Built for Big Air and Big Climbs, with ALPHA ONE Single-Beam Rear Suspension

Hardcore doesn’t flinch at big challenges or stiff competition. It conquers the backcountry with the revolutionary ALPHA ONE™ Single-Beam Rear Suspension and easily adjustable coil-over FOX® ZERO shocks.


  • ALPHA ONE SINGLE-BEAM REAR SUSPENSION: Our single-beam rear suspension unlocks more maneuverability than any mountain snowmobile in history. Up here, there's only one alpha. See video link for additional details.
  • ASCENDER FLATFORM: The Ascender platform brings together an arsenal of innovations that deliver the highest level of backcountry performance and handling for every Arctic Cat Mountain Snowmobile. See video link for additional details.
  • 8000 SERIES C-TEC2 ENGINE: New for 2020, the next generation 8000 Series C-TEC2 engine delivers a new level of clean Arctic Cat 2-stroke engine performance and technology. This new 794 cc C-TEC2 twin features include new cylinders, pistons, combustion chamber, flywheel and fuel rail; new fuel calibration strategy and Arctic Power Valve system with 3-stage control of the auxiliary exhaust ports via side valves; ECM-controlled electronic oil pump; batteryless EFI; Exhaust Pop Temperature Sensor (EPTS); knock sensor; engine reverse technology. This advanced new technology designed by Arctic Cat and built in St. Cloud, MN delivers ultra-clean, more responsive performance, enhanced power in the 165 hp class of engines, precision oil injection, precision oil injection and exceedingly robust and lightweight design.
  • AMS FRONT SUSPENSION: Arctic Mountain Suspension is tailor-made to maneuver in deep snow. The lightweight, forged-aluminum spindles sit at a 27 degree spindle caster angle, providing optimal ski camber for off-trail cornering and more predictable counter-steering when side-hilling. They’re built to reduce drag, while the dual-phase alloy-steel A-arms are lightweight and durable.
  • FOX 1.5 ZERO QS3 COIL-OVER SKI SHOCKS: A dial mounted on the remote reservoir of these FOX 1.5 ZERO QS3 shocks lets you instantly switch between soft, medium and firm shock calibration to adapt to changing conditions. They utilize a remote reservoir for fade-free performance and coil-over springs to smooth out bumps.
  • POWER CLAW TRACK: Power Claw Track is built lightweight, with a single-ply design and a 3.0-inch pitch — all so you can master deep snow runs. Its stagger-set, curved-forward paddle towers won't fold over or take a set, and Attack 20 paddles let you float over the deep stuff.
  • REINFORCED RUNNING BOARDS: An uncompromising race-replica deserves competition-calibrated components like reinforced running boards for big air and bigger landings.
  • GOGGLE HOLDER: Mounted right in the dash for quick access, this integrated goggle holder keeps a key piece of gear safe and sound.
  • ADJUSTABLE 35.5-37.5 IN. SKI STANCE: Easily adjust your ski stance in seconds — keep it wide for the trails or narrow through the trees.
  • LED HEADLIGHT: Ride until the sun goes down — then keep riding, with this premium LED headlight for night riding

General Information

Manufacturer Arctic Cat
Model Year 2020
Model M 8000 Hardcore Alpha One 165 ES
Model Code S2020M8HHIUSY
Color Charcoal / Green


Length Overall - 137 in.
Height Overall - 50 in.
Width Overall - 42.5-44.5 in.
Weight Dry - 471 lb.

Engine & Drivetrain

Engine 8000 C-TEC2, 2-stroke
Cylinders 2


System capacity - 5 qt.

Displacement 794 cc
Bore x Stroke 85 x 70 mm
Fuel System Dual stage injection
Starting Electric push button

Digital controlled CDI

Engine stator output - 270 W @ 3000 RPM

Lubrication Electronic injection
Drive System Arctic Mountain Drive System
Drive Clutch TEAM Rapid Response II
Driven Clutch TEAM Rapid Reaction BOSS
Drive Sprocket Track - 7 Tooth, 3.5 pitch, Exvolute
Clutch Calibration 6,000 - 8,000 ft.
Reverse Push-button engine

Gearing - 19/50

Chain pitch - 96

Exhaust APV with tuned pipe, pipe sensor and stainless steel manifold and muffler
Brakes Stealth hydraulic master cylinder with lightweight caliper
Fuel Type Minimum octane - 91
Fuel Capacity 11.7 gal.
Oil Capacity 3.25 qt.


Handlebar Hooked with grab handle, 4.5 in. riser

Deluxe digital - speedometer, tachometer, odometer, fuel, coolant (indicator light) and hours

Oil indicator light

Seating or Rider capacity Mountain

Type - G2 ProClimb

Width - 7 in.

Runner type - Single with carbide

Ski Stance Adjustable - 35.5-37.5 in.
Track Type Power Claw 3.0
Track LxWxH 165 x 15 x 3 in.
Pitch 3.5 in.


Includes 1 in. Mountain height windshield, 12V outlet, goggle holder, hand and thumb warmers, ice scratchers, sport front bumper, lightweight mountain brake disc, vertical steering and tether switch
Safety Features LIghting - LED with accent light



Ski - FOX 1.5 ZERO QS3 coil-over

Front track - FOX 1.5 ZERO QS3 coil-over

Rear track - FOX 1.5 ZERO QSL coil-over

Front Suspension

Arctic Mountain Suspension (AMS)

Travel - 7 in.

Rear Suspension


Travel - 15 in.

2020 Arctic Cat M 8000 Hardcore Alpha One 165 ES