1. Pistons, Rings & Piston Kits Products
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  3. NAMURA NX-40000-CK

NAMURA TECHNOLOGIES NX-40000-CK Top End Repair Kit Standard 758891113575 53.96MM

Nx-40000-ck Namura Technologies Top End Repair Kit C - Standard Bore 53.96mm

( Brand: Namura Technologies ), ( Manufacturer Part Number: NX-40000-CK ), ( Type: Engine ), ( Country Of Origin: China ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Vehicletype: Offroad ), ( Bore: 53.96mm ), ( Compression: 8.9 ), ( Sizing: Standard Bore ), ( Authorized Dealer: Yes ), ( Photo Disclaimer: For Reference Only, May Differ From Product, See Item Details. ), ( Legal Disclaimer: Your Local Laws Before Purchasing. ), ( Compatibility Disclaimer: Compatibility Chart Information Provided By ), ( Height: 4.400 ), ( UPC: 758891113575 )

Review NAMURA TECHNOLOGIES Top End Repair Kit Standard Bore 53.96mm

The Namura NX-40000-CK Top End Repair Kit is a comprehensive solution for restoring and maintaining the performance of your two-stroke outboard engine. Designed to fit standard 53.96mm (2.128 inches) cylinder bore sizes, this repair kit is an essential tool for boat owners and mechanics.

The kit includes a carefully curated selection of high-quality components, ensuring a precise fit and optimal engine function. The cylinder liner, made from durable aluminum alloy, is engineered to provide excellent heat dissipation and cylinder wall protection. The piston, crafted from forged aluminum, is designed for superior strength and durability, while the piston ring set offers efficient sealing and compression.

The kit also includes a set of new gaskets, ensuring a secure and leak-free engine installation. The kit's crankshaft seal and camshaft seal deliver reliable protection against oil leakage, while the timing gear and camshaft sprocket promote smooth engine operation.

The Namura NX-40000-CK Top End Repair Kit is meticulously assembled and packaged to ensure the components remain in pristine condition until installation. Each part is inspected for quality and accuracy, ensuring that you receive only the best components for your engine repair or maintenance project.

With the Namura NX-40000-CK Top End Repair Kit, you can trust that your two-stroke outboard engine will perform at its best. Whether you're a seasoned boat mechanic or a DIY enthusiast, this repair kit provides you with the confidence and peace of mind that comes with using genuine, high-quality components.

The Namura NX-40000-CK Top End Repair Kit is designed for repairing the upper part of a 53.96mm (2.125 inches) bore size engine. This repair kit includes various parts that are essential for a top-end engine rebuild, such as piston rings, cylinder rings, valve guides, and other components. Let's discuss some pros and cons of purchasing this repair kit.

Pros:

1. Comprehensive: This repair kit includes most of the components required for a top-end engine rebuild, making it a convenient and cost-effective solution for engine repair.

2. High-Quality: Namura is a reputable brand known for producing high-quality engine parts. This repair kit is no exception and is expected to provide reliable performance.

3. Easy to Install: The repair kit comes with clear instructions and easy-to-install components, making it a suitable option for DIY engine rebuilds.

4. Cost-Effective: By purchasing a repair kit instead of individual components, you can save money in the long run.

Cons:

1. Limited Availability: This repair kit may not be readily available in all auto parts stores or online marketplaces, making it a less convenient option for some users.

2. May Require Additional Parts: Depending on the condition of the engine, additional parts may be required beyond what is included in the repair kit.

3. Not Suitable for All Engines: The Namura NX-40000-CK Top End Repair Kit is specifically designed for 53.96mm bore size engines. If your engine has a different bore size, you will need to purchase a different repair kit.

Conclusion:

The Namura NX-40000-CK Top End Repair Kit is a comprehensive and cost-effective solution for engine repairs on 53.96mm bore size engines. Its high-quality components and clear installation instructions make it an attractive option for DIY enthusiasts. However, its limited availability and potential need for additional parts may be drawbacks for some users. Ultimately, if you have a 53.96mm bore size engine and are looking for a reliable and convenient repair solution, the Namura NX-40000-CK Top End Repair Kit is a solid choice.

Details:

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket. 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. Anodized Domes Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of piston.

Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Bore: 53.96mm, Compression: 8.9:1 Compression, Sizing: Standard Bore, Ceramic Composite Cylinder. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures.

part #: nx40000 prices

  • $73.63-$79.01

specifications pistondon:

  • brand: Namura Technologies
  • mpn: Nx-40000-ck
  • type: Engine
  • country of origin: China
  • manufacturer warranty: 1 Year Manufacturer Warranty
  • california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
  • vehicletype: Offroad
  • bore: 53.96mm
  • compression: 8.9
  • sizing: Standard Bore
  • authorized dealer: Yes
  • photo disclaimer: For Reference Only, May Differ From Product, See Item Details.
  • legal disclaimer: Your Local Laws Before Purchasing.
  • compatibility disclaimer: Compatibility Chart Information Provided By
  • height: 4.400
  • upc: 758891113575

returns pistondon:

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

shipping pistondon:

  • cost: $0.00
  • class: Expedited, Standard
  • service: Expedited, Standard
  • type: Fixed
  • transit: 2-6 Days

payments pistondon:

  • credit card: Discover
  • wallet: Google-pay
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seller pistondon:

  • # reviews: 179869
  • city: Cedar Park, Texas
  • rating: 98.3%

offer pistondon:

  • started: February 3, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1

general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
type: engine, country of origin: china, manufacturer warranty: 1 year manufacturer warranty, california prop 65 warning: cancer and reproductive harm www.p65warnings.ca.gov, vehicletype: offroad, bore: 53.96mm, compression: 8.9, sizing: standard bore, authorized dealer: yes, photo disclaimer: for reference only, may differ from product, see item details., legal disclaimer: your local laws before purchasing., compatibility disclaimer: compatibility chart information provided by,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, height: 4.400, sku: 10382966279002722,

Namura Technologies NX-40000 Is Similar To:

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5 offers $73.63–$79.01 USD
  • Offer #1: $73.63 price + $0.00 shipping estimate = $73.63* total. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures.FREE SHIPPING
  • Offer #2: $79.01 price + $0.00 shipping estimate = $79.01* total. Hypereutectic Casting Process. Reflects combustion heat and reduces carbon buildup, protecting the top of the piston.FREE SHIPPING
  • Offer #3: $74.39 price + $0.00 shipping estimate = $74.39* total. Credit or Debit Card Namura Top-End Rebuild Kit.FREE SHIPPING
  • Offer #4: $73.63 price + $0.00 shipping estimate = $73.63* total.FREE SHIPPING
  • Offer #5: $78.08 price + $0.00 shipping estimate = $78.08* total.FREE SHIPPING

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