834 / 1462
TIRES
WHEELS
WHEELKITS
TIREACC.
WINCH
PLOW
TOWING /FARM
UTVCAB /ACC.
WINDSHIELDS
ATVBODY
UTVBODY
STORAGE/
TRANSPORT
EXHAUST
BARS /GRIPS
LEVERS
CABLES
ATVCONTROLS
UTVCONTROLS
FUEL /AIRSYSTEMS
AIRFILTERS
OILFILTERS
LIGHTING
ELECTRICAL
SPARKPLUGS
BATTERIES
CHARGERS
ENGINE
SUSPENSION
DRIVE
CHAIN
SPROCKETS
BRAKES
CHEMICALS
TOOLS
LOCKS
TRAILERS
RAMPS /STRAPS
PROMOTIONAL
REFERENCE
INDEX
834
‡
See pages
837-839
for ring updates
**
This size is limited to available stock
All kits come with pistons, rings and circlips.
Wrist Pin is included, except when noted.
For replacement ring pricing,
see page 839
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
...)
YFM125 Raptor, 2011-12
54 x 54 54 54 STD
40068PS
137.95 2126XE
Circlips
10.25:1 compression
54.5 .020
40068P2
137.95 2146XE
CW-15
ArmorGlide skirt coat
55 .040
40068P4
137.95 2165XE
Wrist Pin
S-571
YFM125 Raptor, 2011-12
54 x 54 54 54 STD
40071PS $151.95 2126XE
Circlips
13:1 Compression
54.5 .020
40071P2
151.95 2146XE
CW-15
ArmorGlide skirt coated
55 .040
40071P4
151.95 2165XE
Wrist Pin
S-571
YFM,YTM 200L EL, EK, ER
67 x 55.7 196 67 STD
4292PS
$137.95 2638XC/XA‡
Circlips
1984-85YFM, DXT
67.5 .020
4292P2
137.95 2658XC/XA‡
CW-16
1987-88 Moto-4 1987-88
68 .040
4292P4
137.95 2677XA‡
Wrist Pin
10.25:1 compression
S-256
YTM,YFM 225 DXK, DRS, DXL
70 x 58 223 70 STD
4312PS
$151.95 2756XC/XA‡‡
Circlips
YPM 1984-88 Moto-4 1987-88
70.5 .020
4312P2
151.95 2776XC/XA‡
CW-16
10.25:1 compression
71 .040
4312P4
151.95 2795XC/XA‡
Wrist Pin
Cylinder boring reqd. for oversizes.
S-259
YFM 250Timber Wolf 1990-00
71 x 58 230 71 STD
4675PS
$151.95 2795XC
Circlips
YFB 250 BearTracker 2000-04
71.5 .020
4675P2
151.95 2815XC
CW-16
8.7:1 compression
72 .040
4675P4
151.95 2835XC
Wrist Pin
Cylinder boring reqd. for oversizes.
S-596
YFM 250 Bruin ‘05-06
71 x 58 230 71 STD
4675PS
$151.95 2795XC
Circlips
YFM 250 Big Bear ‘07-09
71.5 .020
4675P2
151.95 2815XC
CW-16
8.7:1 compression
72 .040
4675P4
151.95 2835XC
Wrist Pin
Cylinder boring reqd. for oversizes.
S-596
YFM250 Raptor, 2008-13
74 x 58 249 74 STD
4951PS
$181.95 2913XA
Circlips
Raptor SE, Raptor Custom
CW-17
10.5:1Compression
Wrist Pin
ArmorGlide skirt coated
S-688
YFM250 Raptor, 2008-13
74 x 58 249 74 STD
40078PS $181.95 2913XA
Circlips
Raptor SE, Raptor Custom
76 .080
40078P8
181.95 2992XG
CW-17
13:1Compression
Wrist Pin
ArmorGlide skirt coated
S-688
YFM250R/X Raptor, 2008-13
74 x 58 300 81 .280
4958PS
$181.95 3189XG
Circlips
300cc Race Only
CW-17
11:1 High compression
Wrist Pin
ArmorGlide skirt coated
S-688
Big Bore sleeve required
YFM 350 XT Warrior, ‘87-04
83 x 64.5 349 83 STD
4419PS
$151.95 3268XC/XG‡
Circlips
Grizzly 350, ‘07-14
83.5 .020
4419P2
151.95 3287XC
CW-19
Raptor 350, 2005-13
84 .040
4419P4
151.95 3307XC
Wrist Pin
Big Bear 350, Moto-4, thru 1999
S-376
ArmorGlide skirt coated
10.25:1 compression
YFM 350 XT Warrior, ‘87-04
83 x 64.5 349 83 STD
40109PS $181.95 3268XC/XG‡
Circlips
Grizzly 350, ‘07-14
83.5 .020
40109P2
181.95 3287XC
CW-19
Raptor 350, 2005-13
84 .040
40109P4
181.95 3307XC
Wrist Pin
Big Bear 350, Moto-4, thru 1999
S-376
ArmorGlide skirt coated
11:1 Compression
Kodiak 400, 1993-99
83 x 71.5 386 83 STD
4676PS
$151.95 3268XC
Circlips
Big Bear 2000-08
83.5 .020
4676P2
151.95 3287XC
CW-19
8.6:1 compression
84 .040
4676P4
151.95 3307XC
Wrist Pin
Cylinder boring reqd. for oversizes.
S-376
Kodiak 400. ‘00-08
84.5 x 71.5
84.5 STD
40076PS $151.95 8450XX
Circlips
10.5:1 Stock Compression
85 .020
40076P2
151.95 8500XX
CW-20
ArmorGlide skirt coated
85.5 .040
40076P4
151.95 8550XX
Wrist Pin
Cylinder boring required for oversizes
S-520
YFM 450 Grizzly 2007-11
84.5 x
421 84.5 STD
4939PS
$181.95 8450XX
Circlips
YFM 450 Kodiak 2003-06
426 85 .020
4939P2
181.95 8500XX
CW-20
YFM 450 Wolverine 2006-10
431 85.5 .040
4939P4
181.95 8550XX
Wrist Pin
YXR 450 Rhino 2006-09
S-520
11:1 compression
YFZ450, 2004-05
95 x 62 439 95 STD
4865PS
$195.95 3741XS
Circlips
12:1 std. compression
96 .040
4865P4
221.95 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
$221.95 3741XS
Circlips
13.0:1 Hi-Compression
96 .040
4835P4
221.95 9600XS
CW-20
Nikasil Bore - cylinder sleeving or
Wrist Pin
replating required for oversizes.
S-641
Continued on the next page
ENGINE