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2027 Arctic Cat M 858 Sno Pro ALPHA ONE

  • 2027 Arctic Cat M 858 Sno Pro ALPHA ONE
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Overview

M

An Extension of Your Instincts

If you ride deep powder, you need a snowmobile that’s built to a higher standard. With the ultra-agile CATALYST™ platform and your choice of ALPHA ONE® mono-rail or twin-rail suspension, this lineup floats, climbs and carves with purpose.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE M 858 Sno Pro ALPHA ONE

Mountain Riding Reinvented

  • 858cc C-TEC2 Twin Cylinder EFI Engine
  • AWS™ 36 Front Suspension
  • AC5S Premium Shocks
  • ALPHA ONE Mono-Rail Suspension
  • 15” x 146”/154” x 2.6” PowerClaw Track
  • 15” x 154”/165" x 3.0” PowerClaw Track
  • Sport Gauge or Arctic Cat G8 Display Option
Specifications
Model
M
Category Name
Snowmobiles
Year
2027
Sale Type
New
Manufacturer
Arctic Cat
engine
Cooling
Liquid
Exhaust
APV IV with full stainless steel exhaust & EGT sensors
Ignition
Digitally Controlled CDI
Cylinders
2
Engine Type
2-Stroke
Lubrication
Electronic Injection
Displacement
858cc
Bore X Stroke
85 x 75.6 mm
Fuel Capacity
10.4 gal
Fuel Delivery
Next Generation C-Tec2
Minimum Octane
91
Oil System Capacity
3.0 qt
Engine Stator Output
270W @ 3000 RPM
Coolant System Capacity
4.2 qt
powertrain
Brakes
Stealth 88 Hydraulic Master Cylinder
Gearing
24/63 (2.6 in) 22/64 (3.0 in)
Reverse
Push-button Engine
Chain Pitch
Belt
Drive Clutch
ADAPT
Drive System
AC M Belt Drive
Driven Clutch
ADAPT
Clutch Calibration
6,000-8,000 ft
Track Drive Sprocket
7 tooth, 3.5 pitch, exvolute Or 9 tooth, 2.86 pitch, exvolute
suspension
Ski Shocks
AC5S
Rear Travel
13.5 or 14.5 or 15.5
Front Travel
7.6 in
Rear Suspension
ALPHA-ONE Rear Suspension
Front Suspension
AWS 36
Rear Track Shock
AC5S
Front Track Shock
AC5S
dimension
Lug
2.6in. Or 3.0in
Pitch
2.86 in. Or 3.50 in.
Ski Stance
35-37 in - Adjustable
Track Type
PowerClaw
Runner Type
Single Runner w/ Carbide
Track Width
15 in
Track Length
146 in or 154 in or 165 in
Ski Type/Width
G2 ProClimb - 7 in
Overall Chassis Width
42-44 in
Overall Chassis Height
50 in
Overall Chassis Length
126.5 in. Or 131 in.
instrumentation
Oil
LCD Icon (Sport) Or Digital (G8)
Fuel
Digital
Hours
Digital
Coolant
Digital Bar Graph
Odometer
Digital Bar Graph (Sport) Or LCD Icon (G8)
Tachometer
Digital
Speedometer
Digital
Type Of Gauge
G8, G8 w/o GRR
features
Color
Black
Seating
Mountain
Starter
Manual Or Push-Button Electric Start
Lighting
LED
Handlebars
Hooked w/grab handle
Heat Exchanger
Front/Long tunnel
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
main features

2027 Arctic Cat M 858 Sno Pro ALPHA ONE 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 at one with the sled. With enhanced ergonomics, a lower center of gravity, our exclusive laydown engine design, specially calibrated suspension and more, this changes everything.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE Lightweight, Yet Powerful

Digital

Push the limits with a strong, responsive output across the full RPM range with a consistent pull you can feel. The 858 two-stroke EFI engine is designed for seamless integration with the Arctic Cat CATALYST platform. Patented exhaust valves and a sealed intake system maximize airflow and throttle response, while a purpose-built design reduces weight. All resulting in a compact, durable package built to perform season after season.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE Keep Yourself Planted

TWIN RAIL SUSPENSION

The twin rail suspension is built for one thing: carving and climbing with control. With two rails, it delivers a solid, predictable feel that keeps the track straight and the power locked in — even when the hill gets rutted, windblown or near vertical. Compared to single rail setups, it’s less flickable but more planted — perfect for riders who’d rather hold the line than play around it.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE OPTIMIZED FOR DEEP SNOW

AWS 36 FRONT SUSPENSION

The AWS 36 Front Suspension was designed specifically with the M 600 Sno Pro in mind. With lightweight spindles and precision engineered geometry, this suspension system optimizes your performance in deep snow.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE ULTIMATE ADJUSTABILITY

AC5S SHOCKS

Meet our anything-but-stock shocks. AC5S ski, front and rear track shocks are designed and calibrated at Arctic Cat for Sno Pro® sleds and feature a unique color scheme. The 5-position adjustment with adjustable spring preload gives you even more flexibility to finetune your ride.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE 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.

2027 Arctic Cat M 858 Sno Pro ALPHA ONE UNPRECEDENTED TRACTION

POWERCLAW TRACK

Unlock the backcountry with PowerClaw™, 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 lugs.

2027 Arctic Cat M 858 Sno Pro ALPHA ONEEASIER STEERING

G2 PROCLIMB SKIS

The lightweight G2 ProClimb™ 7-inch Mountain Ski is tapered to stay on top of the snow. The ski works in tandem with the AMS spindles for easier steering and better deep snow performance.
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