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Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

  • Part #:
    133369S
  • Manufacturer Part #:
    NX-40033

MSRP Price: $169.95

Our Price: $152.96

You Save:
$16.99 (10%)
3 on Hand

Overview of Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

  • The new HYPERDRYVE line of pistons is composed of a space-age hypereutectic aluminum alloy developed by NASA.
  • Engineered to maintain its high tensile strength up to 700° F(370°C), 50% higher than a conventional cast piston, this gives HYPERDRYVE the strength to perform under operating conditions normally reserved for forged pistons.
  • This revolutionary alloy, combined with our already existing features of machined smooth anodized heads (for better heat reflection) and MOS2 coated skirts (giving you smoother startups and break ins) meets the demands of todays 4-stroke engines.
  • HYPERDRYVE is the exclusive line of pistons for 250 and 450CC motocross bikes, as well as select sport quads.
  • Piston assemblies include ring(s), wrist pin and circlip


For replacement rings order PART NO. 13-3362SR

Specs for Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

Bore Size 76.94 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 0.75 lbs

Specs for Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

Bore Size 76.94 mm
Type Piston Assembly
Type Piston w/Ring Set
Units Each
Weight 0.75 lbs

Fitment for Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

See if this part fits your ride

Part 133369S fits the following machines

Yamaha
  • 2013 Yamaha WR250F
  • 2012 Yamaha WR250F
  • 2011 Yamaha WR250F
  • 2009 Yamaha WR250F
  • 2008 Yamaha WR250F
  • 2007 Yamaha WR250F
  • 2006 Yamaha WR250F
  • 2005 Yamaha WR250F
  • 2013 Yamaha YZ250F
  • 2012 Yamaha YZ250F
  • 2011 Yamaha YZ250F
  • 2010 Yamaha YZ250F
  • 2009 Yamaha YZ250F
  • 2008 Yamaha YZ250F
  • 2007 Yamaha YZ250F
  • 2006 Yamaha YZ250F
  • 2005 Yamaha YZ250F
  • 2006 Yamaha YZ250FSP 50th Anniversary Edition
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Instructions and Manuals for Namura Hyperdryve Piston Assembly - 76.94 Bore - NX-40033

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