NAMURA TECHNOLOGIES NA-40004-4 Piston Kit 758891086039 100.97/ 1.00 9.2

( Brand: Namura Technologies ), ( Manufacturer Part Number: NA-40004-4 ), ( Part Type: Piston ), ( UPC: 758891086039 )

Review NAMURA TECHNOLOGIES Piston Kit 100.97/ 1.00 9.2 Yam

The Namura NA-40004-4 Piston Kit is a high-performance upgrade for Yamaha engines with a displacement of 100.97cc or 1.0 liter and a bore size of 9.2mm. This piston kit is designed to provide increased power, torque, and efficiency to your Yamaha engine, making it an excellent choice for those seeking to improve the performance of their motorcycle, ATV, or other small engine applications.

The pistons in this kit are made from forged aluminum alloy, ensuring superior strength and durability. They feature a compression height of 30.4mm and a piston ring groove width of 3.3mm, which are optimized for high-compression engines and ensure a proper seal between the piston and cylinder wall. The piston pins are made from chrome-molybdenum steel, providing excellent strength and resistance to wear and tear.

The piston kit also includes piston rings, which are made from high-quality, low-friction materials. The compression rings are made from nickel-chromium alloy, while the oil control rings are made from cast iron. These rings are designed to provide excellent sealing and ring grip, ensuring optimal engine performance and longevity.

The piston kit comes with a detailed instruction manual, making the installation process easy and straightforward. The pistons are precision-manufactured, ensuring a perfect fit and minimizing the need for machining or modification of the engine components. Additionally, the kit includes new piston pin bushings, which are essential for a successful installation.

Overall, the Namura NA-40004-4 Piston Kit is an excellent upgrade for Yamaha engines in need of a performance boost. With its high-quality materials, precise manufacturing, and easy installation process, this kit is a smart investment for any Yamaha enthusiast looking to maximize the potential of their engine.

Pros and Cons of buying a NAMURA NA-40104-4 Piston Kit for a 1.0L Yamaha Engine

The NAMURA NA-40104-4 piston kit is designed for use in 1.0L Yamaha engines. Replacing pistons and related components is a common maintenance task for engine upkeep. In this analysis, we will discuss the potential advantages and disadvantages of investing in this piston kit.

1. Superior Quality: NAMURA is a reputable brand known for producing high-quality pistons. This part may provide better durability and performance compared to OEM components.

2. Enhanced Performance: The piston kit may lead to improved engine performance due to enhanced design and materials.

3. Cost-Effective: Over time, replacing pistons and related components can save money by preventing catastrophic engine failure and costly repairs.

4. Smoother Operation: New pistons can help reduce engine noise and vibration, resulting in a smoother ride.

5. Customization: The piston kit offers an opportunity to customize engine performance by selecting specific piston designs or materials.

1. Installation Complexity: Installing the piston kit requires significant mechanical expertise and tools, potentially resulting in additional labor costs.

2. Cost: The NAMURA piston kit may cost more than OEM alternatives. However, the long-term benefits, such as improved performance and durability, may offset this expense.

3. Compatibility: Ensure the piston kit is compatible with your specific engine model and year before making a purchase.

4. Potential Break-In Period: New piston kits may require a break-in period to ensure optimal performance and durability.

In conclusion, the NAMURA NA-40104-4 piston kit for a 1.0L Yamaha engine presents several advantages, such as potential performance improvements, enhanced durability, and cost savings in the long run. However, it also comes with some disadvantages, including the complexity of installation and potential higher costs compared to OEM alternatives.

If you are mechanically inclined and have the necessary tools, purchasing the NAMURA piston kit may be a worthwhile investment for improved engine performance and long-term durability. Alternatively, consider having a trusted mechanic install the kit to ensure proper installation and optimal results. Ultimately, the decision to buy the piston kit depends on your budget, mechanical skills, and desired engine performance.

Details:

Useful Links. NAMURA NA-40004-4 PISTON KIT 100.97/ 1.00 9.2:1 YAM: Will not accept OEM rings and will work on piston.

part #: na400044 prices

• $84.08-$99.41

specifications pistondon:

• for makes: Yamaha
• brand: Namura Technologies
• mpn: Na-40004-4
• part type: Piston
• upc: 758891086039

offer pistondon:

• sold: 0
• started: April 29, 2025
• options: Ship-to-home
• quantity: 4
• availability: In Stock

payments pistondon:

• credit card: Discover
• other
• wallet: Paypal

returns pistondon:

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

general pistondon:

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

shipping pistondon:

• carrier: FedEx
• service: FedEx Ground or FedEx Home Delivery
• class: Standard
• type: Fixed
• cost: $0.00
• transit: 2-6 Days

seller pistondon:

• rating: 99.7%
• city: Willards, Maryland
• # reviews: 5440

Namura Technologies NA-40004-4 Is Similar To:

• Namura Technologies Nx-40080-4os 040 Over Bore Piston Kit For Yamaha 1993-2001 Yz80 48mm (57.5% similar) Manufactured by Namura. Made in Taiwan. Kit is for .040 over bore size - 48.00MM. Compression ratio of 8.2:1. Piston dome is anodized for superior heat resistance and longer lifespan. Piston is 47.95MM. Compatible with yamaha model's below: 1993 YZ80. Kit includes piston, rings, pin...(August 11th, 2024)
• Namura Technologies Nx-30000-c Piston Kit Standard Bore 53.96mm (63.6% similar) Bore: 53.96MM, sizing: standard bore, MOS2 made with Teflon /molybdenum coated skirts - a rolled on application process provides a fits bond...(August 12th, 2024)
• Namura Technologies Nx-30004 Size A 53.94mm Piston Kit For Suzuki 2001-2003 Rm125 Standard Bore 54mm (56.1% similar) Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Machined smooth heads - reflects combustion heat and reduces carbon buildup, protecting the top of piston...(August 12th, 2024)
• Namura Technologies Nx-30025-b Piston Kit Standard Bore 66.95mm (62% similar) Anodized domes - increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized. Machined smooth heads...(August 13th, 2024)
• Namura Technologies Fx-40049-c (55.3% similar) 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. Anodized domes - increases heat resistance and durability; pistons with anodized domes are...(August 13th, 2024)
• Namura Technologies Nx-10080-2r Nx 10080 2 Pistons All Have Molybdenium Skirt (52.5% similar) For kits, photo might show entire kit and listing is only for one component. All Namura pistons have super-high,:: Namura pistons. Note: photos do not always represent the actual product. All Namura pistons have anodized domes that provide superior heat resistance...(August 13th, 2024)
• Namura Orna-ra418207-gs 2004 Honda Cr125 Dirt Bike Piston Rings 53.95mm (41.5% similar) I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. 2004 Honda CR125 dirt bike Namura piston rings 53.95MM: ring set contains: ring to match a single piston.: brand: Namura, model number: ORAN-RA418207-GS...(August 13th, 2024)
• Namura Nx-10051-2k Top End Repair Kit 0.50mm 39.5mm 10.0 1 Honda Z50r crf50f xr50r (41.1% similar) Everything for a top end rebuild in one box. Comes with enough components to service one engine. Namura top end repair kit 0.50MM 39.5MM 10.0:1 Honda Z50R/CRF50F/XR50R: top-end repair kit can help improve the performance of your ride and keeping it running in peak condition...(August 14th, 2024)
• Namura Orna-ra418127-gs 2001-2002 Kawasaki Kx125 Dirt Bike Piston Rings 53.94mm (37.8% similar) Compatibility: Husqvarna Cr 125 1998 - 2010 , 2012 2013 , wry 2007 , 2009 Honda CR125R 2004 2007 , Kawasaki KX125 2005 , Suzuki RM125 1989 yamaha YZ125 2014 .: brand: Namura, model number: ORAN-RA418127-GS. Parts without fitment are to be assumed universal and may require vehicle...(August 14th, 2024)
• Namura Technologies Nx-30016-b Piston Kit For Engine Pistons Kits Aw (62.1% similar) Namura NC-30016-B piston kit for engine pistons kits aw: status: in stock...(August 15th, 2024)
• Namura Technologies Nx-20013-b Piston Kit Standard Bore 48.46mm (62% similar) Bore: 48.46MM, 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. Actual product may differ from the item shown in photograph. Benefits include increased heat...(August 15th, 2024)