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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 MXZ 850 Snowmobile (2017-2026)
The Ski-Doo MXZ 850 series, powered by the Rotax 850 E-TEC engine, has seen significant developments and a variety of trims from 2017 to 2026. These performance snowmobiles are known for their agility and power, featuring a naturally aspirated 850 E-TEC engine producing 165 horsepower. A more powerful variant, the 850 E-TEC Turbo R, was introduced, offering 180 horsepower.
The REV Gen4 platform was launched in 2017, bringing a narrower chassis and improved ergonomics. In 2023, the REV Gen5 platform was introduced for MXZ 850 E-TEC models, featuring a refined design, new LED headlights, and an engine cradle for reduced noise and vibration. The 180-horsepower 850 E-TEC Turbo R engine also became available on select MXZ models starting in 2023, and more broadly in 2024.
Q: How can I ensure parts fit my MXZ 850?
R: Use our year and trim selector at the top of the page to find the exact parts for your specific model.
Maintenance
| Component | Interval | Details |
| Oil Filter / Oil Injection Pump Strainer | Check oil level before every ride; Inspect/clean strainer every 3 years or 10,000 km; Replace in-line fuel filter every 5 years | 2-stroke engines do not have a traditional engine oil filter. Oil is mixed with fuel via an injection system. |
| Drive Belt | Inspect annually (pre-season) or every 3,000 km | Visually check and clean drive and driven pulleys. Inspect before every ride for signs of wear (cracking, fraying). |
| Spark Plug | Replace every 3 years or 10 000 km | It is recommended to replace them before the start of the season for moderate use. |
| Air Filter | Clean regularly | No specific periodic replacement interval is detailed. Clean to prevent clogging. |
| Coolant | Check density annually (pre-season) or every 3,000 km; Replace every 5 years | Check coolant level before every ride when the engine is cold. |