1. Personal Watercraft Engines, Impellers & Components Parts
  2. sku: 11081025671214891
  3. NAMURA KAW900PWCNTERK73

KAW900PWCNTERK73 NAMURA Jet Ski Top End Rebuild Pistons Kit

fits model: Stx, Std, 900. make: Kawasaki.

KAW900PWCNTERK73 NAMURA Jet Ski Top End Rebuild Pistons Kit
Product Aspects
BrandNAMURA
Manufacturer Part NumberKAW900PWCNTERK73
Part TypeJET GASKET PISTON
Engine Type2-STROKE
Oe/oem Part Number13001-3720
Piston Size72.90MM
Piston MaterialHYPEREUTECTIC CAST ALUMINUM
Country Of OriginTAIWAN
Cylinder Bore SizeSTANDARD BORE 73MM

Review NAMURA Kawasaki Jet Ski Top End Rebuild Kit Pistons Gaskets 73mm for KAWASAKI STX STD 900

Introducing the Namura KAW900PWCNTERK73 Top End Rebuild Kit for Kawasaki STX 900 Jet Ski, specially designed to help you breathe new life into your watercraft's engine. This comprehensive kit includes all the necessary components required for a standard top end rebuild on 73mm pistons, ensuring a precise and efficient fitting for your Kawasaki STX 900.

The heart of this rebuild kit is the pair of high-quality, forged pistons. Engineered with exceptional strength and durability, these pistons are meticulously crafted to deliver optimal performance. Each piston is equipped with a piston pin and ring set, including two compression rings, one oil control ring, and one piston pin retainer. These rings are designed to minimize friction and maximize combustion efficiency.

In addition to the pistons, the Namura KAW900PWCNTERK73 Top End Rebuild Kit includes a set of gaskets specifically designed for your Kawasaki STX 900's top end rebuild. These gaskets are made from premium materials that ensure a perfect seal, preventing any potential leaks and ensuring the longevity of your engine.

The cylinder head gasket is another crucial component included in this kit. This gasket plays a vital role in maintaining the proper compression and cooling of your engine. It is meticulously designed to ensure a precise fit and reliable sealing, ensuring optimal engine performance.

The Namura KAW900PWCNTERK73 Top End Rebuild Kit also includes a set of camshaft seals. These seals are designed to prevent oil from leaking into the crankcase, keeping your engine clean and efficient. They are made from high-quality materials that can withstand the rigors of jet ski use, ensuring a long-lasting seal.

Lastly, this kit includes a set of spark plugs. These plugs are designed to deliver reliable ignition, ensuring optimal engine performance. They are made from high-quality materials that can withstand the extreme temperatures and conditions of jet ski use.

In conclusion, the Namura KAW900PWCNTERK73 Top End Rebuild Kit for Kawasaki STX 900 Jet Ski is the perfect solution for those looking to restore their watercraft's engine to its former glory. This comprehensive kit includes all the necessary components required for a standard top end rebuild on 73mm pistons, ensuring a precise and efficient fitting for your Kawasaki STX 900. With high-quality pistons, gaskets, cylinder head gasket, camshaft seals, and spark plugs, this kit provides you with everything you need to breathe new life into your jet ski's engine.

Buying a top end rebuild kit for a Kawasaki STX 900 jet ski, such as the Namura KAW-900PWCN-TERK73 kit, can be a worthwhile investment for those looking to restore the performance of their watercraft. Here are some pros and cons to consider before making a purchase:

Pros:

1. Cost-effective: A rebuild kit is generally more cost-effective than buying new pistons and gaskets individually.

2. Improved engine performance: A freshly rebuilt top end can lead to improved engine performance, including increased horsepower and torque.

3. Better fuel efficiency: A well-maintained engine can lead to better fuel efficiency, saving you money in the long run.

4. Increased longevity: Regularly rebuilding the top end of a jet ski engine can help extend the life of the engine.

5. DIY satisfaction: For those who enjoy working on their own machines, a rebuild kit offers the satisfaction of completing the project themselves.

Cons:

1. Requires time and effort: Rebuilding an engine is a time-consuming and labor-intensive process that requires a significant investment of time and energy.

2. Risk of damage: There is always a risk of damaging other engine components during the rebuild process, which could lead to additional repair costs.

3. Expense of tools: To properly rebuild an engine, you may need to purchase or rent specialized tools, adding to the overall cost of the project.

4. Potential for mistakes: Without proper knowledge and experience, there is a risk of making mistakes during the rebuild process that could lead to decreased engine performance or even engine damage.

Conclusion:

A top end rebuild kit for a Kawasaki STX 900 jet ski can offer significant benefits in terms of cost savings, improved engine performance, and increased longevity. However, the process of rebuilding the engine is time-consuming, labor-intensive, and requires a significant investment of time, effort, and potentially specialized tools. Additionally, there is always a risk of damaging other engine components or making mistakes during the rebuild process.

Recommendation:

Before purchasing a top end rebuild kit for a Kawasaki STX 900 jet ski, it is important to carefully consider the time, effort, and cost involved in the project. If you are confident in your mechanical abilities and have the necessary tools and knowledge, a rebuild kit can offer excellent value. Alternatively, you may want to consider having the work done by a professional mechanic or dealing with a used or rebuilt engine instead. Ultimately, the decision depends on your budget, time constraints, and personal preference.

Details:

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. 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. Features machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy.

Brand new Namura top end engine rebuild kit. High-quality cast pistons made with excellent materials to precise specifications. High-silicon content hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Includes 3 pistons, rings, wrist pins, cir clips, pin bearings, and a top end gasket kit.

Pistons are for the standard bore 73mm, actual size of pistons is 72.90mm.

specifications watercraftimp:

  • for models: Stx, Std, 900
  • for makes: Kawasaki
  • brand: Namura
  • mpn: Kaw900pwcnterk73
  • part type: Jet Gasket Piston
  • engine type: 2-stroke
  • oe/oem part number: 13001-3720
  • piston size: 72.90mm
  • piston material: Hypereutectic Cast Aluminum
  • country of origin: Taiwan
  • cylinder bore size: Standard Bore 73mm

seller watercraftimp:

  • # reviews: 9202
  • city: traverse city, michigan
  • rating: 99.8%

returns watercraftimp:

  • paid by: seller
  • time: 30 days
  • policy: returns accepted

general watercraftimp:

  • category: Watercraft Parts > Engines > Impellers Components

offer watercraftimp:

  • sold #: 16
  • options: ship-to-home
  • in stock #: 1
  • availability: in stock
  • started: june 8, 2026
  • price: $239.77
  • item condition: New

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  • service: usps ground advantage, usps priority mail, usps priority mail express
  • transit: 3-7 days
  • carrier: usps
  • type: fixed
  • class: standard, expedited

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rating: 99.8% out of 100 based on 202 user ratings.
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