SPI 09-730E Standard Piston Kit 85MM

( Brand: Spi ), ( Manufacturer Part Number: 09-730E ), ( Part Type: Piston )

Review SPI Standard Bore Piston Kit Polaris 85mm fits EDGE XC 800 2003–2004

Introducing the SPI 09-730E Standard Piston Kit, specifically designed for the Polaris XC 800 Edge models from 2003 to 2004 with a 85mm bore size. This kit is an essential upgrade for your snowmobile engine, ensuring optimal performance and reliability.

Each piston in this kit is meticulously crafted using high-quality materials. The piston crown is engineered with a durable, heat-resistant alloy, designed to withstand the extreme temperatures and pressures encountered during snowmobiling. The piston skirt, on the other hand, features a robust, chrome-plated steel to minimize friction and wear against the cylinder wall.

The piston rings, included in this kit, are designed to provide an ideal seal between the piston and cylinder wall. They are made of a heat-resistant, compressible material, ensuring maximum sealing efficiency and longevity. The piston rings also feature a split design, simplifying the installation process and reducing the likelihood of damage during installation.

This kit also includes a set of wrist pins, which securely fasten the piston to the connecting rod. The wrist pins are precision machined from high-strength steel, ensuring a secure connection and minimizing the risk of piston damage.

By upgrading your snowmobile engine with the SPI 09-730E Standard Piston Kit, you can expect improved engine performance, enhanced power delivery, and increased reliability. This kit is an excellent investment for any serious snowmobiling enthusiast, ensuring your Polaris XC 800 Edge remains in top condition for years to come.

In summary, the SPI 09-730E Standard Piston Kit is a high-quality, comprehensive solution for upgrading the engine of your Polaris XC 800 Edge snowmobile for the model years 2003 to 2004. Each component, from the piston crown to the wrist pins, is meticulously designed and crafted to provide optimal performance and reliability. Invest in this kit today, and enjoy the thrill of a revitalized snowmobile engine.

The SPI 09-730E Standard Piston Kit for Polaris XC 800 Edge (2003-2004, 85mm) is a popular aftermarket upgrade for those seeking improved performance and durability from their snowmobiles. Here are some pros and cons to consider before making a purchase:

1. Enhanced Performance: The piston kit is designed to provide better compression and power output, resulting in increased acceleration and top speed.

2. Improved Reliability: The kit includes new pistons, rings, and other components, which can help reduce engine wear and minimize the risk of engine failures.

3. Customizable: The kit is available in various sizes and configurations to suit different riding styles and conditions.

4. Affordable: Compared to other performance upgrades, the piston kit is a relatively cost-effective way to enhance the capabilities of your snowmobile.

1. Installation Complexity: Installing the piston kit requires advanced mechanical skills and specialized tools, making it a challenging project for the average DIY enthusiast.

2. Risk of Engine Damage: Improper installation or use of incorrect components can lead to engine damage, which could be expensive to repair.

3. Reduced Fuel Efficiency: The increased performance of the piston kit may result in reduced fuel efficiency, leading to higher operating costs.

4. Potential Increase in Noise: Some users have reported an increase in engine noise after installing the piston kit.

The SPI 09-730E Standard Piston Kit for Polaris XC 800 Edge (2003-2004, 85mm) offers significant performance benefits and improved reliability for snowmobile enthusiasts. However, it requires advanced mechanical skills for installation and carries the risk of engine damage if not installed correctly. Additionally, it may result in reduced fuel efficiency and increased noise. Ultimately, the decision to purchase this kit depends on your mechanical abilities, riding style, and budget. If you're confident in your mechanical skills and willing to accept the potential trade-offs, the piston kit could be an excellent investment for enhancing the performance of your snowmobile.

Details:

2004 XC 800 Edge. Compatible with Polaris model's below: 2003 XC 800 Edge. T-Molly series pistons feature silicone aluminum alloy construction with Teflon and molybdenum coating a hard anodized crown. Works in both cast and chrome cylinders.

Made in Taiwan. Included is one piston kit piston, rings, cir clips and wrist pin. Manufactured by SPI. Piston is for standard bore size 85.00mm.

Manufactured to OEM Specifications.

part #: 09730e prices

• $35.15-$119.67

specifications enginesnowmobile:

• for models: Xc, 800, Edge
• for makes: Polaris
• for years: 2003-2004
• brand: Spi
• mpn: 09-730e
• part type: Piston

seller enginesnowmobile:

• rating: 99.3%
• city: Suamico, Wisconsin
• # reviews: 388218

returns enginesnowmobile:

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

offer enginesnowmobile:

• options: Ship-to-home
• availability: In Stock
• started: August 26, 2025
• sold: 0
• quantity: 4

general enginesnowmobile:

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

shipping enginesnowmobile:

• class: Standard
• cost: $0.00
• transit: 2-7 Days
• type: Fixed
• service: Standard

payments enginesnowmobile:

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

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