1. The 850 engine is one of the strongest mid-class ATV motors ever made
With 78 horsepower, the Rotax 854cc V-Twin outperforms many 1000cc engines from older generations.
2. It’s tuned specifically for mud riding
The XMR version uses a unique calibration that prioritizes low-end torque, throttle response, and cooling under heavy load.
3. The radiator is relocated from the factory
Unlike most ATVs, the XMR 850 comes with a high-mounted radiator to prevent clogging in deep mud. This is normally an aftermarket upgrade on other machines.
4. The engine breathes through factory snorkels
The intake and CVT are snorkeled from the factory, allowing the engine to run in water and mud that would drown a standard Outlander.
5. The Rotax V-Twin design is shared across multiple Can-Am platforms
This engine family powers Outlanders, Renegades, and even some side-by-sides, known for reliability and strong torque curves.
6. The 850 is smoother than the 1000R
Many riders prefer the 850 because it vibrates less, revs more cleanly, and has a more controllable powerband in technical terrain.
7. It has one of the best power-to-weight ratios in the ATV world
The XMR 850’s combination of horsepower and chassis weight makes it extremely quick for a mud-built machine.
8. The CVT is tuned for aggressive clutching
The XMR clutch setup is designed to handle big mud tires and heavy loads without burning belts as quickly as standard models.
Information
Engine Engine Type: Rotax 854cc V-Twin
Horsepower: 78 hp
Cooling: Liquid-cooled with a relocated radiator for mud riding
Intake: Factory snorkeled air intake and CVT system
Fuel System: Electronic Fuel Injection (EFI) with Intelligent Throttle Control (iTC)
Valvetrain: SOHC, 8 valves
Starter: Electric
Magneto Output: 650 W
Engine Family Notes: Same Rotax V-Twin architecture used across Outlander and Renegade platforms
Transmission and Driveline Transmission: CVT with P/R/N/H/L
Engine Braking: Standard
Driveline: Selectable 2WD / 4WD / Lock 4WD
Front Differential: Visco-4Lok (full locking capability)
Dimensions and Capacities (Engine-Relevant) Estimated Dry Weight: Manufacturer lists model-specific weights; XMR trim is heavier due to mud equipment
Fuel Capacity: 5.4 gallons
Cooling Enhancements: High-mount radiator and mud-optimized airflow
Key Engine-Related Features Factory snorkels for intake and CVT
Heavy-duty bumpers and mudguards
3,500-lb winch (standard on XMR trim)
Riding Modes: iTC throttle mapping for mud and technical terrain