SPI SM-09147-2 Piston Ski Doo .020 670 78.5MM

( Brand: Spi ), ( Manufacturer Part Number: SM-09147-2 ), ( Part Type: Piston )

Review SPI .020 Over Bore Piston Kits Ski doo 670 And 78.5mm fits SUMMIT MXZ HO

The SPI SM-09147-2 020 piston is a high-performance replacement piston specifically designed for the Ski-Doo MXZ 670 HO Summit with a bore size of 78.5mm. This piston is engineered to deliver superior strength and durability, making it an ideal choice for riders seeking optimal engine performance and reliability.

Manufactured using advanced materials and state-of-the-art manufacturing processes, this piston ensures a perfect fit and precise function in your Ski-Doo engine. The piston crown is designed to provide efficient combustion and improved power output, while the skirt is engineered for enhanced ring sealing and reduced friction.

This piston features a forged design, which provides greater strength and rigidity compared to cast pistons. The forged construction also ensures a more uniform shape and better dimensional accuracy, resulting in improved engine performance and longevity.

The piston ring grooves are precision machined to ensure proper ring fit and sealing, while the skirt design helps to reduce oil consumption and minimize blowby. The piston also includes a wrist pin bore that is precisely machined to ensure a snug fit with the connecting rod, reducing the risk of piston slap and ensuring smooth engine operation.

The SPI SM-09147-2 020 piston is backed by a comprehensive warranty, giving you peace of mind and confidence in your purchase. This piston is a direct replacement for the factory original, making installation easy and straightforward.

In summary, the SPI SM-09147-2 020 piston is a high-quality, high-performance replacement piston designed specifically for the Ski-Doo MXZ 670 HO Summit with a 78.5mm bore size. It is engineered to provide superior strength, durability, and engine performance, making it an excellent choice for riders seeking to enhance the capabilities of their snowmobile.

Pros and Cons of Buying a SPI SM-09147-2 020 Piston for Ski-Doo MXZ 670 HO Summit (78.5mm)

The SPI SM-09147-2 020 piston is a replacement option for those looking to upgrade or repair their Ski-Doo MXZ 670 HO Summit snowmobile. In this article, we will discuss the potential advantages and disadvantages of purchasing this piston.

1. Improved Performance: The SPI SM-09147-2 020 piston is designed to provide better compression and power output compared to the original piston, resulting in improved engine performance.

2. Enhanced Durability: This piston is made from high-quality materials, ensuring it can withstand the harsh conditions of snowmobiling and offer longer service life.

3. Increased Efficiency: The SPI SM-09147-2 020 piston is designed to provide better fuel economy and reduce exhaust emissions, making it an eco-friendly option.

4. Easy Installation: This piston is said to be easy to install, allowing users to save time and money by performing the replacement themselves.

1. Cost: The SPI SM-09147-2 020 piston may be more expensive than the stock piston, which could be a deterrent for some buyers.

2. Potential Compatibility Issues: Ensure that the piston is fully compatible with your specific Ski-Doo MXZ 670 HO Summit model before purchasing, as there could be variations between different models or years.

3. Risk of Damage: Installing a new piston involves disassembling the engine, which could potentially result in further damage if not done correctly. It is recommended to have the work done by a professional if unsure.

The SPI SM-09147-2 020 piston offers several advantages, including improved performance, enhanced durability, increased efficiency, and easy installation. However, there are also potential drawbacks, such as cost, compatibility issues, and the risk of damage during installation. Ultimately, the decision to purchase this piston depends on your personal needs, budget, and technical expertise. If you are looking for better engine performance and durability, and are willing to invest in a high-quality piston, this could be a worthwhile investment. If you are unsure about the installation process or have limited budget, it may be best to consider other options.

If you are confident in your technical abilities and have the budget for a high-quality piston, the SPI SM-09147-2 020 piston could be an excellent choice for your Ski-Doo MXZ 670 HO Summit. Ensure that you verify its compatibility with your specific model and year, and consider having it installed by a professional for peace of mind. If you are unsure or have budget constraints, it may be worth considering other piston options or consulting with a professional to determine the best solution for your needs.

Details:

Includes 2 pistons, ring sets, wrist pins cir clips as pictured. T-Molly series with Teflon-Molybdenum coating. 1999 MXZ 670 HO. Manufactured by SPI.

Made in Taiwan. Piston weight is compatible with original piston. All SPI pistons, rings, pins cir clips are manufactured to OEM specifications. T-Molly series pistons reduce friction, resist seizure improve durability.

Pistons are for .020 over bore size 78.50mm.

part #: sm091472 prices

• $154.95-$219.75

specifications enginesnowmobile:

• for models: Mxz, Ho, Summit
• for makes: Ski-doo
• brand: Spi
• mpn: Sm-09147-2
• part type: Piston

offer enginesnowmobile:

• availability: In Stock
• sold: 0
• started: February 17, 2025
• options: Ship-to-home
• quantity: 2

returns enginesnowmobile:

• paid by: Buyer
• time: 60 Days
• policy: Returns Accepted

general enginesnowmobile:

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

shipping enginesnowmobile:

• cost: $0.00
• transit: 3-7 Days
• class: Standard
• service: Standard
• type: Fixed

seller enginesnowmobile:

• # reviews: 385016
• city: Suamico, Wisconsin
• rating: 99.4%

payments enginesnowmobile:

• wallet: Google-pay
• credit card: Discover
• other

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