Compare Models

2025 Suzuki KingQuad 400FSi
2025 Suzuki KingQuad 400FSi

Specs

General Information

Manufacturer
Suzuki
Suzuki
Model Year
2025
2025
Model
KingQuad 400FSi
KingQuad 400FSi
Model Code
LT-F400FM5
LT-F400FM5
Color
Terra Green
Terra Green

Brakes/Wheels/Tires

Brakes

Front - Disc, twin rotors

Rear - Single drum

Front - Disc, twin rotors

Rear - Single drum

Tires

Front - AT25 x 8-12, tubeless type x 2

Rear - AT25 x 10-12, tubeless type x 2

Front - AT25 x 8-12, tubeless type x 2

Rear - AT25 x 10-12, tubeless type x 2

Dimensions

Length
Overall - 81.1 in. (2,060 mm)
Overall - 81.1 in. (2,060 mm)
Height
Overall - 48.0 in. (1,220 mm)
Overall - 48.0 in. (1,220 mm)
Width
Overall - 45.1 in. (1,145 mm)
Overall - 45.1 in. (1,145 mm)
Weight
Curb - 615 lb. (279 kg)
Curb - 615 lb. (279 kg)
Ground Clearance
9.8 in. (250 mm)
9.8 in. (250 mm)
Wheelbase
50.0 in. (1,270 mm)
50.0 in. (1,270 mm)
Seat Height
33.1 in. (840 mm)
33.1 in. (840 mm)

Drivetrain

Transmission
5-speed forward constant mesh, with high / low range and reverse
5-speed forward constant mesh, with high / low range and reverse
Drive

Driven wheels - 2WD and 4WD

Final - Shaft

Driven wheels - 2WD and 4WD

Final - Shaft

Electrical

Lighting

Headlight - 12V 35 / 35W (HS1) x 2

Tail light - 12V 21 / 5W

Headlight - 12V 35 / 35W (HS1) x 2

Tail light - 12V 21 / 5W

Engine

Engine
4-stroke, OHC
4-stroke, OHC
Cooling
Air with SCAS,
Air with SCAS,
Cylinders
Single
Single
Displacement
376 cc (22.94 ci)
376 cc (22.94 ci)
Bore x Stroke
3.228 in. x 2.803 in. (82.0 x 71.2 mm)
3.228 in. x 2.803 in. (82.0 x 71.2 mm)
Compression Ratio
9.0:1
9.0:1
Clutch
Dry shoe, automatic, centrifugal type
Dry shoe, automatic, centrifugal type
Fuel System
Suzuki electronic fuel injection
Suzuki electronic fuel injection
Ignition
Electronic (transistorized)
Electronic (transistorized)
Starting
Electric
Electric
Lubrication
Wet sump
Wet sump
Fuel Capacity
4.2 US gal. (16.0 l)
4.2 US gal. (16.0 l)

Operational

Suspension

Front - Independent, double wishbone, coil spring, oil damped

Rear - Swingarm type, coil spring, oil damped

Front - Independent, double wishbone, coil spring, oil damped

Rear - Swingarm type, coil spring, oil damped

Other

Warranty
24-month limited
24-month limited

Features

Body & Styling Features

  • Sporty Terra Green bodywork features sharply angled, high-clearance fenders while the full steel cargo racks help tackle any ranch or outdoors task.
  • Suzuki's exclusive T-shaped seat delivers rider mobility during sport riding or tackling difficult terrain. It is also plush for extended riding comfort.
  • Lightweight and durable plastic skid plates are sturdy to withstand trail pounding, yet slippery to help obstacles slide under easily.
  • Heavy-duty front and rear cargo racks let the rider take advantage of the ATV’s superb load capabilities. Wrinkle paint finishes on the racks and front bumper are durable and scratch resistant.

Chassis Features

  • Independent front A-arm suspension offers smooth performance and remarkable ground clearance with 6.7 inches (170.1 mm) of wheel travel.
  • A swingarm rear suspension with 6.7 inches (170.1 mm) of wheel travel and twin shock absorbers provide agile handling and plush riding.
  • Dual front hydraulic disc brakes feature calipers with large, 34mm pistons and wide brake-pad surface areas for ample stopping power while providing outstanding durability.
  • Large, 25-inch Carlisle® tires with aggressive treads offer consistent traction in wet conditions, yet make for a quiet, smooth ride on hard-packed trails.

Electrical Features

  • LCD instrumentation includes speedometer, odometer, trip meter, hour meter, clock, fuel gauge, and indicators for reverse, neutral, oil and FI (fuel injection).
  • Dual 35-watt headlights (with high- and low-beam settings) are part of the distinctive KingQuad grille appearance. A bright taillight helps make the ATV visible in dark conditions.
  • Automotive-style DC power outlet is included on the front fender.
  • Winch-ready mounts and wire conduit make winch installation simple.

Engine Features

  • The KingQuad 400FSi’s fuel-injected, 376cc, four-stroke, four-valve engine produces efficient power and drivability.
  • Suzuki's class-leading fuel injection smooths power output, especially in the mid- to high- range, and provides excellent cold starting. The system uses 3-D maps for optimum ignition, creating responsive yet environmentally compliant performance.
  • Suzuki Advanced Cooling System (SACS) uses an oil cooler and thermostat-controlled cooling fan to shed engine heat during hard work or cargo hauling.
  • The Engine Control Unit (ECU) has slip control logic, which adjusts fuel injector duration and timing to improve rideability and grip in loose/slippery conditions.

Other Features

  • A variety of Genuine Suzuki Accessories are available, including winches, windshield, front and rear bumpers, snowplow, aluminum skid pans, rack extensions, utility box, and more.
  • Minimum rider age: 16 years old
  • Suzuki’s 24-month limited warranty is much longer than other ATV warranties. Longer coverage and other benefits are available through Suzuki Extended Protection (SEP).

Transmission Features

  • Five-speed transmission with semi-automatic clutch with reverse allows the rider to select the ideal gear for maximum traction and fuel efficiency.
  • Select 2WD or 4WD with the flip of a handlebar-mounted lever. The shaft drive system is dependable and durable and is virtually maintenance-free.
  • Torque-sensing limited-slip front differential provides maximum traction and light steering when in 4WD mode.
  • High / low selectable sub-transmission provides wide-ranging versatility.

Body & Styling Features

  • Sporty Terra Green bodywork features sharply angled, high-clearance fenders while the full steel cargo racks help tackle any ranch or outdoors task.
  • Suzuki's exclusive T-shaped seat delivers rider mobility during sport riding or tackling difficult terrain. It is also plush for extended riding comfort.
  • Lightweight and durable plastic skid plates are sturdy to withstand trail pounding, yet slippery to help obstacles slide under easily.
  • Heavy-duty front and rear cargo racks let the rider take advantage of the ATV’s superb load capabilities. Wrinkle paint finishes on the racks and front bumper are durable and scratch resistant.

Chassis Features

  • Independent front A-arm suspension offers smooth performance and remarkable ground clearance with 6.7 inches (170.1 mm) of wheel travel.
  • A swingarm rear suspension with 6.7 inches (170.1 mm) of wheel travel and twin shock absorbers provide agile handling and plush riding.
  • Dual front hydraulic disc brakes feature calipers with large, 34mm pistons and wide brake-pad surface areas for ample stopping power while providing outstanding durability.
  • Large, 25-inch Carlisle® tires with aggressive treads offer consistent traction in wet conditions, yet make for a quiet, smooth ride on hard-packed trails.

Electrical Features

  • LCD instrumentation includes speedometer, odometer, trip meter, hour meter, clock, fuel gauge, and indicators for reverse, neutral, oil and FI (fuel injection).
  • Dual 35-watt headlights (with high- and low-beam settings) are part of the distinctive KingQuad grille appearance. A bright taillight helps make the ATV visible in dark conditions.
  • Automotive-style DC power outlet is included on the front fender.
  • Winch-ready mounts and wire conduit make winch installation simple.

Engine Features

  • The KingQuad 400FSi’s fuel-injected, 376cc, four-stroke, four-valve engine produces efficient power and drivability.
  • Suzuki's class-leading fuel injection smooths power output, especially in the mid- to high- range, and provides excellent cold starting. The system uses 3-D maps for optimum ignition, creating responsive yet environmentally compliant performance.
  • Suzuki Advanced Cooling System (SACS) uses an oil cooler and thermostat-controlled cooling fan to shed engine heat during hard work or cargo hauling.
  • The Engine Control Unit (ECU) has slip control logic, which adjusts fuel injector duration and timing to improve rideability and grip in loose/slippery conditions.

Other Features

  • A variety of Genuine Suzuki Accessories are available, including winches, windshield, front and rear bumpers, snowplow, aluminum skid pans, rack extensions, utility box, and more.
  • Minimum rider age: 16 years old
  • Suzuki’s 24-month limited warranty is much longer than other ATV warranties. Longer coverage and other benefits are available through Suzuki Extended Protection (SEP).

Transmission Features

  • Five-speed transmission with semi-automatic clutch with reverse allows the rider to select the ideal gear for maximum traction and fuel efficiency.
  • Select 2WD or 4WD with the flip of a handlebar-mounted lever. The shaft drive system is dependable and durable and is virtually maintenance-free.
  • Torque-sensing limited-slip front differential provides maximum traction and light steering when in 4WD mode.
  • High / low selectable sub-transmission provides wide-ranging versatility.