SPI SM-09279 Standard Piston Snowmobiles 85MM

( Brand: Spi ), ( Manufacturer Part Number: SM-09279 ), ( Part Type: Piston ), ( Country Of Origin: Taiwan )

Review SPI Standard Bore Piston Kits Polaris Snowmobiles Most 85mm fits 800 2011–2016

Introducing the SPI SM-09279 Standard Piston, an essential component for Polaris 800 snowmobiles manufactured between 2011 and 2016 with an 85mm bore size. This piston is meticulously designed to meet the SPI (Ski-Doo Performance Industries) SM standard, ensuring a perfect fit and optimal performance for your snowmobile.

The SPI SM-09279 Standard Piston is engineered using high-quality materials, enabling it to withstand the rigors of snowmobile use. The piston skirt is crafted from a durable, high-tensile alloy that provides superior strength and prevents scuffing. The piston crown is designed to provide excellent compression and combustion efficiency, resulting in improved engine performance and increased power output.

This piston also features a precisely machined piston pin bore, ensuring a secure and reliable fit with the connecting rod. It also includes a chamfered piston pin boss, providing a smooth transition for the piston pin, reducing friction and wear.

The SPI SM-09279 Standard Piston is designed to work seamlessly with the OEM (Original Equipment Manufacturer) crankshaft and connecting rod, ensuring a reliable and efficient operation. It also comes with a piston ring set, including a compression ring, oil control ring, and top ring, which are specifically designed to provide optimal sealing and engine performance.

In conclusion, the SPI SM-09279 Standard Piston is an essential upgrade for any Polaris 800 snowmobile with a 2011 to 2016 model year and an 85mm bore size. With its high-quality materials, precise machining, and optimal fit and performance, this piston will help improve your snowmobile's engine efficiency, power output, and overall reliability.

Buying a SPI (Ski-Doo Performance Industries) SM-09279 standard piston for a Polaris 800 snowmobile model year 2011-2016 with a 85mm bore offers both advantages and disadvantages. Here's a detailed analysis of each:

1. Enhanced Performance: This piston is designed to provide improved combustion efficiency, resulting in increased horsepower and better overall performance.

2. Durability: Made from high-quality materials, this piston is built to withstand the rigors of snowmobiling, providing a longer lifespan compared to OEM parts.

3. Cost-Effective: In the long run, purchasing aftermarket pistons like the SPI SM-09279 can be more cost-effective as they offer better value for money compared to buying OEM parts.

1. Installation Complexity: Installing aftermarket pistons can be a complex process and may require specialized tools and knowledge. It is recommended to have the installation done by a professional to ensure proper fitment and function.

2. Compatibility Issues: While the SPI SM-09279 piston is designed to fit the specified Polaris 800 snowmobile models, there is always a risk of compatibility issues. It is essential to double-check the part number and ensure that it is the correct fit for your specific snowmobile model.

3. Warranty: Aftermarket parts like the SPI SM-09279 piston may not come with the same level of warranty coverage as OEM parts. It is important to research the warranty terms offered by the manufacturer before making a purchase.

The decision to buy the SPI SM-09279 standard piston for a Polaris 800 snowmobile model year 2011-2016 with a 85mm bore ultimately depends on individual preferences and priorities. If you are looking for improved performance and durability, and are willing to invest time and money in the installation process, then this aftermarket piston could be an excellent choice. However, if you value the peace of mind that comes with OEM parts and their associated warranties, then it may be worth considering those instead.

For those who are comfortable with the installation process and are seeking enhanced performance and durability from their snowmobile, the SPI SM-09279 standard piston is a worthwhile consideration. However, it is essential to ensure proper compatibility and double-check warranty terms before making a purchase.

Details:

T-Molly series with Teflon-Molybdenum coating. Pistons are for standard bore size 85.00mm. Pistons are made with anti-detonation grooves on intake and exhaust side, compared to side only OEM piston. Piston weight is compatible with original piston.

Manufactured by SPI. Made in Taiwan. T-Molly series pistons reduce friction, resist seizure improve durability. 2011 Pro RMK 800 163.

Includes 2 pistons, ring sets, wrist pins cir clips as pictured. Compatible with Polaris model's below: 2011 Pro RMK 800 155. All SPI pistons, rings, pins cir clips are manufactured to OEM specifications.

part #: sm09279 prices

• $145.69-$309.99

specifications enginesnowmobile:

• for models: 800
• for makes: Polaris
• for years: 2011-2016
• brand: Spi
• mpn: Sm-09279
• part type: Piston
• country of origin: Taiwan

offer enginesnowmobile:

• quantity: 4
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: October 23, 2025

shipping enginesnowmobile:

• service: Standard
• transit: 2-6 Days
• type: Fixed
• cost: $0.00
• class: Standard

general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

payments enginesnowmobile:

• credit card: Visa
• wallet: Apple-pay
• other

returns enginesnowmobile:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller enginesnowmobile:

• # reviews: 392678
• city: Suamico, Wisconsin
• rating: 99.6%

Spi SM-09279 Is Similar To:

• 1 09-694n Spi Piston Kit Arctic Cat El Tigre Standard 802024086769 (35.7% similar) After seeing that success forward was born. Many other companies just put up what they think the parts fit. More excess inventories were hunted down and sold. Shipping in continental us is free. We branched out into specific parts people need to keep their machines going. A deal was made and that ...(May 8th, 2018)
• 1 09-699n Spi Piston Kit Arctic Cat Cheetah El Tigre 802024086806 (32.1% similar) A deal was made and that inventory sold online over the next few months as sideline job. After seeing that success forward was born. Many other companies just put up what they think the parts fit. Shipping in continental us is free. We branched out into specific parts people need to keep their ...(June 11th, 2018)
• 1 09-701n Spi Piston Kit Polaris Tx Standard Bore 802024086981 (36.6% similar) Shipping in continental us is free. We branched out into specific parts people need to keep their machines going. Many other companies just put up what they think the parts fit. A deal was made and that inventory sold online over the next few months as sideline job. After seeing that success forward...(June 16th, 2018)
• 1 09-711191 Spi Complete Engine Gasket Set Kit Polaris Indy 642141104638 (35.6% similar) Shipping in continental us is free. We branched out into specific parts people need to keep their machines going. Many other companies just put up what they think the parts fit. A deal was made and that inventory sold online over the next few months as sideline job. More excess inventories were ...(July 5th, 2018)
• 1 09-711265 Spi Complete Engine Gasket Kit Polaris Indy Rmk 703624226923 (29.4% similar) After seeing that success forward was born. Shipping in continental us is free. More excess inventories were hunted down and sold. Many other companies just put up what they think the parts fit. We branched out into specific parts people need to keep their machines going. A deal was made and that ...(July 15th, 2018)
• 1 09-711307a Spi Complete Engine Gasket Kit Polaris Rmk Es 703624226855 (34.6% similar) Spi complete engine gasket kit polaris 700 Mk 155 es CFO set manufactured by contains all gaskets pictured to rebuild an engine, including oil seals with stainless steel springs for maximum performance and corrosion resistance. More excess inventories were hunted down and sold. Shipping in ...(July 13th, 2018)
• 1 09-712-06 Spi Over Bore Piston Kit Polaris Indy Classic 642141104522 (48.4% similar) We branched out into specific parts people need to keep their machines going. Shipping in continental us is free. 50MM snow season is upon us and here a chance to freshen up that snowmobile for the year. Many other companies just put up what they think the parts fit. A deal was made and that ...(May 25th, 2018)
• 1 09-716-02 Spi Over Bore Piston Kit Polaris Indy Xcr 802024087438 (43.3% similar) Shipping in continental us is free. 020 over bore size 65. After seeing that success forward was born. 020 over bore piston kit polaris Indy 600 Cr, XLT, triumph 65. Many other companies just put up what they think the parts fit. We branched out into specific parts people need to keep their machines...(July 1st, 2018)
• 1 09-716-03n Spi Over Bore Piston Kit Polaris Indy Xcr Xlt Triumph (44.6% similar) More excess inventories were hunted down and sold. 030 over bore piston kit polaris Indy 600 Cr, XLT, triumph 65. Many other companies just put up what they think the parts fit. 030 over bore size 65. After seeing that success forward was born. We branched out into specific parts people need to keep...(July 2nd, 2018)
• 1 09-726-02 Spi Over Bore Piston Kit Polaris Rmk Widetrack 703624230999 (44.4% similar) More excess inventories were hunted down and sold. 020 over bore piston kit polaris 500 Mk sidetrack classic touring 72. We branched out into specific parts people need to keep their machines going. Many other companies just put up what they think the parts fit. A deal was made and that inventory ...(June 28th, 2018)
• 1 09-780-04std Spi Piston Kit Mach Lt Standard Bore 802024088220 (34.8% similar) Please with any questions about a warranty on particular item. You can then purchase the correct item at any time. You can use the ask a question link near bottom of every listing. Post office. There is no combined shipping discount...(August 30th, 2018)