2Bros Parts

PISTON KIT 92-98 YZ250 68.00 A, NAMURA NX-40026 YAMAHA MX

$87.85

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Delivery to United States 5–8 business days

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PISTON KIT 92-98 YZ250 68.00 A, NAMURA NX-40026. Piston kits come with the piston individually wrapped, a set of OEM quality rings packed in their own box, a wrist pin, and circlips. Direct replacement for OEM piston with no modifications or dimensional adjustments needed. Features MOS2 coating and hard anodizing for higher performance. Available in a variety of oversizes in 0.25mm increments, from -1 (0.25mm over) through -6 (1.5mm over). Also available in B (0.01mm) and C (0.02mm) sizes. Big bore kits also available. Part number 56-W677.A.NT. Manufacturer Namura Technologies. Weight 358 grams.

Specifications
SKU
56-W677.A.NT
Brand
Namura Technologies
Availability
In Stock (2)

Fitments (23)

MakeModelYear
YAMAHAWR 2501988
YAMAHAWR 2501989
YAMAHAWR 2501990
YAMAHAWR 2501991
YAMAHAWR 2501992
YAMAHAWR 2501993
YAMAHAWR 2501994
YAMAHAWR 2501995
YAMAHAWR 2501996
YAMAHAWR 2501997
YAMAHAWR 2501998
YAMAHAWR 2501999
YAMAHAYZ 2501988
YAMAHAYZ 2501989
YAMAHAYZ 2501990
YAMAHAYZ 2501991
YAMAHAYZ 2501992
YAMAHAYZ 2501993
YAMAHAYZ 2501994
YAMAHAYZ 2501995
YAMAHAYZ 2501996
YAMAHAYZ 2501997
YAMAHAYZ 2501998
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
68.00mm
Variant Id
257448
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Namura NX-40026 A Piston Kit for Yamaha YZ250/WR250

This Namura piston kit is a direct replacement for your Yamaha YZ250 or WR250. Designed for optimal performance and longevity, these kits are engineered to fit without the need for modifications.

Each Namura piston kit includes:

  • Individually wrapped piston
  • OEM quality piston rings, packaged separately
  • Wrist pin
  • Circlips

Namura pistons feature a MOS2 coating and hard anodizing, enhancing performance and durability without a premium price tag. This kit is for the standard bore size (A).

Namura offers a range of oversized pistons in 0.25mm increments, from -1 (0.25mm over) to -6 (1.5mm over) for most applications. They also offer B (0.01mm) and C (0.02mm) pistons designed to extend the life of Nikasil, Boron Composite, or Ceramic cylinders, providing a cost-effective alternative to cylinder replacement.

Key Features:

  • Direct OEM replacement
  • MOS2 coating for enhanced performance
  • Hard anodizing for increased durability
  • Includes all necessary components for installation
  • Available in various oversizes and specific bore sizes
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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