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Namura +1.00mm Top End Kit 10.9 NX-40025-4K for Yamaha YZ250 1999-2001

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SKU:
DS01-0075
MPN:
NX-40025-4K
Condition:
New
$82.00

Description

Specifications
Part: Top End Kit
Size: 67.35 mm
Oversize: +1.00 mm
Piston Type: Cast
Ring Count: Dual Ring
Compression Ratio: 10.9

Product Features
  • Anodized piston head increases strength and heat dissapation.
  • MOST Namura pistons feature a machined head which helps reduce carbon build-up and reflect heat.
  • All components are manufactured to OE-specs.
  • Paper gaskets are composed of non-asbestos Nitrile Butadiene bonded cellulose fiber materials, which maintain their tensile strength and torque retention in operating conditions over 300F.
  • Seals and O-rings are made of either NBR, Fluoroviton, or Silicone. Each material is selected based on the following chacteristics: Temperature resistance, abrasion resistance, chemical resistance, and their Aniline Point. In certain applications a Teflon coating is also applied to prolong service life.

Fits:
MakeModelYearNote
YamahaYZ2501999-200110.9 Compression
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