x
X X
X
X
755
Continued on the next page
Application
Bore X
Stroke
Disp.
(cc)
Sizes
(mm)
Sizes
(Inch)
Piston #
List
Repl. Ring #
Repl. Circlip/
Wrist Pin
Top End
Bearing
YAMAHA - 4 CYCLE
(
cont
’
d
...)
YFM 450 Grizzly 2007-11
84.5 x
421
84.5
STD
4939PS $182.00 8450XX
Circlips
YFM 450 Kodiak 2003-06
426
85
.020
4939P2
182.00 8500XX
CW-20
YFM 450 Wolverine 2006-10
431
85.5
.040
4939P4
182.00 8550XX
Wrist Pin
YXR 450 Rhino 2006-09
S-520
11:1 compression
YFZ450, 2004-05
95 x 62
439
95
STD
4865PS $196.00 3741XS
Circlips
12:1 std. compression
96
.040
4865P4
222.00 9600XS
CW-20
Nikasil Bore - cylinder sleeving or
Wrist Pin
replating required for oversizes.
S-641
YFZ450, 2004-05
95 x 62
439
95
STD
4835PS $222.00 3741XS
Circlips
13.0:1 Hi-Compression
96
.040
4835P4
222.00 9600XS
CW-20
Nikasil Bore - cylinder sleeving or
Wrist Pin
replating required for oversizes.
S-641
YFZ450, 2006-13 (will not fit R models)
95 x 63.4 468
98
.080
4906P8 $250.00 3858XS
Circlips
11.4:1 stock compression
CW-20
Nikasil Bore - cylinder sleeving or
Wrist Pin
replating required for oversizes.
S-641
YFZ450, 2006-13
95 x 63.4 449
95
STD
4865PS $196.00 3741XS
Circlips
YFZ450X, 2011
459
96
.040
4865P4
222.00 9600XS
CW-20
YFZ450R, 2009-15
Wrist Pin
11.4:1 stock compression
S-641
Nikasil Bore - cylinder sleeving or
replating required for oversizes.
YFZ450, 2006-13
95 x 63.4 449
95
STD
4835PS $222.00 3741XS
Circlips
YFZ450X, 2011
96
.040
4835P4
222.00 9600XS
CW-20
YFZ450R, 2009-15
Wrist Pin
12.4:1 High-Compression
S-641
Nikasil Bore - cylinder sleeving or
replating required for oversizes.
YFZ450, 2006-13
95 x 63.4 439
95
STD
4929PS $222.00 9500ZS
Circlips
YFZ450X, 2011
CW-20
YFZ450R, 2009-15
Wrist Pin
14:1 High-Compression Race
S-641
Nikasil Bore - cylinder sleeving or
replating required for oversizes.
YFM550 Grizzly, 2009-13
92 x 84
558
92
STD
40104PS $152.00 9200XX
Circlips
10.25:1 Compression
W5860
Cylinder boring required for
Wrist Pin
oversizes
S-626
YFM600 Grizzly, 1998-01
95 x 84
595
95
STD
4797PS $182.00 3740XH
Circlips
stock compression
96
.040
4797P4
182.00 3780XH
CW-22
Cylinder boring reqd. for
97
.080
4797P8
182.00 3819XH
Wrist Pin
oversizes.
S-550
YFM600 Grizzly, 1998-01
95 x 84
634
98
.120
4607P12 $196.00 3858XH
Circlips
10:1 compression
CW-22
Cylinder boring reqd. for
Wrist Pin
oversizes.
S-550
YFM600 Grizzly, 1998-01
95 x 84
595
95
STD
4596PS $196.00 3740XH
Circlips
11.5:1 compression
96
.040
4596P4
196.00 3780XH
CW-22
Cylinder boring reqd. for
Wrist Pin
oversizes.
S-550
YFM660 Grizzly, 2002-08
100 x 84 660
100
STD
4966PS $182.00 3937XS
Circlips
YFM660 Raptor, 2001-05
666 100.5 .020
4966P2
182.00 10050XS
CW-22
YXR660 Rhino 2005-07
673
101
.040
4966P4
182.00 10100XS
Wrist Pin
9.9:1 compression
686
102
.080
4966P8
202.00 10200XS
S-655
YFM660 Grizzly, 2002-08
100 x 84 660
100
STD
4737PS 202.00 3937XS
Circlips
YFM660 Raptor, 2001-05
100.5 .020
4737P2
202.00 10050XS
CW-22
YXR660 Rhino, 2005-07
101
.040
4737P4
202.00 10100XS
Wrist Pin
11:1 compression
686
102
.080
4811P8
222.00 4014GF
S-655
YFM700 Grizzly, 2007-13
102 x 84 686
102
STD
4902PS 182.00 10200XS
Circlips
YFM700 Raptor, 2006-14
693
103
.040
4902P4
182.00 10300XS
W5860
YXR 700 Rhino, 2008-13
Wrist Pin
9.2:1 compression
S-724
Nikasil bore - cylinder sleeving or replating required for oversizes.
‡
See pages
75
7-759
for ring updates
All kits come with pistons, rings and circlips.
Wrist Pin is included, except when noted.
For replacement ring pricing,
see page 759PISTONS
ENGINE
TIRES
WHEELS
WHEELKITS
TIREACC.
WINCH
PLOW
TOWING /FARM
UTVCAB /ACC.
AUDIO
WINDSHIELDS
ATVBODY
UTVBODY
STORAGE/
TRANSPORT
EXHAUST
BARS /GRIPS
LEVERS
CABLES
ATVCONTROLS
FUEL /
AIRSYSTEMS
AIRFILTERS
OIL FILTERS
LIGHTING
ELECTRICAL
SPARKPLUGS
BATTERIES
CHARGERS
ENGINE
SUSPENSION
DRIVE
CHAIN
SPROCKETS
BRAKES
CHINESE
VEHICLEPARTS
CHEMICALS
TOOLS
LOCKS
TRAILERS
RAMPS /STRAPS
PROMOTIONAL
REFERENCE
INDEX