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Description
- First factory pre-studded track at 15° angle
- First design using 12-pitch lug pattern
- Optimized steel studs with carbide tips
- Provides optimized attack angle and more responsiveness with 75% studs pointing forward vs. 25% backward
- Delivers great acceleration on packed snow and ice
- Offers better control for safer handling and efficient braking performance
- Increases number of scratch line to 80 for more aggressive handling and unraveling of packed snow
- Provides better traction and acceleration on hard-packed snow and ice
- Keeps sound and vibrations to a minimum
- Ensure durability and resistance to abrasion with wide carbide tips
- Offer better grip on hard-packed snow and ice thanks to 1/4" stud exposition
- Anchor solidly in rubber and reduce weight of track thanks to engineered ribbed design
Please Note
Not all tracks can be installed on all sleds without modification. The listings in the application chart fit OEM suspension, track width, length, and drive pitch only. To determine if an optional track is compatible with a particular snowmobile, you must check the bulkhead, tunnel, heat exchanger, and suspension wheel positioning for proper clearance.
Technical Specifications
- MFG. Part Number 9439H
Vehicle Information
Ski-Doo Summit 850 Snowmobile (2017-2026)
The Ski-Doo Summit 850 (2017-2026) is a mountain snowmobile designed for deep-snow enthusiasts, renowned for its advancements in engine technology and chassis design. Powered by the 849cc Rotax 850 E-TEC two-stroke engine, this model has evolved to deliver exceptional performance. The 2017-2026 period saw significant innovations. In 2017, the REV Gen4 platform and the 850 E-TEC engine were introduced, optimizing handling and rider control. The 2020 model year brought the 850 E-TEC Turbo engine, a first for a mass-produced turbocharged two-stroke, delivering 165 horsepower up to 8,000 feet of elevation. A major shift occurred in 2023 with the launch of the narrower and lighter REV Gen5 platform, accompanied by the powerful 180-horsepower 850 E-TEC Turbo R engine. Continuous refinements, such as in 2026 with the Summit X Expert Package, further enhanced lightness and maneuverability. FAQ:
Q: How can I ensure this part fits my snowmobile?
A: To guarantee compatibility, please use the year and model selector located at the top of this page. Q: My model year is not listed, what should I do?
A: If your model year does not appear, please contact our customer service for assistance.
Maintenance
| Component | Interval | Details |
| Oil Filter (Injection Oil System) | Check before every ride | 2-stroke models do not have a traditional engine oil filter. Check the injection oil reservoir level and top off as needed. |
| Drive Belt | Inspect every 50 hours | Check for wear, damage, or glazing. Typical lifespan: 2,400 to 4,800 km depending on riding style. |
| Spark Plug | Every 3 years or 6,000 km | Replace whichever comes first. Use manufacturer-specified spark plugs. |
| Air Filter | Inspect before every ride | Check the air filter's condition as part of the pre-ride inspection. Clean or replace as needed. |
| Coolant | Replace every 2 years; check density annually or every 3,200 km | Check level when cold before every ride. |