR200R: 1994, 2000, 2002
    • XR80R: 1993 - 2003

    Kawasaki Models

    • KFX400: 2003 - 2006
    • KFX450R: 2009 - 2011, 2014
    • KLX400S: 2003
    • KX100: 1995 - 2009, 2011 - 2013
    • KX125: 2001 - 2002
    • KX250: 1993 - 2001
    • KX250F: 2004 - 2006, 2011 - 2014
    • KX60: 1986 - 2003
    • KX65: 2000 - 2009, 2011 - 2014
    • KX80: 1991 - 2000
    • KX80 Big Wheel: 1994
    • KX85: 2001 - 2013

    Suzuki Models

    • DR-Z400: 2000 - 2004, 2007
    • DR-Z400E: 2000 - 2007
    • DR-Z400S: 2000 - 2009, 2011 - 2013
    • DR-Z400SM: 2005 - 2009, 2013
    • QuadRacer R450: 2006 - 2009
    • QuadSport Z400: 2003 - 2009
    • RM100: 2003 - 2004
    • RM125: 1991 - 2007
    • RM250: 1992 - 1995, 2003 - 2006
    • RM65: 2003 - 2005
    • RM85: 2002 - 2009, 2012
    • RMX250: 1993 - 1998
    • RM-Z250: 2004 - 2006
    • RM-Z450: 2008 - 2012

    Yamaha Models

    • Banshee 350: 1987 - 2006
    • Big Bear 350 4x4: 1989 - 1999
    • Big Bear 400: 2000 - 2006
    • Big Bear 400 4x4: 2000 - 2006
    • Blaster 200: 1988 - 2006
    • Grizzly 350 Auto 4x4: 2014
    • Grizzly 660 4x4: 2002 - 2008
    • Kodiak 400: 1993 - 1999
    • PW50: 1986 - 1987, 1990 - 2006
    • Raptor 350: 2005 - 2011
    • Raptor 660R: 2001 - 2005
    • Raptor 700R: 2006 - 2009, 2011, 2014
    • Raptor 700R SE: 2014
    • Rhino 660 4x4: 2005 - 2007
    • Warrior 350: 1987 - 2004
    • WR250F: 2005 - 2009, 2011
    • WR250Z: 1995 - 1997
    • YFZ450: 2004 - 2005
    • YZ125: 1998 - 2004
    • YZ250: 1995 - 1998, 2001 - 2012, 2014
    • YZ250F: 2005 - 2007
    • YZ80: 1993 - 2001

    Product Reviews Showing 15 of 19 Reviews

    Overall Rating: 4.76 of 5

    (19 Reviews)
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    What Other Riders Are Saying...

    Fit

    Quality

    Installation

    Recommend

    Was good...

    Fit great and was an easy installation but blew it first time I took it to the track.

    Jake - October 10, 2014

    (Colchester, CT)

    Fit

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    Installation

    Recommend

    Wisconsin top end kits kx65 kx 85

    New Wisco top end kits for KX65 and KX85. The fit was great and had no problems at all- the bikes have been running good. My only recommendation is that you have to let the bikes warm up before you wind them out. You might get a little piston slap or nock.

    Ed - August 18, 2014

    (Methuen, MA)

    Fit

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    Installation

    Recommend

    Wiseco piston

    I put it all together very easily, but it blew up in less than 24 hours of installation!

    Cooper - September 18, 2013

    (Russellville, IN)

    Fit

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    Installation

    Recommend

    Suzuki RM125 worked perfect

    Went together easily, had all the parts needed and really rips now.

    Bob - August 12, 2013

    (Camp Verde, AZ)

    Fit

    Quality

    Installation

    Recommend

    Weisco Top End Kits - CRF250R and 150R

    We ride in tight woods and had ~125 hrs on OEM pistons (had a little skirt wear but no cylinder wear). This was my first top end install and needed to do two bikes. Kits were complete and quality seems excellent - great fit and performance. Instructions were OK, but not great - had to do a lot of learning on Web also. Highly recommend these kits, plan to get another kit for each bike in another 150 hrs.

    Dave - June 26, 2013

    (Genesee, ID)

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    Recommend

    WiseCo TopEnd Kit

    I researched for a top end kit and Wiseco always popped up as one of the best and always used, and I agree. Can't go wrong with Wiseco.

    Gabriel - June 18, 2013

    (Santa Maria, CA)

    Fit

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    Recommend

    Wiseco Rules!

    You won't find a better way of freshening up a 2-stroke than a top end kit, and you won't find a better quality kit than this one by Wiseco. The Piston, ring, wrist pin and all seals are top nothch. The price is unbeatable for what comes with this kit!

    Brian - January 15, 2013

    (Bagdad, AZ)

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    Recommend

    Piston works great....

    Nice kit. Easy to install and all parts fit well and nicely machined. Waiting to find out how well it holds up with time.

    PM - October 10, 2012

    (East Granby, CT)

    Fit

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    Recommend

    wiseco top end kit

    I bought the kit for my 2008 RM 250. piston is a nice piece of machining in a smooth bag, all pieces fit perfectly good explainations and work very well. This is a perfect match between good price and good quality, I will definitely use more of these kits in my bike !

    Franck - September 21, 2012

    (vaudreuil, QC)

    Fit

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    Installation

    Recommend

    Top End Kit

    Installation was pretty quick, but we did hit a snag with one of the top head gaskets. Had to put it in the freezer for a few minutes before it would settle in the inlet. Outside of that everything went in just fine.

    Andy - August 20, 2012

    (Bellevue, WA)

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    Recommend

    just what I needed.

    Complete package for top end rebuild! Highly recommended!

    dan - June 22, 2012

    (Mountlake terrace, WA)

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    Recommend

    Excellent Kit

    Even for an amateur like myself, this kit made the job extremely easy. All gaskets and o-rings were included, and the parts fit like a glove.

    Jim - September 27, 2011

    (Atlanta, GA)

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    Recommend

    Good to go.

    Great kit. This is how it should be. Everything you need, first time. Very straight forward. A monkey could rebuild a top end with this kit. Inexpensive too, which is nice for those of us who have to pay for our rides... I'll definitely go for this again when it's my 250's turn.

    Daniel - June 14, 2011

    (Lomita, CA)

    Fit

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    Recommend

    Wiseco top end kit

    This kit is great I run wiseco pistons in all my bikes, they seem to not warp as easy as other brands, the only thing about this one kit was the wrist pin had absolutely zero clearance in the piston. I actually had to freeze the pin and piston overnight to shrink the metal so I could get the pin in and once they warmed back up they are together for good which in turn will suck if I change it again. Besides the tight clearance I recommend wiseco to any rider quality product from a company that has been around.

    shane m - June 09, 2011

    (brighton, MI)

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    Recommend

    AWESOME!!!

    I got this kit and wasn't sure if I was making the right decision or not. All I can say is if you need to replace your piston get this product. It provided everything I needed to do a complete top end rebuild, gaskets and all! My bike runs better than ever and I am definitely going to buy wiseco products again!

    Justin - September 24, 2010

    (Manheim, PA)
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