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Namura Top End Piston Rebuild Kit 83.95mm +1 OB 9.2:1
Top End Rebuild Kit|SKU #NA-40005-4K-672

Namura Top End Piston Rebuild Kit 83.95mm +1 OB 9.2:1

$122.65$134.92
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$122.65$134.92

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Additional Note

Namura's Top End kit is ideal for replacing worn parts and making some upgrades. Machined Smooth heads, available for certain models, can increase horsepower and fuel economy while reducing carbon buildup.

Description

Namura's Top End kit is ideal for replacing worn parts and making some upgrades. Machined Smooth heads, available for certain models, can increase horsepower and fuel economy while reducing carbon buildup.

Features

  • Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit
  • MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
  • Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%
  • Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
  • Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures
  • Piston Size: 83.95mm
  • Images are for reference purposes only

Specifications

Condition
New
SKU#
NA-40005-4K-672
Part
Top End Rebuild Kit

Vehicle Compatibility

Search to verify this part fits your vehicle

Year:2008
Make:Yamaha
Model:Wolverine 350 2x4 SRA YFM350X
Action:View
Year:1989
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2007
Make:Yamaha
Model:Wolverine 350 2x4 SRA YFM350X
Action:View
Year:1996
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2006
Make:Yamaha
Model:Wolverine 350 2x4 SRA YFM350X
Action:View
Year:1992
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2005
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2011
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2006
Make:Yamaha
Model:Bruin 350 2x4 SRA YFM350BA
Action:View
Year:1988
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2004
Make:Yamaha
Model:Raptor 350 2x4 YFM350
Action:View
Year:1999
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2004
Make:Yamaha
Model:Bruin 350 4x4 SRA YFM350FA
Action:View
Year:2005
Make:Yamaha
Model:Bruin 350 4x4 SRA YFM350FA
Action:View
Year:2006
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2001
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1987
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2003
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1993
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2000
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2009
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:1996
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1998
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1992
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2002
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1991
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2000
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2009
Make:Yamaha
Model:Wolverine 350 2x4 SRA YFM350X
Action:View
Year:1993
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2010
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:1994
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2004
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1995
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1996
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:1990
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2001
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:1992
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1993
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2006
Make:Yamaha
Model:Bruin 250 2x4 SRA YFM250B
Action:View
Year:2010
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:1998
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:1989
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2004
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2005
Make:Yamaha
Model:Bruin 250 2x4 SRA YFM250
Action:View
Year:2012
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FG
Action:View
Year:2008
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:1995
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:1994
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1998
Make:Yamaha
Model:Big Bear 350 2x4 SRA YFM350U
Action:View
Year:2003
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2011
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FGI
Action:View
Year:1997
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2009
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:1987
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:1988
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2007
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2014
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350D
Action:View
Year:2006
Make:Yamaha
Model:Bruin 350 4x4 SRA YFM350FA
Action:View
Year:2007
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:2008
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FGI
Action:View
Year:2008
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2009
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FGI
Action:View
Year:1999
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:1997
Make:Yamaha
Model:Big Bear 350 2x4 SRA YFM350U
Action:View
Year:2012
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:2011
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:2013
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:2011
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:1991
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:1999
Make:Yamaha
Model:Big Bear 350 2x4 SRA YFM350U
Action:View
Year:2010
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FGI
Action:View
Year:1999
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2013
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:2004
Make:Yamaha
Model:Bruin 350 2x4 SRA YFM350BA
Action:View
Year:1990
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:1990
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:1997
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:1991
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2010
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:1989
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2008
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:1994
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:1987
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:2012
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:2005
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:1996
Make:Yamaha
Model:Big Bear 350 2x4 SRA YFM350U
Action:View
Year:1995
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2002
Make:Yamaha
Model:Wolverine 350 4x4 SRA YFM350FX
Action:View
Year:2009
Make:Yamaha
Model:Grizzly 350 4x4 SRA YFM350FG
Action:View
Year:2012
Make:Yamaha
Model:Raptor 350 2x4 YFM350R
Action:View
Year:1995
Make:Yamaha
Model:Moto 4 350 YFM350ER
Action:View
Year:2007
Make:Yamaha
Model:Grizzly 350 2x4 SRA YFM350G
Action:View
Year:2007
Make:Yamaha
Model:Grizzly 350 4x4 IRS YFM350FGI
Action:View
Year:1997
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2005
Make:Yamaha
Model:Bruin 350 2x4 SRA YFM350BA
Action:View
Year:1998
Make:Yamaha
Model:Big Bear 350 4x4 SRA YFM350FW
Action:View
Year:1988
Make:Yamaha
Model:Warrior 350 YFM350X
Action:View
Year:2014
Make:Yamaha
Model:Grizzly 350 4x4 YFM350 Automatic
Action:View

Brand Details

Namura Technologies™ manufactures a wide array of pistons, gaskets, rings, and bearings for the powersports industry. By using the latest technology and manufacturing techniques Namura™ is able to make superior components for most makes and models without raising their prices enormously. If you want an OE fit but with additional features and a more competitive price point, then you want Namura Top End Piston Rebuild Kit 83.95mm +1 OB 9.2:1 from Namura™.

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