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Decoding the Grizzly

Yamaha uses the prefix YFM for most of the ATV's followed by the engine size, 2x4 or 4x4 ,model name (Grizzly) rear suspension type (straight axle or IRS), production year and color of fenders.

Using the 2009 Grizzly 350 models we can break down the model number to show what each of the letters in the Model number represent and some common differences.

GRIZZLY 350 2X4 (YFM35GYGR)

YFM = Yamaha ATV

35 = 350cc engine

G = Grizzly

Y = 2009 Production Year

GR = Green

GRIZZLY 350 4X4 (YFM35FGYGR)

YFM = Yamaha ATV

35 = 350cc engine

F = 4 Wheel Drive

G = Grizzly

Y = 2009 Production Year

GR = Green

GRIZZLY 350 IRS 4X4 (YFM35FGIYG)

YFM = Yamaha ATV

35 = 350cc engine

F = 4 Wheel Drive

G = Grizzly

I = Independent Rear Suspension

Y = 2009 Production Year

GR = Green


Front Wheel Bearings and Seals Kit Front Wheel Bearings and Seals Kit YFM350 Grizzly IRS 2007-2011
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Lower Ball Joint Lower Ball Joint Yamaha YFM350 Grizzly IRS 2007-2011 Heavy Duty
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Lower Ball Joint Upper Ball Joint Yamaha YFM350 Grizzly IRS 2007-2011 Heavy Duty
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Front Drive Shaft U-Joint Front Drive Shaft U-Joint Yamaha YFM350 Grizzly IRS 2007-2011 Engine Side
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Boss Bearing 2 Tie Rod Ends Kit Yamaha YFM350 Grizzly IRS 2007 2008 2009 2010 2011 2 Tie Rod Ends Kit Yamaha YFM350 Grizzly IRS 2007 2008 2009 2010 2011
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Boss Bearing | Rear Independent Suspension Bearings Seals Kit YFM350 Grizzly IRS 2007 2008 Rear Independent Suspension Bearings Seals Kit YFM350 Grizzly IRS 2007 2008
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Boss Bearing | Front Brake Master Cylinder Rebuild Kit YFM350 Grizzly IRS 2010 2011 Front Brake Master Cylinder Rebuild Kit YFM350 Grizzly IRS 2010 2011
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Boss Bearing Front Wheel Bearing Kit Yamaha YFM350 Grizzly IRS 4x4 Auto 2007 2008 2009 Front Wheel Bearing Kit Yamaha YFM350 Grizzly IRS 4x4 Auto 2007 2008 2009
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Boss Bearing | Rear Wheel Bearing Kit Yamaha YFM400 Big Bear IRS 4x4 2007 2008 2012 Rear Wheel Bearing Kit Yamaha YFM400 Big Bear IRS 4x4 2007 2008 2012
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Boss Bearing | Front Differential Seals Kit Yamaha YFM350D Grizzly 4x4 2014 Front Differential Seals Kit Yamaha YFM350D Grizzly 4x4 2014
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Winderosa Engine Oil Seal Kit 822253 Yamaha YFM350 Grizzly IRS 2010 2011 Winderosa Engine Oil Seal Kit 822253 Yamaha YFM350 Grizzly IRS 2010 2011
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Yamaha Grizzly Color Chart

B = Black

DU = Ducks Unlimited Edition

G or GR = Green

GY = Gray

H = Hunter

L = Blue

R = Red

SP or SE = Special Edition

W = White

Yamaha Grizzly Common Abbreviations

EPS = Electronic Power Steering

IRS = Independent Rear Suspension

FI = Fuel Injected

4X4 = 4 Wheel Drive

2X4 = 2 Wheel Drive

Use the 10th letter in the VIN to establish the year model of the Yamaha Grizzly

1980 = G

1981 = H

1982 = J

1983 = K

1984 = L

1985 = N

1986 = S

1987 = T

1988 = U

1989 = W

1990 = A

1991 = B

1992 = D

1993 = E

1994 = F

1995 = G

1996 = H

1997 = J

1998 = K

1999 = L

2000 = M

2001 = N

2002 = P

2003 = R

2004 = S

2005 = T

2006 = V

2007 = W

2008 = X

2009 = Y