Inventory Unit Detail

2007 Yamaha GRIZZLY 450 4WD SPEC


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Gain your four-wheel independence. Hard-working, smooth-riding four wheel independent suspension, the exclusive Ultramatic transmission, and On-Command drive selection means you are virtually unstoppable.

Key Features
  • Grizzly 450 Automatic 4x4 has all the same great features as big brothers Grizzly 660/700, including four-wheel independent suspension, and it's powered by a fuel-efficient liquid-cooled engine.
  • Industry-exclusive, fully automatic Ultramatic® transmission is the most advanced drive system in ATVing. An automatic centrifugal clutch maintains constant belt tension for reduced belt wear and class-exclusive all-wheel downhill engine braking.
  • Industry-exclusive three-position On-Command® In/Out 4WD feature lets you switch between 2WD, limited-slip 4WD and class-exclusive fully locked differential 4WD—all with the simple push of a button. Override button allows engine to make maximum RPM in full Diff-Lock mode.
  • Class-exclusive fully independent long-travel four-wheel suspension features double-wishbone suspension front and rear with five-way preload adjustable shocks for maximum control and comfort over rough terrain.
  • 10.8 inches of ground clearance and high-impact plastic skid plate improve maneuverability and undercarriage protection.
  • Trick digital instrument panel boasts a multifunction LCD display with speedometer, odometer, dual tripmeters, hour meter, 4WD status, transmission position and clock.
New for 2007
  • New tires with an aggressive tread pattern boost traction and handling.
  • 421cc liquid-cooled, SOHC four-stroke single is rugged and powerful.
  • Semi-oval slide 33mm BSR Mikuni carburetor and high-output DC-CDI ignition deliver fantastic throttle response and engine performance at all RPM.
  • Pushbutton electric starting backed up by auxiliary recoil starter.
  • Stainless steel muffler and header design provides superior power characteristics, exhaust sound and durability.
  • Left side–mounted (Hi/Lo/N/R/P) shift lever keeps throttle hand free while shifting.
  • Large-capacity aluminum radiator provides maximum cooling efficiency and is positioned high in frame for optimal protection.
  • Compact engine design features a 45-degree cylinder angle for maximum ground clearance and lower seat height for quick, responsive steering and agility.
  • Gear-driven crankshaft balancer and rubber-damper engine mounts reduce vibration.
  • Fully sealed drive case keeps out water and debris to minimize belt slippage.
  • Hand-operated side cover drain keeps belt dry and free from mud and debris.
  • Specially designed drive system air intake vent prevents overheating and keeps water and mud from entering drive case.
  • Easy-access, tool-free air filter box.
  • Lightweight chassis features outstanding durability with superior rigidity for class-leading agility and handling.
  • Light steering and a class-leading turning radius combine for increased comfort and incredible maneuverability—even in 4WD.
  • Fully independent four-wheel suspension features a doublewishbone suspension front and rear delivering 6.3 inches and 7.1 inches of travel, respectively, with five-way preload-adjustable shocks to ensure maximum tire contact—and comfort.
  • Large-diameter ventilated hydraulic front and solid rear disc brakes deliver tremendous stopping power in a variety of conditions.
  • Direct front shaft drive eliminates U-joint for greater durability and more efficient power transfer when engaged in 4WD.
  • Low seat height creates enhanced handling.
  • Heavy-duty composite front carry bar and CV joint guards help prevent damage to boot covers and won't dent or rust.
Additional Features
  • Steel cargo racks with special, extra-durable wrinkle paint finish feature a combined cargo capacity of 264 pounds (88 front, 176 rear).
  • Standard center-mounted trailer hitch can hook up over 1100 pounds of payload.
  • Large-capacity, 4-gallon fuel tank has a built-in gauge and easy-to-reach petcock valve.
  • Recessed, water-resistant, automotive-type DC power outlet handles wide range of accessories.
  • Water-resistant, large-capacity underseat storage box provides added convenience.
  • Plush, specially designed seat is wide and contoured for incomparable rider comfort.
  • Wide, fully integrated floorboards keep rider's feet dry and feature serrated footpegs for extra grip in wet conditions.
  • Large front and rear fenders with inner guards offer excellent mud/splash protection.
  • Easy-access, underseat marine-spec electrical components ensure maximum protection from the elements.
  • Dual, bright multireflector 30-watt Krypton bulb headlights with high and low beams; rear brake light.
  • Built in Newnan, GA, USA.
Engine Specifications
  • Type: 421cc liquid-cooled w/fan, SOHC 4-stroke single
  • Bore x Stroke: 84.5mm x 75mm
  • Compression Ratio: 10:1
  • Carburetion: Mikuni 33mm BSR
  • Ignition: DC-CDI
  • Starting System: Electric w/auxiliary pull
  • Transmission: Yamaha Ultramatic® V-belt/H, L, N, R, P
  • Engine Braking: All wheel
  • Drive Train: Yamaha On-Command® push button 3-way locking differential, 2WD, 4WD, locked 4WD; shaft
Chassis Specification
  • Suspension/Front: Independent double wishbone, 6.3" travel w/5-way preload adjustment
  • Suspension/Rear: Independent double wishbone, 7.1" travel w/5-way preload adjustment
  • Brakes/Front: Dual hydraulic discs
  • Brakes/Rear: Hydraulic disc
  • Tires/Front: AT25x8-12
  • Tires/Rear: AT25x10-12
  • Length: 78.5" x 43.0" x 44.1"
  • Seat Height: 32.7"
  • Wheelbase: 48.5"
  • Turning Radius: 118"
  • Ground Clearance: 10.8"
  • Fuel Capacity: 4.0 gal.
  • Dry Weight: 591 lb.
  • Rack Capacity: 88 lb. front/176 lb. rear
  • Towing Capacity: 1102 lb.
  • Instrumentation: Digital LCD multifunction display, speedo, odo, dual trip, hour meter, clock, gear position & fuel gauge
  • Lighting: Dual 30W Krypton multireflector headlights & 21/5W brake light



Engine Type
SOHC 4-stroke single
Bore x Stroke
84.5mm x 75mm
Engine Cooling
liquid-cooled w/fan
Fuel System
Mikuni 33mm BSR
Starting System
Electric w/auxiliary pull


Front Suspension
Independent double wishbone
Front Travel
6.3" travel w/5-way preload adjustment
Front Brake Type
Dual hydraulic discs
Front Tires
AT25 x 8-12
Rear Travel
7.1" travel w/5-way preload adjustment
Rear Suspension
Independent double wishbone
Rear Brake Type
Hydraulic disc
Rear Tires
AT25 x 10-12


Dry Weight
591 lb.
Front Rack Capacity
88 lbs.
Rear Rack Capacity
176 lbs.
Towing Capacity
1102 lbs.
Fuel Capacity
4.0 gal.
Ground Clearance
10.8 in.
Machine Dimensions (LxWxH)
78.5" x 43.0" x 44.1"
48.5 in.

Drive Train

Drive Train
Yamaha On-Command® push button 3-way locking differential, 2WD, 4WD, locked 4WD; shaft
Yamaha Ultramatic® V-belt/H, L, N, R, P


Standard: Digital LCD multifunction display
Standard: Digital LCD multifunction display
Dual 30W Krypton multireflector headlights & 21/5W brake light
Hunter Green, Steel Blue, Red, and Hardwoods HD Camo
6-month Limited Factory Warranty