2Bros Parts

PISTON KIT 05-18 YZ125 54.00 C, NAMURA NX-40009-C YAMAHA

£56.18

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UK delivery £4.99, free over £60 2–4 business days

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Namura Piston Kit C for Yamaha YZ125. This high-performance piston assembly features a 54mm bore and part number NX-40009. Engineered in the USA and manufactured in Taiwan, it is constructed from high-silicon content hypereutectic cast aluminum for reduced heat expansion, tighter clearances, increased hardness, and longer life. The piston crowns are machined for reduced carbon buildup, increased horsepower, and fuel economy. Some pistons feature hard anodized crowns for 75% greater strength, minimal expansion, and reduced cold seizures. MOS2 Teflon/Molybdenum coated skirts reduce friction and heat for added power and longevity. Namura rings match OEM design. This is a fractional oversize piston (-C .0008 in.). Cross reference numbers include 1C3-11631-03-D0, 1C3-11631-03-C0, 1C3-11631-03-A0, 1C3-11631-03-B0, 5NY-11611-00-00, 1C3-11633-00-00, 93450-16068-00, Wossner 8160DA, and NX-40009. Part No. 56-W845.C.NT.

Specifications
SKU
56-W845.C.NT
Brand
Namura Technologies
Availability
In Stock (4)

Fitments (24)

MakeModelYear
FANTICXE 1252021
FANTICXE 1252022
FANTICXX 1252021
YAMAHAYZ 1252004
YAMAHAYZ 1252005
YAMAHAYZ 1252006
YAMAHAYZ 1252007
YAMAHAYZ 1252008
YAMAHAYZ 1252009
YAMAHAYZ 1252010
YAMAHAYZ 1252011
YAMAHAYZ 1252012
YAMAHAYZ 1252013
YAMAHAYZ 1252014
YAMAHAYZ 1252015
YAMAHAYZ 1252016
YAMAHAYZ 1252017
YAMAHAYZ 1252018
YAMAHAYZ 1252019
YAMAHAYZ 1252020
YAMAHAYZ 1252021
YAMAHAYZ 125X2020
YAMAHAYZ 125X2021
YAMAHAYZ 125X2022
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54.00mm
Variant Id
258019
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Namura Piston Kit - 54mm Bore

Enhance your motorcycle's performance and longevity with this high-performance Namura Piston Kit. Engineered in the USA and manufactured in Taiwan, these pistons are designed to meet and exceed original equipment standards.

Key Features:

  • Material: Constructed from high-silicon content hypereutectic cast aluminum for reduced heat expansion, tighter clearances, increased hardness, and longer life.
  • Surface Finish: Features machined, smooth piston crowns designed to reduce carbon buildup, contributing to increased horsepower and fuel economy.
  • Hard Anodized Crowns: Provide 75% greater strength than non-anodized crowns, minimizing expansion and reducing the risk of cold seizures.
  • MOS2 (Teflon/Molybdenum) Coated Skirts: Offer superior friction reduction and heat management, leading to added power and extended durability.
  • Ring Design: Namura rings match OEM design specifications for optimal performance.
  • Bore Size: 54.00mm.
  • Oversize Options: Fractional oversize pistons are available for certain applications, allowing for extended engine life.
Before you buy

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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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

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