You are here: Home2012 ATV Models — 2012 Yamaha Grizzly 450 Auto 4×4

2012 Yamaha Grizzly 450 Auto 4×4
Back to 2012 Yamaha ATV Quad Models Index Page

Click photos to enlarge.
They make great desktop images.

2012 Yamaha Grizzly 450 Auto 4x4
2012 Yamaha Grizzly 450 Auto 4×4

2012 Yamaha Grizzly 450 Auto 4x4
2012 Yamaha Grizzly 450 Auto 4×4

2012 Yamaha Grizzly 450 Auto 4x4
2012 Yamaha Grizzly 450 Auto 4×4

2012 Yamaha Grizzly 450 Auto 4x4
2012 Yamaha Grizzly 450 Auto 4×4

– 2012 Yamaha Grizzly 450 Auto 4×4

2012 Yamaha Grizzly 450 Auto 4×4 Review

Grizzlys don’t come any tougher than this…

The Grizzly 450 features the ideal mix of off-road capability, reliability and comfort in a rugged, mid-size package.

Tackles tough terrain and even tougher chores with a host of Yamaha exclusive features including fully automatic Ultramatic transmission, on command 2WD/4WD with diff lock, rear sealed wet brake and more, all in a great handling package.





2012 Yamaha Grizzly 450 Auto 4×4 Highlights:

Key selling points:

Grizzly 450 Automatic 4×4 has many of the same
great features as big brothers Grizzly 700 and 550,
including four-wheel independent suspension, and
it’s powered by a fuel-efficient, liquid-cooled engine.

Almost 20 pounds lighter than previous Grizzly 450
models, providing awesome power-to-weight ratio.

Industry-exclusive, fully automatic Ultramatic®
transmission is the most advanced drive system in
ATVs. An automatic centrifugal clutch maintains
constant belt tension for reduced belt wear and uses
a sprag clutch for all-wheel downhill engine braking
in 4WD mode.

Three-position On-Command® In/Out 4WD feature
lets you switch between 2WD, limited-slip 4WD and
a 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.

Fully independent long-travel four-wheel suspension
features double-wishbone suspension front and rear.

Ground clearance of 10.8 inches and a high-impact
plastic skidplate provide terrainability and
undercarriage protection.

Trick digital instrument panel boasts a
multifunction LCD display with speedometer,
odometer, dual tripmeter, hour meter, 4WD status,
transmission position and clock.

Rear wet brake is a multi-disc system running in
hydraulic fluid inside a sealed unit. This keeps out
the elements (such as mud and water) while
providing powerful, consistent stopping power and
greatly reduced maintenance.


2012 Yamaha Grizzly 450 Auto 4×4 Key Features:

o 421cc liquid-cooled, SOHC four-stroke single is rugged
and powerful.
o Semi-oval slide 33mm BSR Mikuni® carburetor and high-output
DC-CDI ignition deliver fantastic throttle response and engine
performance at all rpm.
o Pushbutton electric starting.
o Stainless steel muffler and header design provides superior
power characteristics, exhaust sound and durability.
o Left-side-mounted (Hi/Lo/N/R/P) shift lever is easily accessible.
o Large-capacity aluminum radiator provides maximum cooling
efficiency and is positioned high in frame for optimal protection.
o Compact engine design features a 45-degree cylinder angle for
maximum ground clearance and lower seat height for quick,
responsive steering and agility.
o Gear-driven crankshaft balancer and rubber-damper engine
mounts reduce vibration.
o Specially designed drive system air intake vent helps prevent
overheating and keeps water and mud from entering drive case.
o Tool-free air filter box for easy access and quick maintenance.

o Lightweight chassis features outstanding durability with superior
rigidity for class-leading agility and handling.
o Light steering and a class-leading turning radius combine for
increased comfort and incredible maneuverability-even in 4WD.
o Fully independent four-wheel suspension features a doublewishbone
suspension front and rear delivering 6.3 inches and 7.1
inches of travel.
o Using a newly-designed multi-disc system running in gear oil,
the sealed rear wet brake combines strong, consistent stopping
power and greatly reduced maintenance requirements.
o Large-diameter ventilated hydraulic front disc brakes deliver
tremendous stopping power in a variety of conditions.
o Direct front shaft drive eliminates U-joint for greater durability
and more efficient power transfer when engaged in 4WD.
o Heavy-duty composite front carry bar and CV joint guards help
prevent damage to boot covers and won’t dent or rust.

Additional Featu res:
o Grizzly 700-inspired front-end styling boasts convenient
water-resistant storage compartment on the front fender.
o The water-resistant DC outlet is located to the side of the
multifunction instrument panel for convenient access;
automotive style receptacle handles a wide range of accessories.
o Steel cargo racks with special, extra-durable wrinkle paint
finish feature a combined cargo capacity of 264 pounds (88 front,
176 rear).
o Available in Realtree® AP™ camouflage with a water-dipped
process for durability.
o Large-capacity, 4-gallon fuel tank has a built-in gauge and
easy-to-reach petcock valve.
o Water-resistant, large-capacity underseat storage box provides
added convenience.
o Wide, fully integrated floorboards keep rider’s feet dry and
feature serrated footpegs for extra grip in wet conditions.
o Large front and rear fenders with inner guards offer excellent
mud/splash protection.
o Easy-access, underseat marine-spec electrical components
ensure maximum protection from the elements.
o Dual, bright multireflector 30-watt Krypton bulb headlights with
high and low beams; rear brake light.
o Assembled in Newnan, GA, U.S.A.

Available Accessories:
Please refer to the 2011 Spring Big Book

* Wet weight includes the vehicle with all standard equipment and all
fluids, including oil, coolant (as applicable) and a full tank of fuel.
It does not include the weight of options or accessories. Wet weight
is useful in making real-world comparisons with other models.
ATVs with engine sizes over 90cc are recommended for use only by riders age
16 years and older.



2012 Yamaha Grizzly 450 Auto 4×4 – USA Specifications
US MSRP* $6,899 (Hunter Green) Available from July, 2011
$6,899 (Steel Blue) Available from July, 2011
$7,249 (Realtree® AP™ Camouflage) Available from July, 2011

Type 421cc, 4-stroke, liquid-cooled single; SOHC
Bore x Stroke 84.5mm x 75.0mm
Compression Ratio 10.0:1
Fuel Delivery Mikuni® 33mm BSR
Ignition DC-CDI
Starting System Electric
Transmission Yamaha Ultramatic® V-belt with all-wheel engine braking/H, L, N, R, P
Drive Train Yamaha On-Command® pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive

Suspension / Front Independent double wishbone; 6.3-in travel
Suspension / Rear Independent double wishbone; 7.1-in travel
Brakes / Front Dual hydraulic discs
Brakes / Rear Sealed oil bathed, multi disc
Tires / Front AT25x8-12
Tires / Rear AT25x10-12

Length 78.5 x 43.0 x 44.1 in
Seat Height 33.1 in
Wheelbase 48.5 in
Turning Radius 118 in
Ground Clearance 10.8 in
Fuel Capacity 4.0 gal
Wet Weight 606 lb
Rack Capacity 88 lb Fr./176 lb Rr.
Towing Capacity 1322 lb

Instrumentation Digital LCD multifunction display: speedometer, odometer, dual tripmeter, hour meter, clock, gear position and fuel gauge
Lighting Dual 30W Krypton multireflector headlights & 21W/5W brakelight
Warranty 6 Month (Limited Factory Warranty)


2012 Yamaha Grizzly 450 Auto 4×4 – Canadian Specifications
Canadian MSRP* $NA CDN

Model not available in Canada

Specifications, appearance, and price of product are subject to change without notice.

* MSRP does not include freight, PDI (Pre Delivery Inspection), pre-rigging (boats), or taxes. Dealer may sell for less.