2Bros Parts

PISTON KIT 87-06 YFZ350 65.50, NAMURA NA-40001-6 YAMAHA

£51.34

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

Spread the cost with Klarna 18+, T&Cs apply

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PISTON KIT 87-06 YFZ350 65.50, NAMURA NA-40001-6. Piston Assembly - 65.50mm Bore - NA-40001-6. High-performance Namura pistons are engineered in the USA and manufactured in Taiwan using 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.

Specifications
SKU
56-W515.150.NT
Brand
Namura Technologies
Availability
In Stock (2)

Fitments (38)

MakeModelYear
YAMAHARD 3501982
YAMAHARD 3501983
YAMAHARD 3501984
YAMAHARD 3501985
YAMAHARD 3501986
YAMAHARD 3501987
YAMAHARD 3501988
YAMAHARD 3501989
YAMAHARD 3501990
YAMAHARZ 3501982
YAMAHARZ 3501983
YAMAHARZ 3501984
YAMAHARZ 3501985
YAMAHARZ 3501986
YAMAHARZ 3501987
YAMAHARZ 3501988
YAMAHARZ 3501989
YAMAHARZ 3501990
YAMAHAYFZ BANSHEE 3501987
YAMAHAYFZ BANSHEE 3501988
YAMAHAYFZ BANSHEE 3501989
YAMAHAYFZ BANSHEE 3501990
YAMAHAYFZ BANSHEE 3501991
YAMAHAYFZ BANSHEE 3501992
YAMAHAYFZ BANSHEE 3501993
YAMAHAYFZ BANSHEE 3501994
YAMAHAYFZ BANSHEE 3501995
YAMAHAYFZ BANSHEE 3501996
YAMAHAYFZ BANSHEE 3501997
YAMAHAYFZ BANSHEE 3501998
YAMAHAYFZ BANSHEE 3501999
YAMAHAYFZ BANSHEE 3502000
YAMAHAYFZ BANSHEE 3502001
YAMAHAYFZ BANSHEE 3502002
YAMAHAYFZ BANSHEE 3502003
YAMAHAYFZ BANSHEE 3502004
YAMAHAYFZ BANSHEE 3502005
YAMAHAYFZ BANSHEE 3502006
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
65.5mm
Variant Id
256653
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Namura Technologies Piston Kit 65.50mm Bore

This high-performance piston kit from Namura Technologies is engineered in the USA and manufactured in Taiwan. It features a 65.50mm bore size, designed to enhance the performance and longevity of your motorcycle.

Key Features:

  • High-Silicon Content Hypereutectic Cast Aluminum: This advanced material offers reduced heat expansion, tighter clearances, increased hardness, longer life, and reduced scuffing for superior durability.
  • Machined Smooth Piston Crowns: Promotes reduced carbon buildup, leading to increased horsepower and improved fuel economy.
  • Hard Anodized Crowns: Provides 75% greater strength than non-anodized crowns, minimizing expansion and reducing the risk of cold seizures.
  • Teflon/Molybdenum Coated Skirts (MOS2): These specially coated skirts reduce friction and heat, contributing to added power and extended lifespan.
  • OEM Match Rings: The included rings are designed to match original equipment specifications for a precise fit.
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call us0330 133 3748
Email us[email protected]

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

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.

More answers in our FAQ.

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