2025 Arctic Cat M 858 Alpha One Sno Pro 165 in / 3.00 in Push Button Medium Green/Black- N8076

MSRP $20,589

$16,499

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    Description

    2025 Arctic Cat M 858 Alpha One Sno Pro 165 in / 3.00 in Push Button Medium Green/Black

    Re-Inventing Mountain Riding
    Mountain riding just got a lot more interesting. The Arctic Cat M ALPHA ONE will revolutionize how you explore the backcountry with the groundbreaking CATALYST platform.

    Features May Include:

    A NEW BREED OF POWER

    • ALL NEW 858 ENGINE

    The all-new 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.

    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.

    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.


    Dealer Notes

    2025 Arctic Cat® M 858 Mountain Cat Alpha One 165"/3.00" Push Button

    A THRILL SEEKER'S DREAM

    With bold styling and bolder moves, the Mountain Cat is built for next-level riding. By incorporating cutting-edge features, the Mountain Cat shows even the most diehard thrill-seekers the ride of their lives.

    Features may include:

    A NEW BREED OF POWER

    • ALL NEW 858 ENGINE

    The all-new 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.

    NAVIGATION AT YOUR FINGERTIPS

    • ARCTIC CAT G8 DIGITAL DISPLAY

    The all new Arctic Cat G8 digital display, powered by Garmin, offers seamless integration with your sled. A built in GPS with preloaded trail maps, customizable data fields and phone connectivity are just some of the features that make G8 essential for every ride. Plus, the group ride functionality utilizes satellite or celluar data, dependent on region, to share the ride with up to 15 people.

    OPTIMIZED FOR DEEP SNOW

    • AWS 36 FRONT SUSPENSION

    The AWS 36 Front Suspension was designed specifically with the M 858 Mountain Cat 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 utilizies Arctic Cat's belt drive system rather than a chain drive. This allows for enahnced durability and fewer parts in the system. The adjustable center distance allows for multiple ratio options and makes servicing simple.

    UNPARALLELED VERSATILITY

    • FOX FLOAT QS3 SHOCKS

    ALPHA ONE suspension is easily adjustable for ride and intensity with FOX FLOAT® shocks: from the three-position QS3 on the ski and front arm, to a semi-locking QSL on the rear, you get easy adjustability for maximum deep snow performance.

    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 enhanced maneuverability, giving you tighter turns than ever before.

    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 its unique asymmetrical design, everyone will know that you're on an Arctic Cat.


    Info

    Industry

    Snowmobile

    Make

    Arctic Cat

    Model

    M 858 Alpha One Sno Pro 165 in / 3.00 in Push Button

    Trim

    Medium Green/Black

    Year

    2025

    Msrp

    20589

    Price

    16499

    Stock Number

    N8076

    Category

    Snowmobile

    Subcategory

    Mountain

    Condition

    New

    Location

    Storm Lake Honda

    Color

    Green


    Specifications

    Engine Type

    858, 2-Stroke

    Engine (Displacement)

    858cc

    Cooling System

    Cooling: Liquid | Capacity: 4.2 qt

    Bore x Stroke

    85 mm x 75.6 mm

    Lubrication System

    Electronic Injection

    Ignition/Starter

    Starter: Push-Button Electric Start | Ignition: Digitally Controlled CDI

    Torque

    Stator Output: 270W @ 3000 RPM

    Exhaust

    APV IV w/ Full Stainless Steel Exhaust & EGT Sensors

    Fuel Type

    Delivery: Next Gen. C-TEC2 | Minimum Octane: 91

    Drive System

    AC M Belt Drive

    Clutch

    ADAPT | Driven: ADAPT | Calibration: 6,000-8,000 ft

    Brake

    Stealth Hydraulic Master Cylinder

    Front Suspension

    AWS 36

    Front Travel

    7.6 in

    Rear Suspension

    ALPHA ONE Rear Suspension

    Front Track Shock

    Track: AC5S

    Rear Track Shock

    Track: AC5S

    Rear Travel

    13.5 in, 14.5 in, or 15.5 in

    Length

    Chassis: 126.5 in or 131 in

    Width

    Chassis: 42-44 in

    Height

    Chassis: 50 in

    Track Width

    15 in

    Track Length

    165 in

    Track Height

    3.00 in

    Oil Capacity

    System: 3.0 qt

    Fuel Capacity

    10.4 gal

    Lights

    LED

    Speedometer

    Digital