SPORTS PARTS INC 4390-S372621-70 Spi Repair Pro Kit Master Cylinder

( Brand: Sports Parts Inc ), ( Manufacturer Part Number: 4390-S372621-70 )

Review SPORTS PARTS INC Spi Master Cylinder Repair Kit Polaris Pro s Snowmobile fits RUSH 600 2015–2018

Polaris 4390-S372621-70 SPI Master Cylinder Repair Kit for 2015-2018 Polaris 600 Pro-S

The Polaris 4390-S372621-70 SPI Master Cylinder Repair Kit is an essential component for maintaining the braking system of your 2015-2018 Polaris 600 Pro-S. Designed specifically for this model, this repair kit ensures a perfect fit and reliable performance.

The master cylinder is a critical part of your snowmobile's braking system, and its failure can lead to dangerous situations. This repair kit includes all the necessary components to replace a worn-out master cylinder, allowing you to restore the braking performance of your Polaris 600 Pro-S.

The kit consists of a new master cylinder, a reservoir, a bleed screw, and the required hardware. The master cylinder is designed to provide consistent and reliable braking force, ensuring that your snowmobile stops efficiently and safely. The reservoir holds the necessary brake fluid, maintaining the proper hydraulic pressure in the system. The bleed screw allows for easy bleeding of the braking system, ensuring that no air bubbles remain in the lines.

Installing the repair kit is a straightforward process. Simply remove the old master cylinder, install the new one, and bleed the system using the included bleed screw. The detailed instructions provided with the kit will guide you through each step of the process, ensuring a successful installation.

Made from high-quality materials, this Polaris master cylinder repair kit is built to withstand the rigors of snowmobiling. The kit is specifically engineered for the Polaris 600 Pro-S, ensuring a precise fit and reliable performance. By using this repair kit, you can trust that your snowmobile's braking system will function safely and effectively, giving you peace of mind on the trails.

Pros and Cons of Buying a 2015-2018 Polaris 600 Pro-S SPI Master Cylinder Repair Kit (Model: 4390-S372621-70)

a. OEM Compatibility: This repair kit is specifically designed for the Polaris 600 Pro-S models from 2015 to 2018, ensuring a perfect fit and optimal performance.

b. Cost-Effective: By choosing a repair kit over an entire new master cylinder, you can save a significant amount of money.

c. Easy Installation: The repair kit comes with all necessary components, such as the seals and nuts, making the installation process relatively straightforward.

a. Limited Lifespan: While the repair kit addresses the current issue, it might not last as long as a brand-new master cylinder.

b. Potential Skill Required: Depending on your mechanical aptitude, installing the repair kit might require some technical know-how.

c. Availability: Depending on where you live, you might have trouble finding this specific repair kit in stock at local stores, making online ordering necessary.

The decision to buy the 4390-S372621-70 SPI Master Cylinder Repair Kit for your 2015-2018 Polaris 600 Pro-S depends on various factors. If you value cost-effectiveness, ease of installation, and OEM compatibility, then this repair kit is an excellent choice. However, if you prefer a long-lasting solution or lack the necessary mechanical skills, you might consider purchasing a new master cylinder instead.

For those who prioritize cost savings and have the necessary skills to install the repair kit, it is recommended to go ahead and purchase the 4390-S372621-70 SPI Master Cylinder Repair Kit for their Polaris 600 Pro-S. For others, it might be worth considering a new master cylinder for a more durable, hassle-free solution.

Details:

I need to exchange an item. Parts without fitment are to be assumed universal and may require vehicle modification. This is helpful if you are buying multiple items. Compatibility: Years: Make: model: Application: Notes: 2017 - 2017 Polaris600 RMK 144, 2018 Polaris600 Rush XCR, 2015 Switchback PRO-S, SP Adventure, 2016 Polaris800 PRO-S LE, 2018 Polaris800 Assault Voyageur PRO-X, 2017 Polaris800 2018 SKS 146, 155.

Brand: Sports Parts Inc, model Number: 4390-S372621-70. SPI Master Cylinder Repair Kit for 2015 - 2018 Polaris 600 Rush PRO-S Snowmobile.

part #: 4390s37262170 prices

• $16.17-$240.31

specifications brakessnowmobile:

• for models: 600, Rush
• for makes: Polaris
• for years: 2015-2018
• brand: Sports Parts Inc
• mpn: 4390-s372621-70

offer brakessnowmobile:

• quantity: 2
• availability: In Stock
• started: January 3, 2026
• sold: 0
• options: Ship-to-home

general brakessnowmobile:

• Parts Accessories > Snowmobile Parts > Brakes
• condition: New

returns brakessnowmobile:

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

shipping brakessnowmobile:

• service: Standard
• class: Standard
• cost: $0.00
• transit: 4-9 Days
• type: Fixed

payments brakessnowmobile:

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

seller brakessnowmobile:

• rating: 99.8%
• # reviews: 74014
• city: Indiana, US

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