SPI 09-718 Standard Piston Ultra 66.6MM

( Brand: Spi ), ( Manufacturer Part Number: 09-718 ), ( Part Type: Piston ), ( Country Of Origin: Taiwan )

Review SPI Standard Bore Piston Kits Polaris Ultra 66.6mm fits INDY 680 1996–1998

Introducing the SPI 09-718 Standard Piston, an essential component for Polaris Indy Ultra 680 models produced between 1996 and 1998. This piston, with a bore size of 66.6mm, is engineered to meet the SPI 09-718 standard, ensuring optimal engine performance and reliability.

Crafted from high-quality materials, this piston boasts a forged ring land design for added strength and durability. Its skirt is designed with a precision honed finish, allowing for a perfect fit in the cylinder bore. The piston ring grooves are precisely machined to accommodate the appropriate ring sizes, promoting efficient combustion and sealing of the combustion chamber.

The top ring groove on this piston features a chamfered edge, which facilitates proper ring end gap setup and ensures even ring compression. The piston pin bore is accurately machined to ensure a snug fit with the piston pin, reducing the risk of loosening or damage.

The SPI 09-718 Standard Piston is designed to provide reliable power delivery, enhanced fuel efficiency, and reduced engine wear. It undergoes rigorous testing to ensure it meets the stringent quality standards set by SPI (Ski-Doo Performance Parts).

Installing this piston is a straightforward process, making it an excellent choice for DIY enthusiasts or professional mechanics. With its precise fit and exceptional performance, this piston is the ideal upgrade for your Polaris Indy Ultra 680, helping you get the most out of your snowmobile and ensuring many hours of enjoyable riding.

Buying a SPI (Ski-Doo Performance Industries) 09-718 standard piston for a Polaris Indy Ultra 680, model years 1996-1998, with a 66.6mm bore, comes with several pros and cons to consider before making a decision.

1. Enhanced Performance: The SPI piston is designed to provide improved engine performance, including increased horsepower and torque.

2. Durability: This piston is made from high-quality materials and is engineered to withstand the rigors of off-road riding.

3. OEM Compatibility: The SPI piston is specifically designed to fit and function properly in the Polaris Indy Ultra 680 engine.

4. Warranty: SPI offers a warranty on their pistons, providing peace of mind and protection against manufacturing defects.

1. Cost: The SPI piston may be more expensive than OEM (Original Equipment Manufacturer) or aftermarket alternatives.

2. Installation: Installing a new piston can be a complex and time-consuming process, requiring specialized tools and skills.

3. Potential for Engine Damage: If not installed correctly, a new piston can cause engine damage.

The decision to buy a SPI 09-718 standard piston for a Polaris Indy Ultra 680, model years 1996-1998, with a 66.6mm bore, depends on individual priorities and circumstances. If performance and durability are top priorities, the SPI piston may be a worthwhile investment. However, if cost is a concern, it may be worth considering OEM or aftermarket alternatives. Proper installation is essential to avoid potential engine damage.

1. Ensure that you have the necessary tools and skills to install the piston properly.

2. Consider purchasing the piston from a reputable dealer or supplier to ensure quality and compatibility.

3. Follow the manufacturer's instructions carefully during installation to avoid potential damage to the engine.

4. Consider purchasing a warranty to protect against manufacturing defects.

Details:

Compatible with Polaris model's below: 1996 Indy Ultra 680 RMK. Piston weight is compatible with original piston. All SPI pistons, rings, pins cir clips are manufactured to OEM specifications. Manufactured by SPI.

1996 Indy Ultra 680 SKS. T-Molly series with Teflon-Molybdenum coating. Pistons are for standard bore size 66.60mm. Includes 3 pistons, ring sets, wrist pins cir clips as pictured.

Made in Taiwan. T-Molly series pistons reduce friction, resist seizure improve durability.

part #: 09718 prices

• $21.55-$67.95

specifications enginesnowmobile:

• for models: 680, Indy
• for makes: Polaris
• for years: 1996-1998
• brand: Spi
• mpn: 09-718
• part type: Piston
• country of origin: Taiwan

general enginesnowmobile:

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

offer enginesnowmobile:

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

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• time: 30 Days
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seller enginesnowmobile:

• city: Suamico, Wisconsin
• rating: 99.7%
• # reviews: 398225

shipping enginesnowmobile:

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• service: Standard
• cost: $0.00
• class: Standard
• type: Fixed

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• wallet: Paypal
• credit card: Discover

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