fits model: 800. make: Polaris. year: 2008–2010.

( Brand: Spi ), ( Manufacturer Part Number: SM-09247 ), ( Part Type: Ring Piston )
Introducing the SPI SM-09247 Standard Dual Ring Piston, specifically designed for Polaris 800 Snow models from 2008 to 2010. This piston is an essential component of your snowmobile's engine, ensuring optimal performance and reliability.
Measuring 85mm in bore size, this dual ring piston boasts a high-quality forged steel construction, ensuring durability and resistance to the extreme conditions often encountered during snowmobiling. The piston rings are made of precision-engineered materials to provide an ideal seal between the piston and the cylinder wall, reducing blow-by gases and enhancing combustion efficiency.
The dual ring design guarantees a perfect balance between compression and oil control. The first compression ring, located near the piston crown, maximizes combustion efficiency and power output. The second oil control ring, positioned closer to the piston skirt, maintains an even oil film on the cylinder wall, minimizing friction and extending engine life.
This SPI SM-09247 piston also features a polished finish, not only enhancing its visual appeal but also reducing friction and facilitating a smoother engine operation. The piston skirt is designed with a slight taper, ensuring a proper fit in the cylinder bore and reducing the risk of piston slap.
Replacing your worn-out or damaged piston with the SPI SM-09247 Standard Dual Ring Piston is an investment in the longevity and performance of your Polaris 800 Snow vehicle. It's essential to use a high-quality piston like this one to ensure your engine runs efficiently and reliably, allowing you to enjoy your snowmobiling adventures to the fullest.
The SPI SM-09247 standard dual ring piston is a crucial component for the Polaris 800 Snow models from 2008 to 2010 with an 85mm bore size. Replacing worn-out or damaged pistons can significantly improve engine performance and longevity. In this analysis, we will discuss the pros and cons of purchasing this piston to help you make an informed decision.
Pros:1. Enhanced Engine Performance: A new piston can restore lost power and improve overall engine performance. Worn-out pistons can lead to reduced compression, poor fuel efficiency, and increased engine noise.
2. Improved Engine Longevity: By replacing the piston, you can prevent further damage to other engine components, such as the cylinder, crankshaft, or connecting rods.
3. OEM (Original Equipment Manufacturer) Part: The SPI SM-09247 piston is a direct factory replacement, ensuring a perfect fit and optimal engine operation.
4. High-Quality Material: The piston is manufactured from high-quality materials, such as forged aluminum, ensuring durability and resistance to engine heat.
Cons:1. Cost: Replacing a piston is a significant investment, especially for older snowmobiles. The cost of the piston alone may be high, and additional labor and installation fees may apply.
2. Time-Consuming: Installing a new piston requires disassembling the engine, which can be a time-consuming process. It may be more convenient to purchase a rebuilt engine or have the snowmobile serviced by a professional.
3. Risk of Damage During Installation: Improper installation of the piston can lead to damage, such as bent connecting rods or a damaged crankshaft. It is crucial to follow the manufacturer's instructions carefully during installation.
Conclusion:The decision to purchase the SPI SM-09247 standard dual ring piston for your Polaris 800 Snow model from 2008 to 2010 (85mm bore size) depends on your specific situation, budget, and personal preferences. If you value improved engine performance and longevity, and are willing to invest the time and money, then this piston is an excellent choice. However, if the cost and time commitment are concerns, you may consider alternative options, such as a rebuilt engine or professional servicing. Ultimately, the decision is yours, and I recommend carefully considering the pros and cons before making a purchase.
Recommendation:If you decide to purchase the SPI SM-09247 standard dual ring piston, ensure that you follow the manufacturer's instructions carefully during installation to avoid any potential damage. Additionally, consider investing in a high-quality piston ring set and gasket to ensure optimal engine performance and longevity. If you are unsure about the installation process, consider having a professional mechanic install the new piston for you.
Made in Taiwan. Piston weight is compatible with original piston. Compatible with Polaris model's below: 2008 Dragon RMK 800. T-Molly series with Teflon-Molybdenum coating.
All SPI pistons, rings, pins cir clips are manufactured to OEM specifications. 2009 Dragon RMK 800. Manufactured by SPI. Pistons are for standard bore size 85.00mm.
Pistons are dual ring design. T-Molly series pistons reduce friction, resist seizure improve durability. Includes 2 pistons, ring sets, wrist pins cir clips as pictured.