Dennis Kirk Inc.

Piston Assembly - 84mm Bore - NA-40005-4

  • Part #:
    1331924
  • Mfg Part #:
    NA-40005-4

Piston Assembly - 84mm Bore - NA-40005-4

  • Part #:
    1331924
  • Mfg Part #:
    NA-40005-4
MSRP: $98.95

Price: $94.00 5% off!
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Namura Piston Assembly - 84mm Bore - NA-40005-4
  • 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) Pison
    (1) Ring set
    (2) Wrist pin clips
    (1) Wrist pin
Specifications
Bore Size 84 mm
Mfg #: NA-40005-4
Part #: 1331924
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 1.05 lbs
Fitment for Namura Piston Assembly - 84mm Bore - NA-40005-4

Part 1331924 fits the following machines

Yamaha

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