SPI 09-780-02 Piston Ski Doo 642141104911 .020 70MM

( Brand: Spi ), ( Manufacturer Part Number: 09-780-02 ), ( Part Type: Piston ), ( UPC: 642141104911 )

Review SPI Piston Kits Ski doo 780 .020 Over Bore Size 70mm fits FORMULA MACH 1993–1996

Introducing the SPI 09-780-02 piston, specifically designed for the Ski-Doo 780 Formula Mach 020 model from 1993 to 1996. This high-performance piston is engineered to deliver superior power, efficiency, and reliability to your snowmobile engine.

The piston is constructed from a forged aluminum alloy material, ensuring maximum strength and durability to withstand the demands of heavy usage. The piston crown is designed with a 70mm bore size to match the specifications of your Ski-Doo 780 Formula Mach 020 engine. The piston skirt is optimized for a snug fit within the cylinder bore, minimizing friction and ensuring efficient power transfer.

The piston rings included with this kit are made from high-quality, heat-resistant materials to provide excellent sealing and prevent combustion gases from escaping. The piston rings also feature a precise fit to minimize friction and ensure optimal engine performance.

The piston pin is made from chrome-molybdenum steel, providing excellent strength and wear resistance. The piston pin is also precision-machined to ensure a perfect fit within the piston and crankshaft, ensuring smooth and efficient engine operation.

The piston design features a balanced shape to minimize vibration and reduce engine noise. This results in a quieter, smoother running engine, making your riding experience more enjoyable.

This piston kit also includes a piston pin retainer, piston pin bushing, and piston pin bushings, ensuring a complete and easy installation process. The piston kit is also compatible with standard ring gaps, making it a straightforward replacement for your worn-out or damaged piston.

Overall, the SPI 09-780-02 piston is a high-quality, performance-enhancing upgrade for your Ski-Doo 780 Formula Mach 020 engine. With its superior strength, efficient power transfer, and quiet operation, this piston kit is the perfect solution for riders seeking to maximize the potential of their snowmobile.

Buying a SPI (Ski-Doo Performance Industries) 09-780-02 piston for a 1993-1996 Ski-Doo 780 Formula Mach 020 with a 70mm bore size can have both advantages and disadvantages. Here's a list of potential pros and cons:

1. Improved Performance: A new piston can lead to increased power and better engine efficiency, resulting in improved performance.

2. Reliability: A high-quality aftermarket piston like the one from SPI can provide better reliability compared to the original OEM piston.

3. Durability: Aftermarket pistons are often made of stronger materials, providing improved durability and longevity.

4. Cost-Effective: Replacing a piston with a high-performance aftermarket option can be more cost-effective than purchasing a new snowmobile or rebuilding the entire engine.

1. Installation Complexity: Installing a new piston can be a complex and time-consuming process, requiring specialized tools and knowledge.

2. Risk of Damage: There is a risk of damaging other engine components during the installation process.

3. Cost: Aftermarket pistons can be more expensive than OEM pistons.

4. Potential Compatibility Issues: It's essential to ensure that the aftermarket piston is compatible with the specific engine model and year.

When deciding whether to buy an SPI 09-780-02 piston for a 1993-1996 Ski-Doo 780 Formula Mach 020 with a 70mm bore size, it's important to weigh the potential benefits against the drawbacks. If improved performance and durability are priorities, then an aftermarket piston may be the best choice. However, if the installation process and potential costs are concerns, then it may be worth considering an OEM piston or seeking professional advice before making a decision.

If you decide to go with an aftermarket piston, be sure to purchase from a reputable supplier and consult with a knowledgeable mechanic or snowmobile specialist to ensure a successful installation process. Additionally, consider the long-term benefits in terms of improved performance and potential cost savings.

Details:

Manufactured by SPI. Includes 3 pistons, ring sets, wrist pins, cir clips as pictured. T-Molly series pistons reduce friction, resist seizure, improve durability. 1993 Formula Mach Z 780.

T-Molly series with Teflon-Molybdenum coating. 1994 Formula Mach Z 780. Pistons are for .020 bore size 70.00mm. Made in Taiwan.

All SPI pistons, rings, pins, cir clips are manufactured to OEM specifications. Piston weight is compatible with original piston.

part #: 0978002 prices

• $63.71-$67.24

specifications enginesnowmobile:

• for models: Formula, Mach
• for makes: Ski-doo
• for years: 1993-1996
• brand: Spi
• mpn: 09-780-02
• part type: Piston
• upc: 642141104911

seller enginesnowmobile:

• # reviews: 386544
• rating: 99.5%
• city: Suamico, Wisconsin

shipping enginesnowmobile:

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

offer enginesnowmobile:

• started: April 22, 2025
• options: Ship-to-home
• quantity: 4
• availability: In Stock
• sold: 0

general enginesnowmobile:

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

returns enginesnowmobile:

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

payments enginesnowmobile:

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

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