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Description
All-around performer in all types of snow Designed for all-around trail performance - excellent traction on both hard-pack and loose, less-compacted snow with ride comfort features.
FEATURES
- Tapered outside lug edges for less side bite when cornering § Sharp angled lugs for excellent bite on hard-pack snow
- Cupped center and full outer lugs for traction on loose, less-compacted snow
- Lug design generates less noise for improved rider comfort on hard-packed groomed trails
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 9306C
Vehicle Information
Arctic Cat ZR 858 Snowmobile (2024-2026)
The Arctic Cat ZR 858 snowmobile, available for the 2025 and 2026 model years, is built on the innovative CATALYST platform. It is powered by an 858cc, 2-stroke, liquid-cooled C-TEC2 twin-cylinder EFI engine. This powerful engine, estimated to produce between 170 and 183 horsepower, represents an 11% increase over the previous C-TEC2 800 engine, placing it firmly in the "165-class" for performance. While the CATALYST chassis was introduced in 2024 with 600-class engines, the ZR 858 variant debuted in 2025, marking a significant evolution for the model line. For the 2026 model year, the 858 engine received notable upgrades to enhance performance and durability. These include an average 26% increase in oil supply across the operating range, revised fuel mapping and ignition curves for broader engine operation, and a sealed airbox. Additionally, the CATALYST chassis for 2026 858 models features revised engine mounts with a new rubber durometer and orientation on the magneto side, specifically designed to reduce vibration. Various trims, including Sno Pro and R-XC, are offered for these model years. FAQ:
Q: How do I ensure I select the correct parts for my ZR 858?
A: Please use our year and edition selector at the top of the page to find parts specifically compatible with your snowmobile.
Maintenance
| Component | Interval | Details |
| Drive Belt | 2,400 to 4,800 km | Inspect regularly for wear and replace as needed. |
| Coolant | Every 2 years | Check level and condition, replace every two years. |
| Spark Plugs | Inspect regularly | Inspect for wear and replace if signs of degradation are present. |
| Air Filter | Inspect regularly | Check, clean, or replace as needed for optimal performance. |