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2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES Specs

SUMMARY

The 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES is a Mountain Style Snowmobile equipped with an 858cc, Liquid Cooled, In-Line, Reed Valve, 2-Stroke Engine and a Continuously Variable (CVT) Transmission.

It has a Independent Double Wishbone Front Suspension with 7.6 inches of travel. The ALPHA-ONE Rear Suspension has 13.5 inches of travel with a Shock Mounted Adjustment. The M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES has Rear Hydraulic Disc Brakes.

The M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES was introduced in 2025 and is New for 2025. It includes a 12 month Limited warranty.

2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES
MSRP: $19,099 Est. Monthly Payment*: $318

CURRENT OFFERS

Updating Models

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2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS
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2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS ES 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS ES
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2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC
MSRP: $18,699

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2025 Lynx Shredder RE 850 E-TEC 146 2.5 2025 Lynx Shredder RE 850 E-TEC 146 2.5
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2025 Lynx Shredder RE 850 E-TEC Turbo R 146 2.5 2025 Lynx Shredder RE 850 E-TEC Turbo R 146 2.5
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2025 Polaris RMK KHAOS 146 9R 2025 Polaris RMK KHAOS 146 9R
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Updating Inventories

CLASSIFIEDS/INVENTORY - All | Polaris |

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INCENTIVES

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SPECIFICATIONS (VIEW ALL SPECS)

Manufacturer Arctic Cat
Model M 858 Mountain Cat Alpha One
Year 2025
Class Mountain
Country of Origin USA
MSRP $19,099
Seat Specifications
Number Of Seats 1
Misc
Manufacturer Recommend Minimum Age
Introduction Year 2025
Major Revision Year 2025
Generic Type (Primary) Mountain
Manufacturer Country USA
Manufacturer Type Mountain
Generic Type 2
Track
Lug Height (in) 2.6
Track Length (in) 146
Track Width (in) 15
Rear Suspension
Rear Travel (in) 13.5
Rear Suspension Brand Name ALPHA-ONE
Adjustment Type Shock Mounted Adjustment
Dimensions
Length (in) 122
Minimum Ski Stance (in) 35
Height (in) 50
Price
Warranty (Months) 12
Warranty (Condition) Limited
Engine
Cylinders 2
Engine Stroke 2-Stroke
Displacement (cc) 858
Valve Configuration Reed Valve
Starter Electric
Engine Type In-Line
Cooling Liquid
Front Suspension
Front Travel (in) 7.6
Front Suspension Type Independent Double Wishbone
Adjustment Type Shock Mounted Adjustment
Capacities
Fuel Capacity (gal) 10.4
Transmission
Primary Drive (Rear Wheel) Belt
Transmission Type Continuously Variable (CVT)
Reverse Yes
Brakes
Rear Brake Type Hydraulic Disc
Updating Dealers

PAYMENT CALCULATOR

Price: $ Down Payment: $ Interest Rate: % Loan Term: Years Monthly Payment Total Loan Cost

KEY DIFFERENTIATORS

The base price of the 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES Snowmobile is $19099. This is $3486.36 more expensive than its competition.

 

The In-Line engine in the 2025 Arctic Cat M 858 Mountain Cat Alpha One 146 2.6 AWS w/ATAC ES Snowmobile has a displacement of 858 cc which is 15.72% more than its competition.

 

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