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Piston Assembly - 66.35mm Bore - NX-70051-B

  • Part #:
    133384SB
  • Mfg Part #:
    NX-70051-B
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Piston Assembly - 66.35mm Bore - NX-70051-B

  • Part #:
    133384SB
  • Mfg Part #:
    NX-70051-B
MSRP: $90.95

Price: $81.86 10% off!
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Namura Piston Assembly - 66.35mm Bore - NX-70051-B
  • 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 its 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

For replacement rings order PART NO. 13-3383SR
Specifications
Part #: 133384SB
Mfg #: NX-70051-B
Bore Size 66.35 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 0.75 lbs
Fitment for Namura Piston Assembly - 66.35mm Bore - NX-70051-B

Part 133384SB fits the following machines

KTM
  • 250 SX 2003-2016
  • 250 XC 2006-2016
  • 250 XC-W 2006-2018
  • 300 XC 2012
  • 300 XC-W 2012
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