fits model: Rmk, 500, Liberty. make: Polaris. year: 2001.

( Manufacturer Part Number: 2201555 )
The Polaris Liberty 2001 500 Crank Case Engine RMK snowmobile is a powerhouse of winter transportation dedicated to providing unparalleled performance and reliability. This engine variant, specifically identified by the product number 2201555, is a part of the RMK (Rossignol Mountain King) series engineered for exceptional off-trail riding experience.
Design and construction:The Polaris Liberty engine boasts a striking design, with a crankshaft-mounted crankcase that enhances front-end strength. This translates into better tracking and improved handling, crucial factors in snowmobiling off-trail. The single-cylinder, two-stroke engine is both lightweight and robust, ensuring effortless maneuverability and outstanding durability.
Performance:At its heart, the Polaris Liberty 2001 500 engine boasts a displacement of 500 cubic centimeters, coupled with an aggressive 11.0:1 compression ratio. The result is an impressive 115 horsepower output, promising quick acceleration, smooth power delivery, and responsive throttle control. Moreover, the engine is equipped with an oversized intake and sealed crankcase ventilation system to ensure efficient airflow and reduced oil consumption.
Advanced features:The 2001 Polaris Liberty engine was designed with state-of-the-art technology such as Electronic Fuel Injection (EFI). EFI optimizes fuel metering for various operating conditions to ensure peak performance, improved fuel economy, and easier starting in difficult weather conditions. Additionally, an automatic oiling system guarantees optimal oil flow to the clutch and engine components, extending the lifespan of these critical elements.
Durability and maintenance:The Polaris Liberty 2001 500 engine is built to withstand the rigorous conditions of snowmobiling. Its robust components, including Ski-Dool-designed piston, Ringseal rings, and high-strength connecting rods, guarantee exceptional strength and longevity. Regular maintenance, including oil changes, air filter replacements, and simple tune-ups, ensures continued optimal performance and engine life.
In summary, the Polaris Liberty 2001 500 Crank Case Engine RMK snowmobile, specified by the product code 2201555, delivers exceptional power, performance, and durability, catering to the demands of off-trail snowmobiling. With its advanced features, reliable construction, and ease of maintenance, this engine is an excellent choice for those seeking a trustworthy, robust, and powerful snowmobile engine.
The 2001 Polaris Liberty 500 with a RMK crank case engine model number 2201555 is a snowmobile used for recreational and utility purposes. This engine is a crankcase engine and is known for its reliability and power. Here are some pros and cons of buying this particular engine for your Polaris Liberty snowmobile.
Pros:1. Power: The 500-cc engine provides enough power to tackle various snow conditions with ease, ensuring a thrilling riding experience.
2. Fuel efficiency: The engine is relatively fuel-efficient, which means you'll spend less time filling up the gas tank and more time enjoying your snowmobile.
3. Proven reliability: Polaris is a reputable brand, and the Liberty snowmobile, in particular, is known for its durability. Having a crankcase engine from this manufacturer gives you peace of mind.
4. Versatility: The RMK crankcase engine is suitable for both recreational and utility applications, making it a popular choice for power-seeking riders and those who demand versatility.
Cons:1. Maintenance: Like any external combustion engine, this snowmobile engine requires regular maintenance. You will need to change the air filter, oil, and spark plugs periodically.
2. Complexity: Compared to simpler engines, the crankcase design is more complex, meaning more parts to wear down and potentially more frequent repairs or replacements.
3. Cooling system: Cooling the engine efficiently during long, intense rides can be challenging, requiring a proper cooling strategy or extra maintenance to ensure the engine stays in good condition.
Conclusion:The 2001 Polaris Liberty 500 with the RMK crankcase engine model number 2201555 offers several advantages, such as power, fuel efficiency, and proven reliability. However, it also comes with certain drawbacks like increased maintenance requirements, complexity, and potential cooling issues. Ultimately, a purchase decision depends on your personal preferences and usage requirements. If you prioritize power and versatility, the engine might be an excellent choice, but if the cons outweigh the pros for you, it might be worth considering alternative options.
Recommendation:If you already own a Polaris Liberty 500 and are in the market for a replacement engine, the 2201555 RMK crankcase engine is likely a valuable upgrade, especially if you frequently ride in demanding conditions. However, if you're in the market for a new snowmobile, it's essential to consider the cons mentioned and maybe explore other engines to ensure the best fit for your personal needs and preferences. Also, always ensure that the engine is in good working condition, as a functional and properly maintained engine will provide you with a great riding experience and peace of mind.
Engine lower end case halves and water oil pumps from a running 2001 Polaris Rmk 500 Liberty non vies. Overall reasonable used condition with normal signs of use and age.