SKU: 12899209574

Namura Piston Kit 43.44mm Single Ring – Yamaha YZ65 '18–'24

Sale price$77.39 Regular price$85.99
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

Namura Piston Kit 43.44mm Single Ring – Yamaha YZ65 '18–'24Namura provides high quality piston options to suit a wide range of applications, including direct OEM replacements, high compression variants, and multiple oversizes. B (0. 01 mm) and C (0. 02 mm) oversizes are also available, helping to extend the service life of expensive plated cylinders. Select applications are supported with big bore piston kits. With the addition of MOS2 coating and hard anodising, Namura delivers improved performance and

Namura provides high-quality piston options to suit a wide range of applications, including direct OEM replacements, high-compression variants, and multiple oversizes. B (0.01 mm) and C (0.02 mm) oversizes are also available, helping to extend the service life of expensive plated cylinders. Select applications are supported with big-bore piston kits. With the addition of MOS2 coating and hard anodising, Namura delivers improved performance and durability, without the premium price.

Features:

  • MOS2 (Teflon/Molybdenum) Coated Skirts: Applied using a rolled-on process for a bond up to 10 times stronger than typical spray coatings. Improves heat transfer, reduces friction, and helps prevent cold seizures.
  • Machined Smooth Heads: Reflect combustion heat and minimise carbon build-up, protecting the piston crown. Testing indicates potential gains of up to 6% in horsepower and fuel efficiency.
  • Anodised Domes: Enhance heat resistance and durability, with up to 75% greater strength compared to non-anodised pistons.
  • Hypereutectic Casting Process: Increases silicon content to reduce expansion, improve wear resistance, and withstand higher cylinder temperatures.
  • 0.50 mm oversize up to 100.47 mm, with a 9.2:1 standard compression ratio.
  • Includes piston (individually wrapped), OEM-quality rings (boxed separately), wrist pin, and circlips.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12899209574

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4.8 ★★★★★
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Verified Purchase
James A Karon
Lake Worth, US
★★★★★ 4
Seems fine
The kit looks good to me. Better than my old one that lasted 15 years.
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Reviewed in the United States on May 18, 2026
J
Verified Purchase
JCK
Chelsea, US
★★★★★ 5
Would buy again
No issues with this product. The oversized T handles make it a bit easier to complete the plugs. Definitely easier for those who have trouble gripping smaller items to work with or for those with larger hands. Valve stem remover was nice quality and nice to have additional valve stems. Would buy again. Wish it had a better case but I can't complain for the price.
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Reviewed in the United States on October 6, 2025
S
Verified Purchase
Sharon McGlynn
Belleville, US
★★★★★ 5
Worth the money
.
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Reviewed in the United States on May 9, 2026
E
Verified Purchase
Ernesto Guerrero
Belleville, US
★★★★★ 5
great kit
complete kit for traveling/emergency, would buy again when i use all the parts from this one.
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Reviewed in the United States on May 6, 2026
M
Verified Purchase
Mark
Boise, US
★★★★★ 5
Got a hole in your tire? Get this kit. It works great.
This was purchased in a pinch, and it plugged the hole on the tire first try. it is still holding to this day.
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Reviewed in the United States on February 26, 2026

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