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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 Backcountry 850 Snowmobile (2019-2026)
The Ski-Doo Backcountry 850, produced from 2019 to 2026, is a crossover snowmobile designed for both trail and deep snow riding. It is powered by the potent 849 cc Rotax 850 E-TEC engine, delivering 165 horsepower. Over the years, the lineup has evolved with enhanced platforms and engine options. Initially built on the REV Gen4 platform (2019-2022/2023), the Backcountry gradually adopted the REV Gen5 platform starting in 2023, becoming widespread by 2025-2026. This transition brought a refined design, improved handling, and modern features such as LED headlights and 10.25-inch touchscreen displays on some models. A significant advancement is the introduction of the 180 hp Rotax 850 E-TEC Turbo R engine, available for the Backcountry X-RS from 2025. Suspension systems were also enhanced, with the arrival of RAS X and RAS RX front suspensions, and the cMotion X rear suspension, for increased performance across all terrains. Key trims include the base Backcountry, Adrenaline, X, and X-RS. FAQ:
Q: How can I ensure parts fit my specific model?
A: Use our year and trim selector at the top of the page to find compatible parts for your Ski-Doo Backcountry 850.
Maintenance
| Component | Interval | Details |
| Oil Filter (2-stroke E-TEC engine) | Not applicable | 2-stroke E-TEC engines do not use a traditional oil filter. Periodically inspect and clean the oil pump strainer. Check injection oil level before every ride. |
| Drive Belt | Check every 50 h | Inspect regularly for damage or excessive wear. Typical lifespan: 2 400 to 4 800 km, depending on riding style. |
| Spark Plugs | As per engine maintenance schedule | Inspect and replace if dirty or worn. Indexing may be required upon replacement; consult the manual. |
| Air Filter | Not applicable | Snowmobiles do not have a replaceable air filter element like cars. Check the air intake area and clear any snow or ice. |
| Coolant | Replace every 2 years | Check level regularly and inspect the system for leaks. |