NAMURA FX-40049-CK1 Top End Repair Kit 758891123314 0.02MM

( Brand: Namura ), ( Manufacturer Part Number: FX-40049-CK1 ), ( UPC: 758891123314 )

Review NAMURA Top End Repair Kit 0.02mm #fx-40049-ck1 For Yamaha fits YZ450F 2018–2019

Introducing the Namura FX-40049-CK1 Top End Repair Kit specifically designed for the Yamaha YZ450F motorcycles manufactured in the years 2018 and 2019. This comprehensive repair kit includes all the necessary components to restore the engine's performance and ensure optimal operation.

The heart of this kit is the 0.02mm overboring kit, which allows you to enlarge the cylinder bore by 0.02mm to accommodate larger pistons. This results in increased power output, improved combustion efficiency, and enhanced engine durability.

The kit contains a set of high-quality, precision-machined pistons designed to provide a perfect fit and superior performance. The pistons are made from a strong and durable material, ensuring they can withstand the rigors of high-performance riding.

Moreover, the kit includes a set of rings, including compression rings, oil control rings, and skirt rings. These rings are designed to seal the piston to the cylinder wall, prevent oil from leaking past the piston, and ensure efficient combustion.

Additionally, the Namura FX-40049-CK1 Top End Repair Kit comes with a set of cylinder liners. These liners provide a smooth, even surface for the piston to slide against, reducing friction and wear, and ensuring quiet and efficient engine operation.

The kit also includes a set of piston pins, which serve as the connection between the piston and the connecting rod. These pins are made from a strong and durable material to ensure they can handle the high loads and stresses placed upon them during engine operation.

Finally, the kit includes a set of gaskets, which are essential for sealing the cylinder head and ensuring a proper compression chamber. These gaskets are made from a high-quality material and are designed to provide a perfect seal to prevent leaks and improve engine efficiency.

In conclusion, the Namura FX-40049-CK1 Top End Repair Kit is an essential tool for any Yamaha YZ450F owner looking to enhance the performance and durability of their engine. This comprehensive kit includes all the necessary components to perform a top-end rebuild, ensuring optimal engine operation and maximum power output.

Buying the Namura FX-40049-CK1 top end repair kit for the Yamaha YZ450F 2018-2019 models can be a beneficial investment for motorcycle enthusiasts seeking to extend the life of their engines or improve its performance. Here are some pros and cons to consider before making a purchase:

1. High-quality Japanese manufacturing: Namura is a renowned Japanese aftermarket parts manufacturer known for producing high-quality components.

2. Compatibility: This kit is specifically designed for the Yamaha YZ450F 2018-2019 models, ensuring a perfect fit and function.

3. Cost-effective: This kit offers a more affordable alternative to buying new OEM parts or having the engine rebuilt by a professional shop.

4. Improved performance: Upgrading the top end components can lead to increased power and better throttle response.

5. Enhanced durability: The kit includes new and improved components, such as piston rings and valves, which can help prevent engine wear and tear.

1. Installation complexity: Installing the kit requires a certain level of mechanical expertise, and it may be time-consuming for those without experience.

2. Tools and resources: To complete the installation, you will need access to some specialized tools and resources.

3. Risk of damage: Improper installation could potentially cause engine damage, leading to additional costs and downtime.

4. Time commitment: Depending on your mechanical skills and available resources, the installation process could take several hours.

The Namura FX-40049-CK1 top end repair kit offers several advantages for Yamaha YZ450F 2018-2019 owners. It provides high-quality, Japanese-manufactured components that are designed to fit and perform perfectly. This kit can lead to improved engine performance, increased power, and enhanced durability. However, it does require a certain level of mechanical expertise and resources to install. Additionally, there is a risk of damage if not installed correctly. Ultimately, the decision to purchase this kit depends on your comfort level with mechanical work and your budget for engine upgrades.

If you are confident in your mechanical abilities and willing to invest the time and resources required for the installation, the Namura FX-40049-CK1 top end repair kit could be an excellent investment for extending the life of your engine and improving its performance. However, if you are unsure about your mechanical skills or prefer a more turnkey solution, it may be worth considering other options, such as having the engine rebuilt by a professional shop or purchasing new OEM parts.

Details:

Piston comes with rings. Comes with enough components to service one engine. Everything for a top end rebuild in one box. NOTE: Image is for reference only, actual product may vary slightly depending on your specific application.

Namura Top End Repair Kit 0.02mm #FX-40049-CK1 for Yamaha YZ450F 2018 -2019: top-end repair kit can help improve the performance of your ride and keeping it running in peak condition. Top end gasket kit.

part #: fx40049ck1 prices

• $203.10-$236.60

specifications pistondon:

• for models: Yz450f
• for makes: Yamaha
• for years: 2018-2019
• brand: Namura
• mpn: Fx-40049-ck1
• upc: 758891123314

seller pistondon:

• rating: 99.3%
• # reviews: 621174
• city: Grand Rapids, Michigan

offer pistondon:

• started: August 5, 2025
• options: Ship-to-home
• quantity: 4
• availability: In Stock
• sold: 0

general pistondon:

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

returns pistondon:

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

shipping pistondon:

• type: Fixed
• transit: 2-4 Days
• class: Standard
• service: UPS Ground
• cost: $0.00
• carrier: UPS

payments pistondon:

• wallet: Apple-pay
• credit card: Diners-club
• other

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