SPORTS PARTS INC 9391-S382623-31 Spi Hyperdryve Piston Kit BORE-85.00MM Sp 155

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 9391-S382623-31 ), ( Part Type: Piston )

Review SPORTS PARTS INC Spi Hyperdryve Piston Kit std Bore-85.00mm Polaris Sp 155 fits TITAN STD 800 2018

Introducing the Sports 9391-S382623-31 SPI HyperDryve Piston Kit, specifically designed for the 2018 Polaris 800 Titan SP 155. This piston kit is an essential upgrade for snowmobilers seeking enhanced performance and reliability from their machine.

The HyperDryve piston design is a significant improvement over traditional piston kits. The piston's unique shape and contour promote efficient combustion and cooling, allowing for increased power output and reduced engine temperatures. With a standard bore of 85.00mm, this piston kit is an excellent fit for the Polaris 800 Titan SP 155 engine.

Each piston is meticulously crafted using high-quality materials. The piston crown is made of forged aluminum, providing superior strength and durability. The skirt is made of a heat-treated steel, offering excellent resistance to wear and tear. The piston rings are made of high-tensile material, ensuring a tight seal and optimal compression.

The piston kit also includes new piston pins, made of high-strength steel, and wrist pin bushings for added durability and reduced friction. Additionally, the kit includes new piston pin retainers, ensuring a secure fit and preventing any potential damage to the engine.

Installing the HyperDryve piston kit on your Polaris 800 Titan SP 155 is a straightforward process. The kit comes with detailed instructions and all necessary hardware for a hassle-free installation. With this upgrade, you can expect improved engine performance, increased horsepower, and enhanced reliability, making your snowmobiling experience even more thrilling.

In summary, the Sports 9391-S382623-31 SPI HyperDryve Piston Kit is a high-performance upgrade for your 2018 Polaris 800 Titan SP 155. With its advanced design, top-quality materials, and easy installation, this piston kit is an excellent investment for any serious snowmobiler seeking to maximize their machine's potential.

The 9391-S382623-31 SPI Hyperdryve piston kit for the 2018 Polaris 800 Titan SP 155 is a performance upgrade for your snowmobile. This piston kit is designed to provide better power, efficiency, and durability. Here are some pros and cons to help you make an informed decision about purchasing this product:

1. Increased Power: The SPI Hyperdryve piston kit is designed to provide more power to your snowmobile engine. This can result in better acceleration and improved top speed.

2. Improved Efficiency: The new pistons are designed to be more efficient than the stock pistons. This means that your snowmobile will use fuel more efficiently, resulting in better mileage and fewer fuel stops.

3. Enhanced Durability: The piston kit is made from high-quality materials that are designed to last longer than the stock pistons. This can save you money in the long run by reducing the need for frequent replacements.

4. Better Engine Response: The new pistons can help your engine respond more quickly to throttle inputs, making your snowmobile more responsive and agile.

1. Higher Cost: The piston kit is more expensive than the stock pistons that come with your snowmobile. This may be a deterrent for some buyers.

2. Installation Complexity: Installing the new pistons requires more advanced knowledge and tools than a typical maintenance task. It may be necessary to hire a professional to install the kit, which can add to the cost.

3. Reduced Warranty Coverage: Installing aftermarket parts like this piston kit can reduce the coverage of your snowmobile's factory warranty.

The SPI Hyperdryve piston kit for the 2018 Polaris 800 Titan SP 155 is a high-performance upgrade that can provide increased power, improved efficiency, and enhanced durability. However, it also comes with a higher cost, installation complexity, and reduced warranty coverage. Ultimately, the decision to purchase this kit depends on your budget, technical abilities, and desired performance level.

If you are an experienced snowmobiler who values performance and is willing to invest in high-quality aftermarket parts, then the SPI Hyperdryve piston kit is a worthwhile investment. However, if you are a casual rider who prioritizes ease of use and affordability, then it may be best to stick with the stock pistons. It is important to carefully consider the pros and cons before making a purchase decision.

Details:

I need to exchange an item. This is helpful if you are buying multiple items. 2017 - 2017 Polaris800 RMK Assault 155 3in. Compatibility: Years: Make: model: Application: Notes: 2017 - 2018 Polaris800 PRO-RMK 163, Switchback PRO-S, 2018 174, XCR, 2017 Polaris800 155 LE, 163 3in.

Parts without fitment are to be assumed universal and may require vehicle modification. SPI Hyperdryve Piston Kit-Std Bore-85.00mm for 2018 Polaris 800 Titan SP 155: Bore: 85.00mm.: Brand: Sports Parts Inc, model Number: 9391-S382623-31.

part #: 9391s38262331 price

• $130.73

specifications enginesnowmobile:

• for models: Std, 800, Titan
• for makes: Polaris
• for years: 2018
• brand: Sports Parts Inc
• mpn: 9391-s382623-31
• part type: Piston

offer enginesnowmobile:

• quantity: 9
• sold: 0
• started: May 6, 2025
• availability: In Stock
• options: Ship-to-home

payments enginesnowmobile:

• credit card: Visa
• wallet: Paypal
• other

returns enginesnowmobile:

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

general enginesnowmobile:

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

seller enginesnowmobile:

• city: Indiana, US
• rating: 99.5%
• # reviews: 63523

shipping enginesnowmobile:

• class: Standard
• service: Standard
• cost: $0.00
• type: Fixed
• transit: 2-4 Days

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