With a semi-automatic transmission, On-Command with Diff Lock, ITP Mud Lites and a sealed wet brake, this Bear was built for serious work on serious terrain.

When you've got a job to do, regardless of the conditions, you can't afford compromise. The Big Bear 400 is a no-compromise purpose built ATV.

The Big Bear is powered by a 386cc, 4-Stroke Single, Air/Oil Cooled with fan assist, and is one of Yamaha's most reliable ATV engines.

Maximum torque occurs at a low 5,500 rpm for heavy duty use.

5-speed semi-automatic with reverse, designed for extreme conditions where water and mud can't be avoided.

Push-button servo-controlled "On-Command" system allows you to switch between 2WD and limited-slip 4WD with the simple push of a dash mounted button. Real 4-wheel drive when you need it. This puts you in total control... you decide when you need 4 wheel drive... the machine doesn't decide for you.

Independent Rear Suspension (IRS) for improved ground clearance and ride comfort.

Dual 30-watt Krypton multi-reflector sealed headlights with replaceable bulbs provide excellent lighting, prevents water penetration, and simplifies maintenance and reduces cost.

Steel reinforced plastic floorboards with raised integrated serrated foot pegs and extra-wide evacuation holes for excellent traction regardless of conditions.

25-inch ITP Mud Lites with more aggressive tire tread pattern for greater traction in extreme conditions

Improve mud and splash protection.

• Lower front bumper plastic skid plates. 45 degree attack angle allows unit to slide over taller obstacles without getting hung-up. Plastic design resists dents and corrosion.
   
• Rear sway bar added for limited chassis roll and greater terrainability.
   
• Spin-on oil filter simplifies oil changes.
   
• Plastic under frame skid plate helps protect frame from damage and allows units to slide over rocks and logs.
   
• 25-inch ITP Mud Lites with more aggressive tire tread patter for greater traction
   
• Sealed marine-style electrical connectors.
   
• Large-capacity racks, front and rear with crinkle coat paint process for superior corrosion resistance.
   
• Electric starting with recoil backup (electric starter will work in any gear)
   
• Reusable foam air filter for easy maintenance and maximum power.
   
• Limited slip front differential. The front differential is centrally located with equal-length driveshafts to each weel, providing four-wheel drive performance with easy steering.
   
• Deeply padded wide seat and specially designed low-effort steering for long day comfort.

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