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Namura Piston Assembly - 85.5mm Bore - NA-10003-2

  • Part #: 1316632
  • Manufacturer Part #: NA-10003-2

MSRP Price: $99.95

Our Price: $89.96

You Save:
$9.99 (10%)
Please select Bore Size
2 on Hand

Overview of Namura Piston Assembly - 85.5mm Bore - NA-10003-2

  • 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


  • Included Items:
    1. (1) Piston
    2. (1) Set rings
    3. (1) Piston pin
    4. (2) Circlips

Specs for Namura Piston Assembly - 85.5mm Bore - NA-10003-2

Bore Size 85.5 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 1.05 lbs

Specs for Namura Piston Assembly - 85.5mm Bore - NA-10003-2

Bore Size 85.5 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 1.05 lbs

Fitment for Namura Piston Assembly - 85.5mm Bore - NA-10003-2

See if this part fits your ride

Part 1316632 fits the following machines

Honda
  • 2008 Honda TRX400EX
  • 2007 Honda TRX400EX
  • 2006 Honda TRX400EX
  • 2000 Honda TRX400EX FourTrax
  • 1999 Honda TRX400EX FourTrax
  • 2005 Honda TRX400EX Sportrax
  • 2004 Honda TRX400EX Sportrax
  • 2003 Honda TRX400EX Sportrax
  • 2002 Honda TRX400EX Sportrax
  • 2001 Honda TRX400EX Sportrax
  • 2014 Honda TRX400X
  • 2013 Honda TRX400X
  • 2012 Honda TRX400X
  • 2009 Honda TRX400X
  • 2004 Honda XR400R
  • 2003 Honda XR400R
  • 2002 Honda XR400R
  • 2001 Honda XR400R
  • 2000 Honda XR400R
  • 1999 Honda XR400R
  • 1998 Honda XR400R
  • 1997 Honda XR400R
  • 1996 Honda XR400R
5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
2
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Fit
5.0 / 5
Quality
5.0 / 5
Style
5.0 / 5
Value
5.0 / 5
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Good Stuff
Used a couple Namura pistons in the past. Excellent piston and great price. Glad to see Dennis Kirk carries these now. Just need them to carry the gaskets as well. Recommended for all types of users.
March 28, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Awsome Piston Kit
The Fit is great. I went with the .040 over boar. I'm not the overall expert on these, but I did the project with this product and now I'm riding again. The piston works great!

The machinist that did the bore really liked the product too, and he sees them everyday. That meant something to me.

Thank you Dennis Kirk and Namura!! A+
June 27, 2011
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Instructions and Manuals for Namura Piston Assembly - 85.5mm Bore - NA-10003-2