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Description
Bred from a rich history of experienced belt builders, the Dayco XTX belt is specifically engineered to maximize the performance of the most extreme, high horsepower snowmobiles. Beating the competition on the race course is just one of many aspects that sets the XTX belt apart from its competition. Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better in belt operating temperature and efficiency than leading competitors. Its innovative break-through design of deeper cogs on top and rounded cogs on the bottom yield the advantages of ultimate flexibility and longer belt life while being a better alternative to the original equipment belt.
Key Features
- Faster and more consistent throttle response at high speeds
- Quicker throttle response at mid-speed acceleration
- Greater secondary acceleration at high RPMs
- Greater secondary acceleration as primary acceleration increases
- Reduction in slippage during the highest levels of torque
- Providing more power to track
- Better performance during deceleration (more responsive engine braking)
- Tested and proven reliability at well over 12,000 RPMs
- Cooler-running temperature than the leading competitors
Technical Specifications
- MFG. Part Number XTX5057
Vehicle Information
Polaris RMK 850 Snowmobile (2020-2026)
The Polaris RMK 850 series (2020-2026) represents a high-performance mountain snowmobile, driven by the potent 850 Patriot engine. This 840cc, 2-cylinder, liquid-cooled, 2-stroke engine is renowned for its robust power delivery. The naturally aspirated version produces approximately 165 to 168 horsepower, while the turbocharged Patriot Boost option delivers between 181.5 and 185 horsepower at sea level, with up to a 50% power increase at high altitudes. This series saw significant mid-cycle developments. In 2022, the Matryx chassis was introduced for mountain models, featuring improved ergonomics and narrower bodywork. This year also marked the availability of the 850 Patriot Boost engine option, specifically for the new Matryx Slash models, which feature a shorter tunnel design. By 2025, the "Slash" layout became a standard feature across all PRO RMK and RMK Khaos models. Finally, the 2025 and 2026 model years introduced the RMK SP trim, designed as a more approachable mountain sled. FAQ:
Q: How do I know if this part fits my Polaris RMK 850?
R: Please use the year and model selector at the top of the page to confirm compatibility.
Maintenance
| Component | Interval | Details |
| Spark Plugs | 1 600 km ou annuellement / 1 600 km or annually | |
| Chaincase Oil | 3 200 km ou annuellement / 3 200 km or annually | |
| Coolant | 3 200 km ou annuellement / 3 200 km or annually | |
| Brake Fluid | 3 200 km ou annuellement / 3 200 km or annually | |
| Suspension Lubrication | 800 km ou 50 heures / 800 km or 50 hours |