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Namura Piston Assembly - 48.5mm Bore - NX-20085

  • Part #:
    131665S
  • Manufacturer Part #:
    NX-20085

MSRP Price: $80.95

Our Price: $72.86

You Save $8.09 (10%)
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Overview of Namura Piston Assembly - 48.5mm Bore - NX-20085
  • High-performance Namura pistons are engineered in the USA, manufactured in Taiwan
  • High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing
  • Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy
  • Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/Molybdenum coated skirts
  • MOS2 (Teflon/Molybdenum) coated skirts perform at the highest standards, reducing friction and heat for added power and longevity
  • Namura rings match the OEM design except as noted
  • -B (.0004 in.) and -C (.0008 in.) fractional oversize pistons, available for some applications, extend the life of your expensive cylinder by renewing the original clearance if it's slightly worn, avoiding an expensive sleeve installation
  • Piston assemblies include ring(s), wrist pin and circlips


  • NOTE: Nikasil Bore; cylinder sleeving or replating required for oversizes

Specs for Namura Piston Assembly - 48.5mm Bore - NX-20085

Bore Size 48.5 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 0.35 lbs
Specs for Namura Piston Assembly - 48.5mm Bore - NX-20085
Bore Size 48.5 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 0.35 lbs
Fitment for Namura Piston Assembly - 48.5mm Bore - NX-20085

Part 131665S fits the following machines

Make Sure This Fits Your Ride
Kawasaki
  • 2013 Kawasaki KX85
  • 2012 Kawasaki KX85
  • 2011 Kawasaki KX85
  • 2010 Kawasaki KX85
  • 2009 Kawasaki KX85
  • 2008 Kawasaki KX85
  • 2007 Kawasaki KX85
  • 2006 Kawasaki KX85
  • 2005 Kawasaki KX85
  • 2004 Kawasaki KX85
  • 2003 Kawasaki KX85
  • 2002 Kawasaki KX85
  • 2001 Kawasaki KX85
  • 2009 Kawasaki KX85 Monster Energy
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Instructions and Manuals for Namura Piston Assembly - 48.5mm Bore - NX-20085