Fox Racing Fox Quick Switch (QS) Coil Shocks for Polaris Switchback Snowmobile - Part Number 853-04-005

Fox Quick Switch (QS) coil shocks for trail/crossover applications provide the same performance advantage Fox is known for in the backcountry now. Ride harder with less fatigue without a compromise of durability. Experience a new sense of control on the snow due to velocity and position-sensitive damping technology. Quickly adjust the compression damping with Fox's QS3 to suit snow conditions. Three positions keep the gloves on and the adjustment simple. Focus on riding instead of counting clicks. Fox's position-sensitive damping technology, Rifle Bore, is now applied to the Factory Race Series rear track shock. Spiral grooves inside the shock allow the oil to flow around the main piston, reducing the damping force in the ride zone for a plush feel. The grooves terminate through the final 30% of the travel, forcing oil to flow through the main piston. The final result is a significant increase in bottom-out resistance to cushion hard hits.

Enhance your Polaris Switchback snowmobile's performance with the Fox Quick Switch (QS) coil shocks, designed specifically for trail and crossover applications. These shocks deliver the renowned Fox performance in the backcountry, allowing you to ride harder with less fatigue without sacrificing durability. The advanced velocity and position-sensitive damping technology provides exceptional control on snow, adapting seamlessly to changing conditions. The QS3 three-position compression adjuster enables quick, glove-friendly modifications, so you can focus on riding rather than fine-tuning. The Fox Factory Race Series rear track shock incorporates Rifle Bore technology, utilizing spiral grooves inside the shock to optimize oil flow and reduce damping force during ride. This results in a plush feel while significantly increasing bottom-out resistance to absorb hard impacts effectively. Built with a lightweight yet robust design, these shocks feature high flow velocity-sensitive damping, an internal floating piston (IFP), and fully rebuildable, re-tunable components for long-term performance. The shock's one-piece aluminum mounting hardware ensures durability and precision installation, making it suitable for a range of Polaris models including the 600, 800, and 850 Switchback series from 2017 to 2020. Whether you're tackling challenging terrain or pushing your snowmobile to its limits, these Fox shocks provide the control, comfort, and reliability you need for an optimal snowmobiling experience.

Features:

• Optimized lightweight spring and shock design for performance and durability

• Fox IQS3 technology with three-position compression adjustment for quick tuning

• One-piece aluminum mounting hardware for secure installation

• High flow velocity-sensitive damping for responsive performance

• Rifle Bore technology (applies to rear track shock only) for improved oil flow and damping control

• Fully rebuildable and re-tunable for long-term maintenance and customization

• Internal floating piston (IFP) enhances shock consistency and performance

• Adjustable spring preload to fine-tune ride characteristics

Product Type: Suspension
Segment: Snow
Division: Suspension & Swingarms
Class: Suspension & Components
Sub Class: Shocks & Components

FITMENT:
2017 Polaris 600 Switchback Assault 144"
2017 Polaris 600 Switchback SP 144"
2017 Polaris 800 Switchback Assault 144"
2018 Polaris 600 Switchback Assault 144"
2018 Polaris 600 Switchback SP 144"
2018 Polaris 800 Switchback Assault 144"
2019 Polaris 600 Switchback Assault 144"
2019 Polaris 600 Switchback SP 144"
2019 Polaris 800 Switchback Assault 144"
2019 Polaris 850 Switchback Assault 144"
2020 Polaris 600 Switchback Assault 144"
2020 Polaris 800 Switchback Assault 144"
2020 Polaris 850 Switchback Assault 144"
2021 Polaris 600 Switchback Assault 144"
2021 Polaris 650 Switchback Assault 146"
2021 Polaris 850 Switchback Assault 144"
2021 Polaris 850 Switchback Assault 146"
2022 Polaris 650 Switchback Assault 146"
2022 Polaris 650 Switchback XC 146"
2022 Polaris 850 Switchback Assault 146"
2022 Polaris 850 Switchback XC 146"
2023 Polaris 600 Switchback SP 144"
2023 Polaris 650 Switchback Assault 146"
2023 Polaris 650 Switchback XC 146"
2023 Polaris 850 Switchback Assault 146"
2023 Polaris 850 Switchback XC 146"
2024 Polaris 600 Switchback SP 144"
2024 Polaris 650 Switchback Assault 146"
2024 Polaris 650 Switchback XC 146"
2024 Polaris 850 Switchback Assault 146"
2024 Polaris 850 Switchback XC 146"
2025 Polaris 600 Switchback SP 146"
2025 Polaris 650 Switchback Assault 146"
2025 Polaris 650 Switchback XC 146"
2025 Polaris 850 Switchback Assault 146"
2025 Polaris 850 Switchback XC 146"