NAMURA 9303KX250NPGK6640 Top Piston Kit End Gasket Set 66.40MM

( Brand: Namura ), ( Manufacturer Part Number: 9303KX250NPGK6640 ), ( Engine Type: 2-stroke ), ( Type: Piston Kit Top End Gasket Set ), ( Machine Type: Off-road Motorcycle ), ( Items Included: Gasket, Wrist Pin, Piston, Circlips, Piston Rings ), ( Cylinder Bore Diameter: 66.40mm ), ( Piston Diameter: 66.35mm ), ( Material: Hypereutectic Cast Aluminum ), ( Country/region Of Manufacture: Taiwan )

Review NAMURA Kawasaki Piston Kit Top End Gasket Set 66.40mm Bore fits KX250 STD 1993–2003

Introducing the Namura 9303KX250NPGK6640 piston kit top end gasket set, specifically designed for Kawasaki KX250 motorcycles manufactured between 1993 and 2003. This comprehensive kit includes all the necessary components for a successful top end rebuild, ensuring a perfect seal and optimal engine performance.

The heart of this kit is the high-quality piston, precision-engineered to provide exceptional durability and reliability. The piston features a forged construction and a honed skirt for a snug fit within the cylinder bore. The piston crown is designed with a symmetrical shape and a compression height that matches the OEM specifications, ensuring optimal combustion and power output.

This kit also includes a complete set of gaskets, all manufactured to meet or exceed OEM specifications for a perfect seal and leak-free operation. The gaskets are specifically designed to fit the unique contours and dimensions of the Kawasaki KX250 engine, ensuring a proper seal between the cylinder head, cylinder, and other related components.

In addition to the piston and gaskets, this kit also includes other essential components for a successful top end rebuild. These components include the piston rings, clutch rings, and timing chain kit, all of which are designed to meet or exceed OEM specifications for reliable and long-lasting performance.

The Namura 9303KX250NPGK6640 piston kit top end gasket set is an excellent choice for anyone looking to rebuild the top end of their Kawasaki KX250 motorcycle. With high-quality components designed to meet or exceed OEM specifications, this kit offers the perfect combination of performance, reliability, and durability. Whether you're a professional mechanic or a dedicated hobbyist, this kit provides everything you need for a successful and rewarding top end rebuild.

Buying the Namura 9303KX250NPGK6640 Kawasaki KX250 piston kit top end gasket set can be a valuable investment for Kawasaki KX250 motorcycle owners looking to rebuild their engine or address engine issues. Here are some potential pros and cons to consider before making a purchase.

1. High-quality gaskets and pistons: The Namura piston kit includes high-performance pistons and top-quality gaskets that can help improve engine performance, efficiency, and longevity.

2. OEM-equivalent components: The Namura kit offers OEM-equivalent components that can provide a precise fit and reliable performance, ensuring a smooth and efficient engine operation.

3. Cost-effective: While the upfront cost of the Namura kit may be higher than some aftermarket options, it can save riders money in the long run by reducing the need for frequent engine rebuilds or repairs.

4. Improved power and torque: The high-performance pistons in the Namura kit can help increase engine power and torque, providing a more enjoyable riding experience.

5. Compatibility: The Namura kit is compatible with Kawasaki KX250 motorcycles from 1993 to 2003, making it a versatile and widely-applicable solution for a range of bikes in this model year and generation.

1. Upfront cost: The Namura piston kit may have a higher upfront cost compared to some aftermarket options, making it a potential investment for more serious or frequent riders or racers.

2. Installation complexity: Installing the piston kit and top end gasket set can be a complex and time-consuming process, requiring specialized tools and mechanical expertise.

3. Potential for engine damage: Improper installation or use of low-quality aftermarket components can result in engine damage, potentially outweighing the benefits of the Namura kit.

The Namura 9303KX250NPGK6640 Kawasaki KX250 piston kit top end gasket set offers several benefits for Kawasaki KX250 motorcycle owners, including high-quality components, OEM-equivalence, improved power and torque, and compatibility with a range of bikes in this model year and generation. However, the upfront cost and installation complexity may be potential drawbacks for some riders. Ultimately, the decision to purchase the Namura kit should be based on the individual rider's needs, budget, and mechanical expertise. If the benefits outweigh the potential drawbacks, the Namura piston kit can be a valuable investment for Kawasaki KX250 motorcycle owners looking to optimize their engine performance and longevity.

If you are a serious or frequent Kawasaki KX250 rider or racer looking to optimize your engine performance and longevity, the Namura 9303KX250NPGK6640 Kawasaki KX250 piston kit top end gasket set is a highly-recommended investment. Its high-quality components, OEM-equivalence, improved power and torque, and compatibility with a range of bikes in this model year and generation make it a valuable solution for those looking to get the most out of their Kawasaki KX250 motorcycle. However, if you are a casual rider or have limited mechanical expertise, it may be worth considering less complex or costly solutions. In any case, it is important to ensure that the piston kit is installed properly by a qualified mechanic or following the manufacturer's instructions carefully to avoid potential engine damage.

Details:

Made to meet or exceed OEM specifications. MOS2 Teflon/Molybdenum coated skirts perform at the highest standards, reducing friction and heat for added power longevity. High-quality cast piston made with excellent materials to precise specifications. Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy.

High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Includes piston, rings, wrist pin, circlips, and a top end gasket kit. Brand New Namura Piston Kit and Top End Gasket Set. Piston is for the standard bore 66.40mm, actual size of piston 66.35mm.

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.

part #: 9303kx250npgk6640 prices

• $109.99-$499.00

specifications pistondon:

• for models: Kx250, Std
• for makes: Kawasaki
• for years: 1993-2003
• brand: Namura
• mpn: 9303kx250npgk6640
• engine type: 2-stroke
• type: Piston Kit Top End Gasket Set
• machine type: Off-road Motorcycle
• items included: Gasket, Wrist Pin, Piston, Circlips, Piston Rings
• cylinder bore diameter: 66.40mm
• piston diameter: 66.35mm
• material: Hypereutectic Cast Aluminum
• country/region of manufacture: Taiwan

shipping pistondon:

• transit: 5-9 Days
• service: USPS Ground Advantage, USPS Priority Mail, USPS Priority Mail Express
• carrier: USPS
• class: Standard, Expedited
• type: Fixed
• cost: $0.00

payments pistondon:

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

offer pistondon:

• started: June 18, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 4

seller pistondon:

• city: Interlochen, Michigan
• rating: 98.5%
• # reviews: 90031

general pistondon:

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

returns pistondon:

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

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