fits model: Rmk, 650, 850. make: Polaris. year: 2020–2023.

( Manufacturer Part Number: 2208236 ), ( Type: Crankcase ), ( Country/region Of Manufacture: United States )
The Polaris 2208236 crankcase engine is designed specifically for use in Polaris RMK 650 and 850 Snowmobiles produced in the 2020 to 2023 model years. This engine is an essential component of these snowmobiles and is responsible for powering the vehicle's drive system.
The crankcase of this engine is engineered to provide superior strength and durability in even the most challenging winter conditions. The design incorporates a cast iron construction, which not only ensures a long-lasting engine but also offers excellent heat dissipation capabilities. The engine's bore is lined with a wear-resistant cylinder liner that minimizes friction and extends engine life.
The Polaris 2208236 crankcase engine is a two-stroke, liquid-cooled powerhouse that delivers impressive power and performance. It features a state-of-the-art reed valve induction system and electronic fuel injection for efficient combustion and optimal fuel economy. The engine is also equipped with an electric starter and remote start system for quick and easy operation.
One of the standout features of this engine is its ability to utilize Polaris' Boost crate technology. This feature enhances power output and improves engine responsiveness, providing an unparalleled riding experience in deep snow and rough terrain. The engine is also designed to meet EPA and CARB emissions standards.
The crankcase engine comes with a high-performance air filter element and a high-capacity oil cooler to ensure your engine stays cool and free from debris during operation. The engine includes all necessary hardware, including a belt drive system, clutch assembly, flywheel, and necessary gaskets and seals.
Installing this crankcase engine in your Polaris RMK 650 or 850 snowmobile is straightforward, as Polaris provides a detailed installation guide and easy-to-follow instructions. Additionally, the engine comes with a 12-month warranty, ensuring you can confidently enjoy the power and performance of this outstanding engine on your snowmobile.
Overall, the Polaris 2208236 crankcase engine is an essential upgrade for any Polaris RMK 650 or 850 snowmobile rider looking for increased power, improved performance, and enhanced reliability. With its superior cast iron construction, efficient fuel injection system, and Boost technology, this engine delivers a standout riding experience in even the harshest winter conditions.
Polaris RMK 650/850 Boost Crankcase Engines (Model Number: Polaris 2208236) are popular choices for those seeking high-performance snowmobiles. Here are some potential pros and cons of buying this engine:
Pros:1. Increased Power: The Polaris Boost engine delivers more power for better acceleration and improved performance in deep snow.
2. Improved Fuel Economy: The new Boost engine is more fuel-efficient than its predecessors, extending your time on the trails between refills.
3. Better Traction: The added power and torque help improve traction, making it easier to ride in deep snow and climb steep hills.
4. Quieter Operation: The Boost engine is quieter than older models, providing a more pleasant and less fatiguing riding experience.
5. Reduced Emissions: The engine's new technology includes reduced exhaust emissions, making it a more environmentally friendly choice.
Cons:1. Higher Cost: The Polaris Boost engine is more expensive than some other snowmobile engines. The increased price tag may be a deterrent for some buyers.
2. Complexity: The Boost engine is more complex than standard engines, meaning it may require more maintenance and potential for more minor issues.
3. Narrower Ski Design: To accommodate the larger engine, Polaris changed the ski design to a narrower stance, making it less stable in wide, deep snow conditions.
4. Compatibility with Accessories: Due to its unique design, some previously available aftermarket accessories may not be compatible with the Boost engine.
Conclusion:The Polaris 2208236 2020-2023 RMK 650/850 Boost Crankcase Engine offers several advantages, including increased power, improved fuel economy, quiet operation, reduced emissions, and better traction. However, its higher cost, complexity, potential incompatibility with accessories, and narrower ski design are potential downsides. Ultimately, your decision to purchase this engine should depend on your budget, maintenance abilities, and desired riding experience. If you place a high value on excellent performance and an enthusiastic ride, the Polaris Boost engine may be an excellent choice for you.
Would be a good foundation for build after cleaning and inspection. It is evident that the motor had a PTO side top end failure. But it is free of cracks and damage. This is a used intact case.
2020 2023 POLARIS RMK 650 850 BOOST CRANKCASE / MAIN ENGINE CASES. But the case is in usable condition. It show signs of use, dirt, and debris. May need new oil fittings, and water pump shaft.