ENGINE
HIGH-PERFORMANCE PISTONS (CONT)
OVER
REPL.
BORE (MM)
DISPL. BORE
SIZES PK KIT
PISTON
REPL. RING CIRCLIPS
REPL. WRIST
TOP-END
FITS MODEL
X STROKE (MM) (CC)
SIZE (MM) (MM) PART #
PART #
SET PART # PART #
PIN PART #
BEARING PART #
AT2 125 72-73/ AT3 125 72-73
56
123
56.0
STD
-
236M05600 2205CD
CW16
S-270
B1016
MX125 74-76
x
56.5
0.5
-
236M05650 2224CD
-
-
-
IT125 80-81
50
57.0
1.0
-
236M05700 2244CD
-
-
-
58.0
2.0
-
-
2284CD
-
-
-
56
123
56.0
STD
-
435M05600 2205CS
CW16
S-270
B1016
x
56.25
0.25
-
-
2215CS
-
-
-
50
56.5
0.5
-
-
2224CS
-
-
-
56.75
0.75
-
-
2234CS
-
-
-
57.0
1.0
-
435M05700 2244CS
-
-
-
57.5
1.5
-
-
2264CS
-
-
-
58.0
2.0
-
435M05800 2284CS
-
-
-
YZ125 86-88
56
123
56.0
STD
-
559M05600 2205CS
CW16
S-514
B1016
Pro-Lite
x
56.25
0.25
-
-
2215CS
-
-
-
*Power Valve must be modified
50
56.5
0.5
-
559M05650 2224CS
-
-
-
56.75
0.75
-
-
2234CS
-
-
-
57.0
1.0
-
559M05700 2244CS
-
-
-
57.5
1.5
-
559M05750 2264CS
-
-
-
58.0
2.0
-
-
2284CS
-
-
-
YZ125 89
56
123
56.0
STD
-
582M05600 2205CS
CW16
S-270
B1016
Pro-Lite
x
56.5
0.5
-
-
2224CS
-
-
-
*Ceramic Composite-Cylinder sleeving or 50
56.75
0.75
-
-
2234CS
-
-
-
57.0
1.0
-
582M05700 2244CS
-
-
-
56
124
56.0
STD
-
0910-1681
2205CS
CW16
S-514
B1016
Pro-Lite
x
57
1.0
-
0910-2867
2244CS
-
-
-
*Ceramic Composite-Cylinder sleeving or 50.7
-
-
-
-
-
-
replating required for oversizes
-
-
-
-
-
-
56
124
56.0
STD
-
629M05600 2205CS
CW16
S-514
B1016
Pro-Lite
x
56.5
0.5
-
-
2224CS
-
-
-
*Ceramic Composite-Cylinder sleeving or 50.7
57.0
1.0
-
629M05700 2244CS
-
-
-
replating required for oversizes
-
-
-
-
-
-
54
124
54.0
STD
-
647M05400 2126CS
CW16
S-514
B1016
Pro-Lite
x
54.5
0.5
-
647M05450 2146CS
-
-
-
*Ceramic Composite-Cylinder sleeving or 54.5
55.0
1.0
-
647M05500 2165CS
-
-
-
replating required for oversizes
56.0
2.0
-
0910-1224
2205CS
-
-
-
YZ125 97
54
124
54.0
STD
-
693M05400 2126CS
CW15
S-467
B1038
x
-
-
-
-
-
-
*Ceramic Composite-Cylinder sleeving or 54.5
-
-
-
-
-
-
replating required for oversizes
-
-
-
-
-
-
YZ125 97-04
54
125
54.0
STD
-
0910-0729
2126CS
CW15
-
-
x
134
56.0
2.0
-
0910-0730
2205CS
-
-
-
54.5
-
-
-
-
-
-
intake window. Flat Top Conversion
-
-
-
-
-
-
Electra Coated
-
-
-
-
-
-
YZ125 98-00
54
124
54.0
STD
0903-0309 726M05400 2126CST
CW15
S-467
B1038
x
54.5
0.5
0903-0291 726M05450 2146CS
-
-
-
*Ceramic Composite-Cylinder sleeving or 54.5
55.0
1.0
0903-0266 726M05500 2165CS
-
-
-
replating required for oversizes
56.0
2.0
0903-0215 726M05600 2205CS
-
-
-
YZ125 01
54
124
54.0
STD
0903-0288 726M05400 2126CST
CW15
S-467
B1001
Pro-Lite
x
54.5
0.5
0903-0268 726M05450 2146CS
-
-
-
55.0
1.0
0903-0228 726M05500 2165CS
-
-
-
replating required for oversizes
56.0
2.0
0903-0176 726M05600 2205CS
-
-
-
YZ125 02
54
125
54.0
STD
0903-0297 797M05400 2126CST
CW15
S-467
B1001
x
54.5
0.50
0903-0541 0910-1240
2146CS
-
-
-
Pro-Lite
54.5
55.0
1.0
-
0910-1241
2165CS
-
-
-
56.0
2.0
0903-0207 797M05600 2205CS
-
-
-
YZ125 03-04
54
125
54.0
STD
0903-0283 797M05400 2126CST
CW15
S-467
B1001
Pro-Lite
x
54.5
0.5
0903-0672 0910-1240
2146CS
-
-
-
54.5
55.0
1.0
-
0910-1241
2165CS
-
-
-
56.0
2.0
0903-0250 797M05600 2205CS
-
-
-
YZ125 97-04
54
125
54.0
STD
-
765M05400 2126CS
CW15
-
B1038 8
GP Style – Electra Coated
x
134
56.0
2.0
-
765M05600 2205CS
-
-
B1001 9
54.5
-
-
-
-
-
-
-
-
-
-
-
-
YZ125 05-17
54
125
54.0
STD
0903-0724 0910-0571
2126CS
CW15
0913-0015
B1001
x
134
56.0
2.0
0903-1160 0910-0572
2205CS
-
-
-
54.5
-
-
-
-
-
-
YZ125 05-17 Racer’s Choice GP Style
54
125
54.0
STD
0903-0513 0910-0799
2126CS
CW15
0913-0015
B1001
Electra Coated; CSA Ring is
x
134
56.0
2.0
0903-0681 0910-0800
2205CS
-
-
-
Titanium Nitride coated; ArmorGlide
54.5
144
58.0
4.0
0903-0682 0910-1255
2284CS
-
-
-
skirt coated
-
-
-
-
-
-
8 For 97-00 models.
9 For 01-04 models.
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.
2018 PARTS UNLIMITED OFFROAD