LEN Performance Rear Track Shock for Polaris Snowmobiles – Part LS4-50000R

Upgrade your Polaris snowmobile's suspension with the LEN Performance LS4-50000R rear track shock, designed specifically for models such as the Polaris 850 SKS 146, 600 Switchback Assault 144, and more. This high-performance shock absorber features a 5-click compression adjustment system, allowing riders to fine-tune their ride for optimal comfort and handling across varied trail conditions. The anodized dual ring locking adjusters ensure preload settings remain secure once adjusted, providing consistent performance during rigorous snowmobile adventures.
Constructed with a hardened Chromoly shaft, this shock offers increased strength and longevity, even under demanding conditions. The threaded body design allows for precise preload adjustments, giving riders the ability to customize their suspension setup easily. All shocks are built with powder-coated springs to resist corrosion and ensure durability, while the forged aluminum eyelets with premium steel and NBR bushings contribute to smooth operation and reliable performance.
The Arctic Cat and Polaris-specific reservoirs feature a finned cooling system that helps reduce operating temperatures, which enhances overall performance and extends service life. The shocks also include compression and rebound adjustments—front and rear track shocks with these features are available for specific Ski-Doo models, whereas Arctic Cat and Polaris track shocks primarily offer compression adjustment. Rebuild kits and replacement parts are readily available, allowing for easy servicing and custom valving options. Whether you're tackling deep snow or uneven terrain, these shocks are designed to provide a smooth, controlled ride while standing up to harsh winter conditions.
Sold individually, the LEN Performance LS4-50000R shocks are a vital upgrade for snowmobilers seeking durability, precise adjustability, and exceptional performance from their suspension components.

Features:

• 5-click compression adjustment for easy trail and mountain tuning

• Anodized dual ring locking adjusters for secure preload setting

• Finned cooling system in Arctic Cat & Polaris reservoirs to reduce temperatures

• All shocks feature compression and rebound adjustment

• Front and rear track shocks with adjustable features for select models

• Threaded body design for precise preload adjustment

• Rebuild kits and replacement parts available for servicing

• Hardened Chromoly shaft enhances strength and seal life

• Powder-coated springs for corrosion resistance and durability

• Forged aluminum eyelets with premium steel and NBR bushings for smooth operation

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

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