Arctic Cat 366 SE [2010-2011]: A Rugged Companion for Work and Play

Introduction

The Arctic Cat 366 SE, produced between 2010 and 2011, represents a golden era of no-nonsense utility ATVs designed to tackle both heavy labor and weekend adventures. Built during a time when ATVs were transitioning from purely workhorse machines to multifaceted recreational vehicles, the 366 SE strikes a balance between raw capability and rider comfort. After spending a day testing this metallic black beast across muddy trails, rocky inclines, and open fields, it’s clear why this model remains a favorite among ATV enthusiasts who value durability over frills.

Arctic Cat packed this generation with features that matter: 2/4WD with reverse, electronic brake assist (EBS), and a robust 366cc engine. Whether you’re hauling firewood, plowing snow, or exploring backcountry trails, the 366 SE feels like a trusty partner that won’t let you down—even if it occasionally reminds you it’s from an era before touchscreen dashboards and ride modes.

---

Design & Build Quality

The Arctic Cat 366 SE’s design screams utilitarian purpose. Its angular bodywork, finished in metallic black (the only color option), hides a steel frame built to withstand abuse. At 2057 mm (81 inches) long and 258.5 kg (570 lbs) dry weight, it’s neither the largest nor the heaviest in its class, but it carries a reassuring heft. The 254 mm (10 inches) of ground clearance allows it to crawl over fallen logs and rocks without hesitation, while the compact 1270 mm (50-inch) wheelbase provides surprising agility in tight spaces.

The 2011 model introduced a factory windshield—a small but impactful addition that reduces fatigue during long rides in harsh weather. Both model years feature generous cargo capacities: the front rack holds 34 kg (75 lbs), while the rear rack supports 68 kg (150 lbs). Towing capacity is an impressive 476 kg (1,050 lbs), making it ideal for hauling trailers or small equipment. The digital instrument cluster is basic but legible, prioritizing function over flair.

---

Performance: Where the 366cc Heart Shines

Powering the 366 SE is a carbureted 366cc single-cylinder four-stroke engine—a configuration that’s simple, reliable, and easy to maintain. With 89.0 x 71.2 mm (3.5 x 2.8 in) bore and stroke, this SOHC mill delivers torque where it counts: low to mid-range. Acceleration isn’t blistering, but the automatic CVT transmission ensures smooth power delivery, whether you’re creeping through a muddy ditch or opening the throttle on a dirt road.

The engine’s oil-and-air cooling system handles moderate workloads well, though extended high-RPM runs in hot climates can cause noticeable heat soak. Fuel economy averages 15-18 km/l (35-42 mpg), and the 16.3L (4.3-gallon) tank provides decent range for full-day adventures. Where this engine truly excels is in its growling personality—the throaty exhaust note and vibration-heavy feedback make you feel connected to the machine in a way modern fuel-injected ATVs often mute.

---

Handling & Terrain Capability

Arctic Cat equipped the 366 SE with double A-Arm suspension front and rear, offering 178 mm (7 inches) of wheel travel. While this setup lacks the adjustability of higher-end models, it absorbs trail chatter competently and remains stable during aggressive cornering. The fully independent front suspension on the 2011 model adds subtle refinements to ride quality, especially when traversing uneven terrain with a loaded rear rack.

The 24-inch tires (24/8-12 front, 24/10-12 rear) strike a perfect balance between traction and comfort. They bite into loose soil and snow without excessive slippage, and the squared-off tread pattern doesn’t wander on paved surfaces. Hydraulic disc brakes on both axles provide confident stopping power, aided by the EBS system that redistributes braking force during 2WD/4WD transitions. Switching between drive modes is intuitive, and the inclusion of high/low range gearing expands its versatility from steep hill climbs to precision trailer maneuvering.

---

Competition

In the early 2010s utility ATV segment, the 366 SE faced stiff competition:

1. Honda FourTrax Rancher 420: Honda’s legendary reliability and available fuel injection gave it an edge in cold starts, but the 366 SE countered with superior towing capacity and a smoother CVT.
2. Yamaha Grizzly 450: More refined and tech-heavy, the Grizzly offered better suspension but couldn’t match the Arctic Cat’s brute-force low-end torque.
3. Polaris Sportsman 500: Though more powerful, the Polaris was pricier and had a reputation for complex maintenance compared to the 366 SE’s straightforward mechanics.

Where the Arctic Cat stood out was in its unapologetic focus on core utility features. While rivals chased plush seats and digital displays, the 366 SE doubled down on durability—a trait that’s kept many units running strong over a decade later.

---

Maintenance: Keeping the Beast Alive

The 366 SE’s simplicity is a DIY enthusiast’s dream. Key maintenance considerations:

• Oil Changes: The oil-and-air-cooled engine requires frequent oil checks (every 20 operating hours) and changes every 100 hours. Use 10W-40 synthetic blend for optimal performance.
• Carburetor Care: The Keihin carburetor demands seasonal cleaning, especially if ethanol-blended fuel is used. Consider upgrading to a stainless steel fuel filter from MOTOPARTS.store.
• Belt Longevity: The CVT drive belt lasts ~3,000 km (1,864 miles) under normal use. Inspect for cracks monthly and keep spare belts on hand for backcountry trips.
• Suspension Upkeep: Grease the A-Arm bushings every 50 hours to prevent squeaks and premature wear.

For owners looking to enhance their 366 SE, MOTOPARTS.store recommends:
- High-capacity air filters for dusty environments
- Heavy-duty skid plates for rock-crawling protection
- LED light bars to improve nighttime visibility

---

Final Thoughts

The Arctic Cat 366 SE isn’t just an ATV—it’s a testament to an era when machines were built to last. Its combination of raw capability, mechanical simplicity, and thoughtful features (like the 2011’s windshield) make it a compelling choice for riders who value substance over style. While it won’t coddle you with modern luxuries, it’ll outwork many newer models while costing less to maintain.

Whether you’re restoring a well-loved 366 SE or upgrading a daily rider, MOTOPARTS.store has the parts and expertise to keep your Arctic Cat conquering trails for another decade. From heavy-duty drive belts to ergonomic seat covers, we’ve got your back—because legends deserve to stay on the job.

---

Specifications sheet

---