fits make: Ski-doo. year: 2007–2012.

( Brand: Namura ), ( Manufacturer Part Number: NA-80001-4RSNOW ), ( Part Type: Ring Piston )
The Na-80001-4R Snow Namura Piston Rings are specifically designed for use in the Ski-Doo V800 040 engine, which is found in select models from 2007 to 2012. These piston rings are essential components of the engine's internal combustion system, responsible for sealing the piston inside the cylinder and preventing the combustion gases from escaping between the piston stroke.
The Na-80001-4R piston rings comprise four rings, all manufactured from high-quality materials to ensure superior durability and performance. The top compression ring, second compression ring, oil control ring, and split ring are all included in this set. They are precision-engineered to meet the exacting specifications of the Ski-Doo V800 040 engine.
The top compression ring plays a crucial role in retaining the proper compression of the engine. This ring ensures efficient combustion by creating an effective seal between the piston and cylinder wall. The second compression ring supports the top compression ring by maintaining a tight seal under high pressure, allowing for improved combustion efficiency and overall engine performance.
The oil control ring plays a vital role in maintaining the engine's oil film, which reduces friction and wear. This ring helps to ensure a consistent oil film is present between the piston and cylinder during combustion, preventing excessive oil consumption and extending engine life.
The split ring completes the piston ring set. This ring's unique design allows it to expand and contract with the piston during engine operation, permitting the piston to reach total top dead center during the intake stroke.
These high-performance piston rings, made for the Ski-Doo V800 040 engine (2007-2012), have been meticulously designed and manufactured for excellent sealing, durability, and engine efficiency. By maintaining a tight seal between the piston and cylinder, these piston rings optimize the engine's performance, ensuring optimal power output and reduced emissions for your Ski-Doo snowmobile. Replacing worn or damaged piston rings with these high-quality alternatives can help improve the engine's longevity and overall reliability.
Na-80001-4RS snow piston rings from Namura are specifically designed for use in Ski-Doo V800 040 engines with a bore size of 92mm and a production year between 2007 and 2012. Here are some pros and cons of purchasing these piston rings:
Pros:1. High-performance design: The Na-80001-4RS piston rings are designed to provide better sealing and improved ring land strength compared to OEM rings. This results in reduced blow-by and improved engine performance.
2. Designed for cold weather use: These piston rings are suitable for use in cold weather conditions, making them an ideal choice for those living in colder climates or using their Ski-Doo regularly in freezing temperatures.
3. Longer ring life: The rings are made from high-quality materials that ensure longevity and durability.
4. Improved engine efficiency: By reducing blow-by and improving sealing, the rings help the engine run more efficiently, resulting in better fuel economy and reduced exhaust emissions.
Cons:1. Higher price point: Na-80001-4RS piston rings may cost more than OEM piston rings, and the upfront investment could be a deterrent for some buyers.
2.potential install difficulty: Installation of these piston rings may require some technical expertise and specialized tools, so there's a chance that some DIY enthusiasts may have difficulty installing the rings themselves.
3. No OEM warranty: Since these are aftermarket rings, they don't come with the same factory warranty as OEM rings.
Conclusion:Na-80001-4RS snow piston rings from Namura offer several advantages over OEM rings, including improved performance, longer ring life, and suitability for cold weather use. However, they come with a higher price point and potential installation challenges. If you are a performance enthusiast or someone who lives in a cold climate and frequently uses your Ski-Doo in extreme temperatures, these piston rings could be an excellent investment. If price is a major concern or if you're not comfortable with the installation process, OEM piston rings may be a more suitable choice. Ultimately, it's essential to weigh the pros and cons carefully and decide based on your specific needs and budget.
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Manufactured by Namura kit includes 4 compression rings, 2 oil rings scraper you get exactly what is pictured are for.
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040 over bore size - 92.
There is no combined shipping discount.