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  3. NAMURA NA-50012-4K

NAMURA TECHNOLOGIES NA-50012-4K Top End Repair Kit Atv Utv 1.00MM 87.93MM Atv/utv Pwc

Na-50012-4k Namura Technologies Top End Repair Kit - 1.00mm Oversize To 87.93mm Motorcycle Atv/utv Pwc

( Brand: Namura Technologies ), ( Manufacturer Part Number: NA-50012-4K ), ( Make: Polaris )

Review NAMURA TECHNOLOGIES Top End Repair Kit 1.00mm Oversize To 87.93mm Motorcycle Atv/utv Pwc

Introducing the Namura NA-50012-4K Top End Repair Kit, specifically designed for ATVs, UTVs, and Personal Watercraft (PWC) with a cylinder diameter of 1.00mm and a length of 87.93mm. This repair kit is an essential collection of high-quality components, engineered to help restore your engine to optimal performance.

The kit includes an array of meticulously crafted parts. Beginning with the piston rings, these premium components are manufactured to ensure a perfect seal, preventing oil leaks and enhancing combustion efficiency. The piston rings come in sets of three, including the compression ring, the oil control ring, and the secondary oil control ring, catering to various engine models and conditions.

Moreover, the kit includes a set of precision-machined piston pins. These pins are designed to minimize friction and wear, allowing the piston to move smoothly within the cylinder, ultimately resulting in a more efficient and responsive engine.

Additionally, the Namura NA-50012-4K Top End Repair Kit includes a pair of cylinder head gaskets. These gaskets are meticulously designed to prevent coolant and oil from mixing, ensuring a stable and reliable engine operating environment. The gaskets are manufactured using advanced materials that provide excellent sealing properties, ensuring a long-lasting repair.

The kit also comprises a cylinder head o-ring, which is critical in maintaining the proper sealing of the cylinder head to the engine block. This o-ring is engineered to deliver unparalleled sealing performance, preventing coolant and oil leaks and ensuring a leak-free engine.

Lastly, the Namura NA-50012-4K Top End Repair Kit includes a set of high-performance valve guides. These guides are designed to provide a precise fit for the valves, ensuring optimal valve function and engine performance. The valve guides are manufactured using advanced materials that provide excellent durability and thermal stability, ensuring a long-lasting repair.

In conclusion, the Namura NA-50012-4K Top End Repair Kit is a comprehensive collection of premium engine components, specifically designed to help restore your ATV, UTV, or Personal Watercraft engine to optimal performance. With its high-quality piston rings, piston pins, cylinder head gaskets, cylinder head o-ring, and valve guides, this repair kit offers a reliable and effective solution for top end engine repairs.

Pros and Cons of buying a NAMURA NA-50012-4K Top End Repair Kit for ATV/UTV/PWC

1. Pros:

a. High-quality components: This repair kit from NAMURA is known for its top-tier materials and precise fit, ensuring a reliable and long-lasting repair.

b. Comprehensive kit: The NA-50012-4K includes all the necessary parts to overhaul the top end of an ATV, UTV, or PWC engine, minimizing the need for additional purchases.

c. Easy installation: The kit's components are designed to fit seamlessly into engines, making the installation process more straightforward and efficient.

d. Cost-effective: Investing in a high-quality repair kit like this can save significant money in the long run by reducing the need for frequent repairs or engine replacements.

2. Cons:

a. Expensive upfront cost: The NA-50012-4K is a premium repair kit, and its price may be a barrier for some users.

b. Not suitable for beginners: The complexity of the repair process may be overwhelming for those without engine repair experience. It is recommended that this kit be used by experienced mechanics or engine builders.

c. May require additional tools: Depending on the specific engine being repaired, additional tools may be necessary for the installation process, which could add to the overall cost and time investment.

Conclusion:

The NAMURA NA-50012-4K Top End Repair Kit offers several advantages, including high-quality components, a comprehensive kit, easy installation, and cost-effectiveness in the long run. However, the upfront cost may be a concern for some, and this kit is not recommended for beginners due to its complexity and the potential need for additional tools.

Recommendation:

If you are an experienced mechanic or engine builder, the NAMURA NA-50012-4K Top End Repair Kit is an excellent investment for repairing the top end of an ATV, UTV, or PWC engine. Its premium materials, comprehensive nature, and efficient installation process make it a worthwhile investment for ensuring reliable engine performance and minimizing future repair costs. However, for those without the necessary experience or tools, it may be more prudent to consider alternative, more accessible repair options.

Details:

MOS2 Teflon/Molybdenum Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Any damage claims may be exchanged for the identical item only. 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 75% stronger than non-anodized. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Sold as: Each. Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket.

186-50124 Top End Repair Kit.

part #: na500124k prices

  • $209.95-$417.88

specifications pistondon:

  • brand: Namura Technologies
  • mpn: Na-50012-4k
  • make: Polaris

offer pistondon:

  • sold: 0
  • options: Ship-to-home
  • started: December 10, 2025
  • availability: In Stock
  • quantity: 4

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:

  • class: Economy, Standard, Expedited
  • cost: $0.00
  • service: Economy, Standard, Expedited
  • transit: 3-8 Days
  • type: Fixed

payments pistondon:

  • other
  • credit card: Visa
  • wallet: Paypal

seller pistondon:

  • city: Loudon, Tennessee
  • # reviews: 603642
  • rating: 99.4%
manufacturer: polaris, category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 9250650555815632,

Namura Technologies NA-50012-4K Is Similar To:

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3 offers $209.95–$417.88 USD
  • Offer #1: $209.95 price + $0.00 shipping estimate = $209.95* total. 2015 Scrambler 850 models. Manufactured by Namura.FREE SHIPPING
  • Offer #2: $417.88 price + $0.00 shipping estimate = $417.88* 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.FREE SHIPPING
  • Offer #3: $341.79 price + $23.57 shipping estimate = $365.36* total.+$23.57 shipping

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