SPORTS PARTS INC 7369-S378579-79 Spi Hyperdryve Piston Kit BORE-85.00MM

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 7369-S378579-79 ), ( Part Type: Piston )

Review SPORTS PARTS INC Spi Hyperdryve Piston Kit std Bore-85.00mm Polaris fits RUSH STD XCR 800 2017–2018

Introducing the Sports 7369-S378579-79 SPI Hyperdryve Piston Kit for the 2017-2018 Polaris 800 XCR, a high-performance upgrade for your snowmobile engine. This piston kit is designed to deliver increased power, improved efficiency, and enhanced reliability compared to the original equipment.

The kit includes four hyperdryve pistons, specifically engineered for the Polaris 800 XCR engine with a standard bore of 85.00mm. Each piston is meticulously crafted using a forged aluminum design, ensuring superior strength and durability. The piston skirt is designed to minimize friction, allowing for smoother engine operation and reduced heat build-up.

The piston tops are engineered with a unique bowl shape that maximizes combustion efficiency, allowing for a more complete fuel burn and increased power output. Additionally, the piston tops feature a siamese design, which eliminates the need for a traditional piston ring pack and reduces the weight of the piston assembly.

The SPI Hyperdryve Piston Kit also includes new rings, including a compression ring, oil control ring, and skirt ring, all specifically designed for use with the hyperdryve pistons. The rings are made from high-quality materials that ensure a tight seal and optimal engine performance.

This piston kit is a direct replacement for the original equipment, making installation straightforward and hassle-free. It is also compatible with most aftermarket cylinder heads, allowing for additional performance upgrades.

In summary, the Sports 7369-S378579-79 SPI Hyperdryve Piston Kit is an excellent upgrade for anyone looking to maximize the performance of their 2017-2018 Polaris 800 XCR snowmobile engine. With its forged aluminum pistons, efficient bowl design, and high-quality rings, this kit is sure to deliver increased power, improved efficiency, and enhanced reliability.

Pros and Cons of buying a SPACECOAST 7369-S378579-79 HyperDryve Piston Kit for 2017-2018 Polaris 800 XCR

a. Enhanced Performance: This piston kit is designed to provide improved engine performance and power output. The HyperDryve pistons are known for their strength and durability, allowing for increased horsepower and torque.

b. High-Quality Materials: The pistons are made from forged aluminum, ensuring a strong and reliable component in the engine. Additionally, the kit includes high-performance rings for optimal sealing.

c. Upgrade for Off-Road Applications: The SPACECOAST piston kit is an excellent choice for those who use their Polaris 800 XCR for off-road racing or heavy trail riding. The pistons' enhanced strength and durability make them suitable for the demanding conditions of off-road riding.

a. Cost: Compared to the stock pistons, the SPACECOAST HyperDryve piston kit is a more expensive option. Considering the performance benefits, this might be a worthwhile investment for performance enthusiasts, but it may not be suitable for those with a limited budget.

b. Installation Complexity: Installing the piston kit requires a certain level of mechanical expertise and the proper tools. If you're not confident in your ability to perform the installation, it may be worth considering having it done by a professional.

The SPACECOAST 7369-S378579-79 HyperDryve Piston Kit for the 2017-2018 Polaris 800 XCR offers several advantages, such as increased power, improved durability, and high-quality materials. However, it also comes with a higher price tag and a more complex installation process. Ultimately, the decision to purchase this piston kit depends on your priorities and budget. If you're looking for enhanced performance and are willing to invest in a high-quality aftermarket part, this kit could be an excellent choice for your Polaris 800 XCR.

If you are an off-road enthusiast, a racer, or someone who demands the highest level of performance from your Polaris 800 XCR, the SPACECOAST 7369-S378579-79 HyperDryve Piston Kit is a worthwhile investment. The benefits outweigh the cons for those who want to maximize the capabilities of their snowmobile. However, if you're on a tight budget or prefer a more stock setup, it might be best to stick with the original pistons.

Details:

This is helpful if you are buying multiple items. Parts without fitment are to be assumed universal and may require vehicle modification.: Brand: Sports Parts Inc, model Number: 7369-S378579-79. 2017 - 2017 Polaris800 RMK Assault 155 3in.

SPI Hyperdryve Piston Kit-Std Bore-85.00mm for 2017 - 2018 Polaris 800 Rush XCR: Bore: 85.00mm. I need to exchange an item. Compatibility: Years: Make: model: Application: Notes: 2017 - 2018 Polaris800 PRO-RMK 163, Switchback PRO-S, 2018 174, XCR, 2017 Polaris800 155 LE, 163 3in.

part #: 7369s37857979 price

• $130.73

specifications enginesnowmobile:

• for models: Std, Xcr, 800, Rush
• for makes: Polaris
• for years: 2017-2018
• brand: Sports Parts Inc
• mpn: 7369-s378579-79
• part type: Piston

general enginesnowmobile:

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

seller enginesnowmobile:

• rating: 99.5%
• # reviews: 63520
• city: Indiana, US

returns enginesnowmobile:

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

shipping enginesnowmobile:

• transit: 3-5 Days
• type: Fixed
• service: Standard
• class: Standard
• cost: $0.00

payments enginesnowmobile:

• credit card: Diners-club
• wallet: Google-pay
• other

offer enginesnowmobile:

• availability: In Stock
• started: May 5, 2025
• sold: 0
• quantity: 9
• options: Ship-to-home

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