1. Pistons, Rings & Piston Kits Products
  2. sku: 8361879903897623
  3. NAMURA NA-40002-4

NAMURA TECHNOLOGIES NA-40002-4 Piston Kit 758891085933 1.00MM 66.94MM

Na-40002-4 Namura Technologies Piston Kit - 1.00mm Oversize To 66.94mm

( Brand: Namura Technologies ), ( Manufacturer Part Number: NA-40002-4 ), ( Type: Engine ), ( Country/region Of Manufacture: China ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Authorized Dealer: Yes ), ( Bore: 66.94mm ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Compression: High Compression ), ( Height: 3.900 ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Sizing: 1.00mm Oversize ), ( Vehicletype: Atv ), ( UPC: 758891085933 )

Review NAMURA TECHNOLOGIES Piston Kit 1.00mm Oversize To 66.94mm

Introducing the Namura NA-40002-4 Piston Kit, a high-performance upgrade for your engine. This piston kit, specifically designed for applications requiring a 1.00mm piston diameter and 66.94mm piston stroke, is an excellent choice for those seeking improved power and efficiency.

The NA-40002-4 piston kit is meticulously engineered and manufactured to ensure optimal engine performance. Each piston is crafted from forged aluminum alloy, providing superior strength and durability. The piston crown is designed with a dish shape, which enhances the combustion process, allowing for more efficient fuel burning and increased horsepower.

The piston skirts are designed with a state-of-the-art coating that minimizes friction between the piston and cylinder wall, reducing wear and tear and ensuring a long-lasting, smooth-running engine. The piston rings are made from high-quality, low-friction material, ensuring a tight seal and preventing oil leakage.

This piston kit also includes connecting rods that are precision-machined from high-strength steel. The rods are designed to provide maximum strength and durability, ensuring efficient power transfer from the piston to the crankshaft. The rod bearings are made from high-quality materials that minimize friction and wear, ensuring a long-lasting, smooth-running engine.

The NA-40002-4 piston kit is designed to be a direct replacement for OEM pistons and rods. It is compatible with engines that require a 1.00mm piston diameter and 66.94mm piston stroke. The kit includes all necessary components, including pistons, connecting rods, piston rings, and rod bearings.

In conclusion, the Namura NA-40002-4 Piston Kit is an excellent choice for those seeking to upgrade their engine for improved power and efficiency. With its forged aluminum pistons, high-strength steel connecting rods, and state-of-the-art coatings, this kit is designed to provide superior performance and durability. Whether you're looking to boost horsepower or simply maintain your engine, the NA-40002-4 piston kit is an excellent investment.

The Namura NA-40002-4 piston kit is a popular aftermarket option for those looking to upgrade their engine's performance. Here are some pros and cons to consider before making a purchase:

Pros:

1. Enhanced Power: This piston kit is designed to provide increased power and torque, making it an attractive option for those looking for better engine performance.

2. High-Quality Material: The pistons are made of forged aluminum alloy, ensuring durability and strength.

3. Precise Manufacturing: The pistons are manufactured using advanced CNC machining techniques, ensuring a high level of precision and accuracy.

4. Improved Thermal Efficiency: The pistons feature a 1.00mm compression height, which can help improve thermal efficiency and reduce engine heat.

5. Suitable for Various Applications: This piston kit is suitable for various applications, including both naturally aspirated and forced-induction engines.

Cons:

1. Cost: This piston kit is more expensive than OEM options, making it a significant investment.

2. Installation Complexity: Installing aftermarket pistons can be a complex process, requiring specialized tools and expertise.

3. Potential Compatibility Issues: Ensure that the pistons are compatible with your specific engine model and configuration.

4. Break-In Period: After installation, the pistons will require a break-in period to ensure proper sealing and optimal performance.

Conclusion:

The Namura NA-40002-4 piston kit offers several advantages, including enhanced power, high-quality materials, and improved thermal efficiency. However, it comes with a higher cost, installation complexity, and potential compatibility issues. Ultimately, the decision to purchase this piston kit depends on your specific engine application, budget, and technical expertise. If you are looking for significant power gains and are willing to invest in a high-quality aftermarket option, this piston kit may be worth considering. If you have limited budget or technical expertise, an OEM piston kit may be a more suitable option.

Details:

Bore: 66.94mm, Compression: High Compression, Sizing: 1.00mm Oversize, Hi-Compression. Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of piston.

Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. MOS2 made with Teflon /Molybdenum Coated Skirts - A rolled on application process provides a fits Bond that is 10 times stronger than other spray coatings.

part #: na400024 prices

  • $62.22-$65.14

specifications pistondon:

  • brand: Namura Technologies
  • mpn: Na-40002-4
  • type: Engine
  • country/region of manufacture: China
  • manufacturer warranty: 1 Year Manufacturer Warranty
  • california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
  • authorized dealer: Yes
  • bore: 66.94mm
  • compatibility disclaimer: Compatibility Chart Information Provided By
  • compression: High Compression
  • height: 3.900
  • legal disclaimer: Your Local Laws Before Purchasing.
  • photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
  • sizing: 1.00mm Oversize
  • vehicletype: Atv
  • upc: 758891085933

shipping pistondon:

  • transit: 2-6 Days
  • type: Fixed
  • cost: $0.00
  • service: Expedited, Standard
  • class: Expedited, Standard

returns pistondon:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

payments pistondon:

  • other
  • credit card: Mastercard
  • wallet: Paypal

general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

seller pistondon:

  • city: Cedar Park, Texas
  • # reviews: 177234
  • rating: 97.8%

offer pistondon:

  • sold: 0
  • availability: In Stock
  • quantity: 2
  • options: Ship-to-home
  • started: October 1, 2025
type: engine, country/region of manufacture: china, manufacturer warranty: 1 year manufacturer warranty, california prop 65 warning: cancer and reproductive harm www.p65warnings.ca.gov, authorized dealer: yes, bore: 66.94mm, compatibility disclaimer: compatibility chart information provided by, compression: high compression, legal disclaimer: your local laws before purchasing., photo disclaimer: for reference only, may differ from product, see item details., sizing: 1.00mm oversize, vehicletype: atv,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, height: 3.900, sku: 8361879903897623,

Namura Technologies NA-40002-4 Is Similar To:

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5 offers $62.22–$65.14 USD
  • Offer #1: $65.14 price + $0.00 shipping estimate = $65.14* total. Yamaha Dirt Namura Technologies - - Piston Kit, 1.00mm Oversize to 66.94mm.FREE SHIPPING
  • Offer #2: $63.71 price + $0.00 shipping estimate = $63.71* total. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings.FREE SHIPPING
  • Offer #3: $62.22 price + $0.00 shipping estimate = $62.22* total. Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures.FREE SHIPPING
  • Offer #4: $86.66 price + $0.00 shipping estimate = $86.66* total.FREE SHIPPING
  • Offer #5: $72.95 price + $0.00 shipping estimate = $72.95* total. Product Type Piston kits & Components. Will not accept OEM rings and rings will not work on OEM piston.FREE SHIPPING

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