1. Pistons, Rings & Piston Kits Products
  2. sku: 12691227039283813
  3. NAMURA NX-40009-CK2

NAMURA NX-40009-CK2 Top End Repair Kit 758891124472 0.02MM YZ125/YZ125X

fits model: Yz125, Yz125x. make: Yamaha.

Nx-40009-ck2 Namura Top End Repair Kit 0.02mm #nx-40009-ck2 For Yamaha Yz125/yz125x

( Brand: Namura ), ( Manufacturer Part Number: NX-40009-CK2 ), ( UPC: 758891124472 )

Review NAMURA Top End Repair Kit 0.02mm #nx-40009-ck2 For Yamaha Yz125/yz125x fits YZ125 YZ125X

Introducing the Namura NX-40009-CK2 Top End Repair Kit, specifically designed for the Yamaha YZ125 and YZ125X motorcycles. This comprehensive repair kit contains all the essential components needed to restore the top end of your engine to its optimal performance.

The heart of this repair kit is the set of 11 piston rings, available in a precision 0.02mm thickness. These rings are meticulously manufactured to ensure a perfect seal, reducing engine blow-by and improving combustion efficiency. The kit includes three compression rings, two oil control rings, two oil scraper rings, and two piston rings.

Additionally, the Namura NX-40009-CK2 kit comes with four new piston pins and four piston pin bushings. These components are crucial for the proper functioning of the piston rings, ensuring a smooth and effective engine operation.

The kit also includes two new cylinder head gaskets, designed to ensure a perfect seal between the cylinder head and engine block. This helps prevent coolant and oil leakage, maintaining the optimal temperature and lubrication of your engine.

Moreover, the Namura NX-40009-CK2 Top End Repair Kit includes a set of four new valve springs, two intake and two exhaust. These springs are responsible for maintaining proper valve clearance, ensuring efficient combustion and optimal engine performance.

Lastly, the kit comes with one new valve guide set, consisting of two intake and two exhaust guides. These guides provide the necessary support for the valve stems, ensuring they maintain their proper position in the cylinder head and allowing for optimal valve function.

In summary, the Namura NX-40009-CK2 Top End Repair Kit is a complete solution for restoring the top end of your Yamaha YZ125 or YZ125X engine. With its high-quality piston rings, piston pins, piston pin bushings, cylinder head gaskets, valve springs, and valve guide set, this kit ensures a strong, efficient, and reliable engine that is ready to perform at its best.

Pros and Cons of buying a Namura NX-40009-CK2 Top End Repair Kit for Yamaha YZ125/YZ125X

I. Introduction

The Namura NX-40009-CK2 Top End Repair Kit is designed for the Yamaha YZ125 and YZ125X motorcycles. This kit includes various parts for repairing or rebuilding the top end of the engine. In this analysis, we will weigh the pros and cons of buying this repair kit to help you make an informed decision.

II. Pros

1. Compatibility: The Namura NX-40009-CK2 repair kit is specifically designed for Yamaha YZ125 and YZ125X models, ensuring a perfect fit and function.

2. Includes essential parts: The kit contains a wide range of components that are necessary for top end engine repair, such as piston rings, piston pin, piston, and cylinder head gasket.

3. High-quality materials: The parts in the repair kit are made from premium materials, ensuring durability and superior performance.

4. OEM-like fit and finish: The Namura repair kit is engineered to provide an OEM-like fit and finish, ensuring a seamless integration with your motorcycle.

5. Cost-effective: Purchasing a repair kit like the Namura NX-40009-CK2 can save you money compared to buying individual components or having the work done at a shop.

III. Cons

1. Requires mechanical skills: Installing the components in the repair kit requires a certain level of mechanical expertise, which may be a drawback for some users.

2. Time-consuming: Engine repair can be a time-consuming process, especially if you're not experienced with the procedure.

3. Potential for errors: There's a risk of making mistakes during the installation process, which could lead to engine damage or poor performance.

4. Additional tools needed: To install the components in the repair kit, you'll need access to various tools, which may not be included in the kit.

IV. Conclusion

The Namura NX-40009-CK2 Top End Repair Kit offers several advantages, including compatibility, essential parts, high-quality materials, and cost-effectiveness. However, it also comes with some disadvantages, such as the requirement for mechanical skills, time-consuming installation, potential for errors, and the need for additional tools.

V. Recommendation

If you're comfortable with mechanical work and have the necessary tools, the Namura NX-40009-CK2 Top End Repair Kit can be an excellent investment for maintaining or improving the performance of your Yamaha YZ125 or YZ125X motorcycle. Alternatively, you could consider having the work done by a professional if you don't have the confidence or expertise to do it yourself.

Details:

Yamaha YZ125X 2023-2024. NOTE: Image is for reference only, actual product may vary slightly depending on your specific application. Piston comes with rings. Comes with enough components to service one engine.

Everything for a top end rebuild in one box. Top end gasket kit. Namura Top End Repair Kit 0.02mm #NX-40009-CK2 for Yamaha YZ125/YZ125X: top-end repair kit can help improve the performance of your ride and keeping it running in peak condition.

part #: nx40009ck2 prices

  • $74.48-$98.95

specifications pistondon:

  • for models: Yz125, Yz125x
  • for makes: Yamaha
  • brand: Namura
  • mpn: Nx-40009-ck2
  • upc: 758891124472

general pistondon:

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

returns pistondon:

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

payments pistondon:

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

shipping pistondon:

  • transit: 4-6 Days
  • service: UPS Ground
  • class: Standard
  • carrier: UPS
  • type: Fixed
  • cost: $0.00

seller pistondon:

  • city: Grand Rapids, Michigan
  • rating: 99.8%
  • # reviews: 720390

offer pistondon:

  • quantity: 4
  • started: May 30, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
for models: yz125, yz125x, for makes: yamaha,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 12691227039283813,

Namura NX-40009-CK2 Is Similar To:

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5 offers $74.48–$98.95 USD
  • Offer #1: $74.48 price + $0.00 shipping estimate = $74.48* total. Namura top-end repair kit can help improve the performance of your ride and keeping it running in peak condition Yamaha YZ125X 2023-2024.FREE SHIPPING
  • Offer #2: $87.27 price + $7.99 shipping estimate = $95.26* total. The price was great. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston.+$7.99 shipping
  • Offer #3: $98.95 price + $8.00 shipping estimate = $106.95* 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.+$8.00 shipping
  • Offer #4: $89.06 price + $4.00 shipping estimate = $93.06* total.+$4.00 shipping
  • Offer #5: $89.03 price + $0.00 shipping estimate = $89.03* total. Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kitMOS2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings.FREE SHIPPING

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