Upgrade the rear suspension of compatible Ski-Doo snowmobiles with the FOX Factory Series 1.5 Zero QS3/QSE LRW rear track shock, manufacturer part number 853-02-067 and vendor part number 530-1267. This refined Factory Series shock is designed for demanding trail, mountain, and deep-snow riding, combining reduced weight with position-sensitive damping for improved ride comfort and bottom-out control.
The Rifle-Bore shock body uses internal spiral grooves to direct oil around the main piston during the initial portion of travel, reducing damping force in the ride zone for a smoother, more compliant feel. As the shock approaches the final 30% of travel, the grooves end and force oil through the piston, increasing bottom-out resistance during hard landings and aggressive impacts. The QS3 system provides three-position compression adjustment, while the QSE electronic lockout allows select applications to lock the rear track shock using a handlebar-mounted switch.
Built for serviceability and long-term performance, this FOX shock features a lightweight piston and shaft, optimized reservoir length, a double-digressive aluminum piston, high-pitch spring design, high-volume bearing, and aluminum and injection-molded poly mounting hardware. The black Type III anodized body and orange reservoir caps provide the updated 2026 Factory Series appearance. The shock is fully rebuildable and revalveable, allowing suspension tuning as riding conditions and preferences change.
Fitment includes 2023 Ski-Doo Freeride 850 E-TEC models with 146-inch and 154-inch tracks, Freeride 850 E-TEC Turbo R models with 146-inch and 154-inch tracks, Summit SP 850 E-TEC models with 146-inch and 154-inch tracks, and Summit X 850 E-TEC models with 154-inch tracks, including Expert Package configurations. It also fits select 2024 Ski-Doo Summit X 850 E-TEC 154-inch and Summit X 850 with Expert Package E-TEC 154-inch models. Verify the exact model, track configuration, and electronic lockout requirements before installation.
Features:
- Manufacturer: FOX
- Brand: FOX
- Manufacturer Part Number: 853-02-067
- Vendor Part Number: 530-1267
- Model: Factory Series 1.5 Zero QS3/QSE LRW Rear Track Shock
- Application: Rear track suspension shock for compatible Ski-Doo snowmobiles
- Rifle-Bore Bodies: Position-sensitive damping provides a plush ride zone and increased bottom-out resistance
- QS3 Adjustment: Three-position compression adjustment for quick suspension tuning
- QSE Lockout: Electronic rear track lockout on select models through a handlebar-mounted switch
- Lightweight Construction: Features a 60% lighter piston and 20% lighter shaft
- Serviceability: Fully rebuildable and revalveable for long-term suspension tuning
- Hardware: Aluminum and injection-molded poly mounting hardware
- Finish: Black Type III anodized body with orange reservoir caps
- Fitment: Select 2023 and 2024 Ski-Doo Freeride and Summit 850 E-TEC models with 146-inch and 154-inch tracks
Fitment:
2023 Ski-Doo Freeride 850 E-TEC 146"
2023 Ski-Doo Freeride 850 E-TEC 154" Turbo
2023 Ski-Doo Freeride 850 E-TEC 154"/2.5"
2023 Ski-Doo Freeride 850 E-TEC 165"
2023 Ski-Doo Freeride 850 E-TEC 165" Turbo
2023 Ski-Doo Freeride 850 E-TEC Turbo R 146"
2023 Ski-Doo Freeride 850 E-TEC Turbo R 154"
2023 Ski-Doo Summit Edge 850 E-TEC 154" 2.5
2023 Ski-Doo Summit Edge 850 E-TEC 165"
2023 Ski-Doo Summit SP 850 E-TEC 146"
2023 Ski-Doo Summit SP 850 E-TEC 154"
2023 Ski-Doo Summit SP 850 E-TEC 165"
2023 Ski-Doo Summit X 850 E-TEC 154"/3.0"
2023 Ski-Doo Summit X 850 E-TEC 165"/2.5"
2023 Ski-Doo Summit X 850 E-TEC 165"/3.0"
2023 Ski-Doo Summit X 850 E-TEC Turbo R 154"/3.0"
2023 Ski-Doo Summit X 850 E-TEC Turbo R 165"/3.0"
2023 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/3.0"
2023 Ski-Doo Summit X 850 with Expert Package E-TEC 165"/3.0"
2023 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 154"/3.0"
2023 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 165"/3.0"
2023 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 175"
2024 Ski-Doo Freeride 850 E-TEC 146"
2024 Ski-Doo Freeride 850 E-TEC 154"/3.0"
2024 Ski-Doo Summit X 850 E-TEC 154"/3.0"
2024 Ski-Doo Summit X 850 E-TEC 165"/2.5"
2024 Ski-Doo Summit X 850 E-TEC 165"/3.0"
2024 Ski-Doo Summit X 850 E-TEC Turbo R 154"/2.5"
2024 Ski-Doo Summit X 850 E-TEC Turbo R 154"/3.0"
2024 Ski-Doo Summit X 850 E-TEC Turbo R 165"/3.0"
2024 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/3.0"
2024 Ski-Doo Summit X 850 with Expert Package E-TEC 165"/3.0"
2024 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 154"/3.0"
2024 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 165"/3.0"
2024 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 175"
2025 Ski-Doo Freeride 850 E-TEC 146"
2025 Ski-Doo Freeride 850 E-TEC 154"/2.5"
2025 Ski-Doo Freeride 850 E-TEC 154"/3.0"
2025 Ski-Doo Freeride 850 E-TEC 165"
2025 Ski-Doo Summit X 850 E-TEC 154"/2.5"
2025 Ski-Doo Summit X 850 E-TEC 154"/3.0"
2025 Ski-Doo Summit X 850 E-TEC 165"/2.5"
2025 Ski-Doo Summit X 850 E-TEC 165"/3.0"
2025 Ski-Doo Summit X 850 E-TEC Turbo R 154"/3.0"
2025 Ski-Doo Summit X 850 E-TEC Turbo R 165"/2.5"
2025 Ski-Doo Summit X 850 E-TEC Turbo R 165"/3.0"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/2.5"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/3.0"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC 165"/2.5"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC 165"/3.0"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 154"/2.5"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 154"/3.0"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 165"/2.5"
2025 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 165"/3.0"
2026 Ski-Doo Freeride 850 E-TEC 146"
2026 Ski-Doo Freeride 850 E-TEC 154"/2.5"
2026 Ski-Doo Freeride 850 E-TEC 154"/3.0"
2026 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/2.5"
2026 Ski-Doo Summit X 850 with Expert Package E-TEC 154"/3.0"
2026 Ski-Doo Summit X 850 with Expert Package E-TEC 165"/3.0"
2026 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 154"/3.0"
2026 Ski-Doo Summit X 850 with Expert Package E-TEC Turbo R 165"/3.0"