NAMURA TECHNOLOGIES NA-40009-CH Piston Kit Standard Compr 758891086220 94.97MM 11.4

( Brand: Namura Technologies ), ( Manufacturer Part Number: NA-40009-CH ), ( 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: 94.97mm ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Compression: 11.4 ), ( Height: 4.900 ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Sizing: Standard Bore ), ( Vehicletype: Atv ), ( UPC: 758891086220 )

Review NAMURA TECHNOLOGIES Piston Kit Standard Bore 94.97mm 11.4 Compr

Introducing the Namura NA-40009-CH Piston Kit, a high-performance upgrade solution for your standard 94.97mm bore, 11.4 compression ratio engine. This piston kit is an excellent choice for those seeking improved power and efficiency, making it an ideal option for racing applications or high-performance street use.

The NA-40009-CH Piston Kit from Namura comes with four forged pistons, each precision-machined to ensure superior strength and durability. The piston skirts are optimally designed for a snug fit in the cylinder bore, minimizing friction and reducing engine wear. The piston crowns feature a dished shape, providing ample space for an efficient combustion process, allowing the engine to breathe better and generate more power.

The piston tops are equipped with a multi-ring design, including a compression ring, an oil control ring, and a skirt oil control ring. This design ensures a perfect seal, preventing any combustion gases from leaking past the piston rings and reducing oil consumption. Additionally, the piston tops are coated with a specialized coating that increases the resistance to detonation and prevents scuffing.

The NA-40009-CH Piston Kit also includes ring packs, consisting of the compression rings, the oil control rings, and the skirt oil control rings. These rings are manufactured using high-quality material for optimal performance and longevity. The compression rings ensure efficient combustion, while the oil control rings maintain proper lubrication and reduce oil consumption.

The piston pins are made of high-strength material, ensuring a secure connection between the piston and the connecting rod. They are also chrome-molybdenum coated, providing excellent wear resistance and reducing the risk of galling.

In summary, the Namura NA-40009-CH Piston Kit is a top-tier upgrade solution for your standard 94.97mm bore, 11.4 compression ratio engine. It offers enhanced power, improved efficiency, and increased durability, making it an excellent choice for racing applications or high-performance street use. The forged pistons, multi-ring design, and high-quality materials used throughout the kit ensure superior performance and longevity.

Pros and Cons of buying a Namura NA-40009-CH Piston Kit for a 94.97mm Bore Engine

The Namura NA-40009-CH Piston Kit is a standard solution for those looking to replace worn pistons in a 94.97mm bore engine. Like any other purchase, it comes with its advantages and disadvantages. This analysis will outline both, aiming to help you make an informed decision.

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

2. Precise Fit: This kit is specifically designed for a 94.97mm bore engine, ensuring a perfect fit.

3. Affordability: Compared to some aftermarket alternatives, the Namura piston kit offers excellent value for the price.

4. Complete Kit: The package includes not only the pistons but also the piston rings, making it a convenient one-stop solution.

5. Wide Compatibility: This kit is suitable for various engine types, including diesel and gasoline engines.

1. Limited Warranty: The piston kit comes with a limited warranty, which might not cover every potential issue.

2. Break-in Period: New pistons and rings require a break-in period to ensure optimal performance and longevity.

3. Installation Complexity: Installing the pistons and rings can be a challenging process, especially for those without experience.

The Namura NA-40009-CH Piston Kit offers several advantages, including high-quality materials, precise fit, affordability, and completeness. However, it also presents some disadvantages, such as a limited warranty, a required break-in period, and the complexity of installation.

If you're looking for a reliable and affordable piston kit for a 94.97mm bore engine, the Namura NA-40009-CH Piston Kit is an excellent choice. Just keep in mind that the installation process might be challenging, and you'll need to allow for a break-in period to achieve optimal performance. If you're not confident in your ability to install the pistons and rings yourself, consider hiring a professional mechanic to ensure the job is done correctly.

Details:

Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized. Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of piston. Bore: 94.97mm, Compression: 11.4:1 Compression, Sizing: Standard Bore, 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. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%.

Vehicle Fitment: 2004 - 2009 fits YAM YFZ450, 2012 2013 2006 - 2007 YFZ450 Bill Balance Edition, 2007 2008 SE, 2009 2017 YFZ450R, YFZ450R 2010 - 2011 YFZ450X, 2010 YFZ450X Balance, 2011 SE Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures.

part #: na40009 prices

• $113.81-$130.86

specifications pistondon:

• brand: Namura Technologies
• mpn: Na-40009-ch
• 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: 94.97mm
• compatibility disclaimer: Compatibility Chart Information Provided By
• compression: 11.4
• height: 4.900
• legal disclaimer: Your Local Laws Before Purchasing.
• photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
• sizing: Standard Bore
• vehicletype: Atv
• upc: 758891086220

seller pistondon:

• city: Cedar Park, Texas
• # reviews: 176719
• rating: 97.7%

payments pistondon:

• credit card: Mastercard
• other
• wallet: Google-pay

returns pistondon:

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

general pistondon:

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

offer pistondon:

• started: September 8, 2025
• availability: In Stock
• quantity: 2
• options: Ship-to-home
• sold: 0

shipping pistondon:

• transit: 3-7 Days
• service: Expedited, Standard
• cost: $0.00
• type: Fixed
• class: Expedited, Standard

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