Description

M 858 SNO PRO
An Extension of Your Instincts
Designed on the revolutionary CATALYST™ platform, the M ALPHA ONE is perfectly balanced to respond to your every move, keeping you agile, stable and fully in control. It’s more than a ride — it gives you command over the backcountry.
154″/2.60″
154″/3.00″
165″/3.00″ |
PowerClaw |
Manual – Sport Gauge
Push Button Electric – Sport Gauge
Manual – Arctic Cat G8 Gauge
Push Button Electric – Arctic Cat G8 Gauge |
AWS |
Black/Dusk Purple |
| Track/Lug |
Track Type |
Starter |
Suspension |
Color |

LEARN MORE
PEAK PERFORMANCE UNLOCKED
CATALYST Chassis
The revolutionary CATALYST platform has been built from the ground up to optimize every aspect of your ride, so much so that you’ll feel like you’re one with your sled. With enhanced ergonomics, a lower center of gravity, our exclusive laydown engine design, specially calibrated suspension and more, this changes everything.
LEARN MORE

UNMATCHED CONTROL
ALPHA ONE SINGLE-BEAM REAR SUSPENSION
Arctic Cat’s revolutionary single-beam rear suspension changes the game for mountain snowmobiles. The unique monorail design sheds snow to keep your sled light and equalizes floatation across the width of the track. ALPHA ONE offers unmatched maneuverability and flotation – allowing you effortlessly go where others are left stuck and tired.
LEARN MORE

OPTIMIZED FOR DEEP SNOW
AWS 36 FRONT SUSPENSION
The AWS 36 Front Suspension was designed specifically with the M 600 in mind. With lightweight spindles and precision engineered geometry, this suspension system optimizes your performance in deep snow.
LEARN MORE
ULTIMATE ADJUSTABILITY
AC5S SHOCKS
Designed by Arctic Cat, for Arctic Cat, the all new AC5S shocks offer 5 different positions and adjustable spring preload. They are uniquely calibrated for backcountry riding and showcase both Arctic Cat’s legacy of durability and its signature style.

SMOOTH POWER DELIVERY
ADAPT CVT SYSTEM
With its lightweight, narrow design that increases performance and belt life, as well as the industry’s only self-adjusting clutch, the ADAPT™ CVT system provides better throttle response, smoother power delivery and a ride like no other.
LEARN MORE

A NEW BREED OF POWER
858 ENGINE
The 858 two-stroke engine is designed for seamless integration into the new CATALYST platform. With an 8% increase in displacement, this engine houses an 11% increase in output over the C-TEC2 800 and weighs 4% less. It features an optimized air intake system, a new exhaust valve design for more consistent power and cleaner emissions, and an all-new crankcase for increased stroke and integrated engine mounts.
LEARN MORE

UNPRECEDENTED TRACTION
POWER CLAW TRACK
Unlock the backcountry with Power Claw™, a lightweight track that delivers the ultimate deep snow traction and performance. The staggered, forward curving paddle tower design won’t fold over, allowing you to float over the deepest snow. Available in 146-in and 154-in with 2.6-in or 3.0-in lugs.

INCREASED DURABILITY
ARCTIC CAT MOUNTAIN BELT DRIVE
The CATALYST platform utilizes Arctic Cat’s belt drive system rather than a chain drive. This allows for enhanced durability and fewer parts in the system. The adjustable center distance allows for multiple ratio options and makes servicing simple. Additionally, the track included with the AC Mountain Belt Drive ensures that the sled gets up on the snow quicker, avoiding trenching issues.

QUICKLY CONNECT
ATACH LATCHING SYSTEM
Adding accessories to your sled is a snap with this 4-point latching system. You can install and remove accessories in seconds, so no matter where you are, you can customize your sled with ease.
LEARN MORE

BRIGHTEN ANY RIDE
ASYMMETRICAL LED HEADLIGHT
A premium LED headlight is crucial to optimize your visibility. Equipped with both high and low beams, this headlight casts an LED light pattern with great range and width. Plus, with it’s unique asymmetrical design, everyone will know that you’re on an Arctic Cat.
ENGINE
|
M 858 SNO PRO |
| Engine Type |
858, 2-Stroke |
| Displacement (cc) |
858cc |
| Cooling |
Liquid |
| Cylinders |
2 |
| Bore x Stroke (mm) |
85 x 75.6 mm |
| Lubrication |
Electronic Injection |
| Ignition |
Digitally Controlled CDI |
| Engine Starter Output |
270 W @ 3000 RPM |
| Fuel Delivery |
Next Gen. C-TEC2 |
| Exhaust |
APV IV w/ Full Stainless Steel Exhaust & EGT Sensors |
| Fuel Capacity |
10.4 gal. |
| Oil System Capacity |
3.0 qt. |
| Coolant System Capacity |
4.2 qt. |
| Minimum Octane |
91 |
POWERTRAIN
|
M 858 SNO PRO |
| Drive Clutch |
ADAPT |
| Driven Clutch |
ADAPT |
| Drive System |
AC M Belt Drive |
| Brakes |
Stealth 88 Hydraulic Master Cylinder |
| Clutch Calibration |
6,000-8,000 ft. |
| Gearing |
24/63 (2.6 in) 22/64 (3.0 in) |
| Chain Pitch |
Belt |
| Track Drive Sprocket |
9 Tooth, 2.86 Pitch, Exvolute or 7 Tooth, 3.50 Pitch, Exvolute |
| Reverse |
Push-Button Engine |
SUSPENSION
|
M 858 SNO PRO |
| Front Suspension |
Arctic Wishbone Suspension 36 |
| Ski Shocks |
AC5S |
| Sway Bar |
N/A |
| Front Travel |
7.6 in. |
| Rear Suspension |
ALPHA ONE Rear Suspension w/10 in Rear Wheels |
| Front Track Shock |
AC5S |
| Rear Track Shock |
AC5S |
| Rear Travel |
14.5 in or 15.5 in |
DIMENSIONS
|
M 858 SNO PRO |
| Overall Chassis Length |
126.5 in or 131 in |
| Overall Chassis Width |
42-44 in |
| Overall Chassis Height |
50 in. |
| Track Type |
Power Claw |
| Track Width |
15 in. |
| Track Length |
154 in, or 165 in |
| Lug |
2.60 in or 3.00 in |
| Pitch |
2.86 in or 3.50 in |
| Ski Stance |
35-37 in. Adjustable |
| Ski Type/Width |
G2 ProClimb- 7 in. |
| Runner Type |
Single Runner w/ Carbide |
INSTRUMENTATION
|
M 858 SNO PRO |
| Type of Gauge |
Sport or Arctic Cat G8 (CAN w/o GRR) |
| Speedometer |
Digital |
| Tachometer |
Digital |
| Odometer |
Digital |
| Fuel |
Digital |
| Oil |
LCD Icon (Digital G8) |
| Coolant |
Digital Bar Graph (LCD Icon G8) |
| Clock |
N/A (Digital G8) |
| Battery Voltage |
N/A (Digital G8) |
| Altimeter |
N/A (Digital G8) |
| Hours |
Digital |
FEATURES
|
M 858 SNO PRO |
| Color |
Black/Dusk Purple |
| Heat Exchanger |
Front/Short Tunnel |
| Starter |
Manual or Push-Button Electric Start |
| Handlebars |
Hooked w/ Grab Handle |
| Lighting |
LED |
| Seating |
Mountain |
| Standard Accessories |
12V Outlet, Sport Front Bumper, Integrated Goggle Holder, ATACH Mounting, Hand & Thumb Warmers, Ice Scratchers, Lightweight Mountain Brake Disc, Vertical Steering, Tether Switch, Visor Plug-In |
| Windshield |
N/A |
*Vehicle specifications are subject to change.
*Price includes a one year warranty. Price does not include freight or set-up fees and is subject to change.
WARNING: Arctic Cat snowmobiles can be hazardous to operate. For your safety, all riders should read and understand their owner’s manual and safety instructions. Always wear an approved helmet and other safety apparel. Be aware of natural hazards you may encounter and don’t drink and ride. All scenes depicted or described were performed by professional riders under carefully controlled conditions. Never attempt to duplicate these maneuvers or encourage others to do so. Arctic Cat recommends that all operators take a safety training course. For safety and training information, please see your local dealer.