FEATURED 2026 Arctic Cat M 858 Sno Pro 154 in/3.00 in Push Button Electric - Sport Gauge- B1661











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Description
2026 Arctic Cat M 858 Sno Pro 154 in/3.00 in Push Button Electric - Sport Gauge
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.
Features May Include:
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.
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.
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.
Dealer Notes
2026 Arctic Cat® M 858 Sno Pro 154"/3.00" Manual - Sport Gauge
Mountain Riding Reinvented
Features may include:
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.
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.
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.
OPTIMIZED FOR DEEP SNOW
AWS 36 FRONT SUSPENSION
The AWS 36 Front Suspension was designed specifically with the M 858 in mind. With lightweight spindles and precision engineered geometry, this suspension system optimizes your performance in deep snow.
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.
Info
Industry
Snowmobile
Make
Arctic Cat
Model
M 858 Sno Pro
Trim
154 in/3.00 in Push Button Electric - Sport Gauge
Year
2026
Price
18249
Stock Number
B1661
Category
Snowmobile
Subcategory
Mountain
Condition
New
Location
Odsysey Motorsports
Fuel Type
Minimum Octane: 91
Color
Black
Specifications
Engine Type
858, 2-Stroke
Drivetrain
AC M Belt Drive
Fuel Capacity
10.4 gal
Lubrication System
Electronic Injection
Height
Chassis: 50 in
Ignition/Starter
Digitally Controlled CDI
Engine (Displacement)
858 cc
Seating
Mountain
Exhaust
APV IV w/ Full Stainless Steel Exhaust & EGT Sensors
Bore x Stroke
85 mm x 75.6 mm
Fuel System
Next Gen. C-TEC2
Oil Type
3.0 qt
Length
Chassis: 126.5 in or 131 in | Track: 154 in
Speedometer
Digital
Headlight(s)
LED
Fuel Type
Gas
Fuel Efficiency
4.2 qt
Cooling System
Liquid
Width
Chassis: 42-44 in | Track: 15 in