ENGINE
HIGH-PERFORMANCE PISTONS (CONT)
BORE (MM)
BORE OVER
WISECO
REPL.
REPL.
TOP-END
X STROKE
DISPL. SIZE
SIZES
PK KIT
PISTON
REPL. RING CIRCLIPS
WRIST PIN
BEARING
FITS MODEL
(MM)
(CC)
(MM) (MM)
PART #
PART #
SET PART # PART #
PART #
PART #
PW80 thru 06
47
72
47.0
STD
-
649M04700
1850CD
CW12
S538
B1042
BW80 thru 00
x
47.5
0.5
-
649M04750
1869CD
42
48.0
1.0
-
649M04800
1890CD
48.5
1.5
-
649M04850
1909CD
49.0
2.0
-
0910-1225
1929CD
YZ80 76-80
49
79
49.0
STD
-
-
1929CD
CW12
S538
B1042
x
50.0
1.0
-
457M05000
1969CD
42
50.5
1.5
-
-
1988CD
51.0
2.00
-
457M05100
2008CD
49
79
49.0
STD
-
-
1929CD
CW12
S538
0924-0125
x
49.5
0.5
-
-
1949CD
42
50.0
1.0
-
-
1969CD
50.5
1.5
-
-
1988CD
51.0
2.0
-
465M05100
2008CD
YZ80 82-83
47
79
47
STD
-
-
1850CD
CW12
S538
0924-0125
x
47.5
0.5
-
-
1869CD
45.6
47.75
0.75
-
-
-
48.0
1.0
-
477M04800
1890CD
48.5
1.5
-
-
1909CD
49.0
2.0
-
477M04900
1929CD
YZ80 84
48
82
48.0
STD
-
-
1890CS
CW12
S538
B1015
x
48.5
0.5
-
-
1909CS
45.6
49.0
1.0
-
-
1929CS
49.5
1.5
-
-
1949CS
50.0
2.0
-
508M05000
1969CS
YZ80 85-87
48
82
48
STD
-
520M04800
1890CS
CW12
S538
B1015
x
48.5
0.5
-
520M04850
1909CS
45.6
49
1.0
-
520M04900
1929CS
49.5
1.5
-
520M04950
1949CS
50
2.0
-
520M05000
1969CS
YZ80 88-92
48
82
48
STD
-
569M04800
1890CS
CW12
S538
B1015
x
48.5
0.5
-
569M04850
1909CS
45.6
49
1.0
-
569M04900
1929CS
49.5
1.5
-
569M04950
1949CS
50
2.0
-
569M05000
1969CS
YZ80 93-01
47
82
47.0
STD
0903-0711 646M04700
1850CS
CW14
S-517
B1012
x
47.5
0.5
0903-0712 646M04750
1869CS
*Ceramic Composite-Cylinder sleeving or
47.8
48.0
1.0
0903-0713 646M04800
1890CS
replating required for oversizes
49.0
2.0
0903-0715 0910-2868
1929CS
YZ80 93-01
52.5
103.5
52.5
5.5
0903-0213 0910-0366
-
CW14
S-288
B1012
x
47.8
replating required for oversizes
*Crankcase clearance required for 50mm
and larger bore diameter
46
46.0
79.4
STD
-
-
-
CW14
S-517
B1012
Pro-Lite
x
International bore. Not available in the U.S.
47.8
YZ85 02-17
47.5
85
47.5
STD
0903-0299 805M04750
1869CS
CW14
S-517
B1012
x
48.0
.5
0903-0667 0910-1246
1890CS
*Ceramic Composite-Cylinder sleeving or
47.8
48.5
1.00
0903-0528 -
1909CS
replating required for oversizes
49.5
2.00
0903-0194 805M04950
1949CS
YZ85 02-17
52.5
103.5
52.5
5.5
0903-0271 0910-0366
-
CW14
S-288
B1012
Racer’s Choice Supermini
x
CSA Ring is Titanium Nitride coated
47.8
ArmorGlide skirt Coated
*Ceramic Composite-Cylinder sleeving or
replating required for oversizes
*Crankcase clearance required for 50mm
LT100
52
98
52.0
STD
-
235M05200
2047CD
CW14
S-288
B1012
LT100-2
x
52.5
0.5
-
-
2067CD
LT100-3
45.6
53.0
1.0
-
235M05300
2087CD
53.5
1.5
-
-
-
54.0
2.0
-
-
2126CD
RT100 90-00
52
97
52.0
STD
-
0910-0795
2047CD
CW14
S-288
B1012
x
52.5
0.50
-
0910-0796
2067CD
45.6
53.0
1.00
-
0910-0797
2087CD
56
123
56.0
STD
-
236M05600
2205CD
CW16
S-270
B1016
x
56.5
0.5
-
236M05650
2224CD
MX125 74-76
50
57.0
1.0
-
236M05700
2244CD
IT125 80-81
57.5
1.5
-
-
2264CD
DT125 73 and up
58.0
2.0
-
-
2284CD
DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.
SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION.
2017 PARTS UNLIMITED OFFROAD