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 #
XR70R 97-03
47
72
47.0
STD
0903-0933 0910-0747
0912-0112
CW13
0913-0005
-
CRF70F 04-12
x
73
47.5
0.50
-
0910-0748
0912-0113
10.5:1 Compression
41.4
75
48.0
1.0
-
0910-0749
0912-0114
76
48.5
1.5
-
-
0912-0115
78
49.0
2.0
-
-
-
XR80R 79-91
47.5
79.7
48.0
0.50
0903-0229 0910-0324
0912-0114
CW13
0913-0005
-
9.7:1 Compression
x
48.5
1.00
0903-0230 0910-0325
0912-0115
45
49.0
1.50
0903-0579 0910-0326
-
49.5
2.0
-
0910-0327
-
47.5
79.7
48.0
0.50
0903-0173 0910-0324
0912-0114
CW13
0913-0005
-
CRF80F 04-13
x
48.5
1.00
0903-0174 0910-0325
0912-0115
9.7:1 Compression
45
49.0
1.50
0903-0232 0910-0326
-
49.5
2.0
0910-0327
-
XR100R 85-91
53
99.2
53.5
0.5
-
0910-0328
0912-0124
CW14
-
-
9.4:1 Compression
x
54.0
1.0
0903-0242 0910-0329
0912-0125
45
54.5
1.5
-
-
0912-0126
55.0
2.0
-
0910-0331
0912-0127
XR100R 92-03
53
99.2
53.5
0.5
0903-0199 0910-0328
0912-0124
CW14
0913-0006
-
x
54.0
1
0903-0180 0910-0329
0912-0125
9.4:1 Compression
45
54.5
1.5
-
-
0912-0126
55.0
2.0
-
0910-0331
0912-0127
XR100R 85-03
58
120
58.00
5.0
-
0910-0752
0912-0117
CW14
-
-
x
45
58mm Big Bore. Cylinder sleeving required for oversizes
CRF125F 14-17
52.4
-
53.5
1.1
-
0910-3930
0912-0124
CW12
-
-
10:1 Compression
x
57.9
CRF150F 06-17
57.3
-
57.5
-
-
0910-3946
CW14
10:1 High Compression
x
58.0
0910-3947
0912-0117
ArmorGlide skirt coated
57.8
58.5
0910-3948
66
150
66.0
STD
0903-0688 0910-0819
-
-
-
-
Stock compression 11.7:1
x
159
68.0
2.0
0903-0689 0910-0820
Skirt coated
43.7
CRF150R 07-09
66
150
66.0
STD
-
0910-0821
-
-
-
-
High-compression
x
159
68.0
2.0
-
0910-0822
43.7
68mm=12.4:1 CR
Skirt coated
CRF150R 07-09
66
150
66.0
STD
-
0910-2945
-
-
-
-
x
43.7
Shot peened
Titanium Nitride coated rings
ArmorGlide skirt coated
65.5
192
65.5
STD
-
4156M06550 2579XC
CW15
S-522
-
10:1 Compression
x
66.0
0.5
0903-0211 4156M06600 2598XC
Cylinder boring required for oversizes
57.8
66.5
1.0
0903-0178 4156M06650 2618XC
XR/ XL185 +.100 Big Bore 92-02
65.5
192
65.5
STD
0903-0212 4156M06550 2579XC
CW15
S-522
-
x
66.0
0.5
0903-0270 4156M06600 2598XC
Cylinder boring required for oversizes
57.8
66.5
1.0
0903-0201 4156M06650 2618XC
XR200 to 83
65.5
192
65.5
STD
0903-0231 4156M06550 2579XC
CW15
S-522
-
10:1 Compression
x
66.0
0.5
0903-0172 4156M06600 2598XC
57.8
66.5
1.0
0903-0235 4156M06650 2618XC
CRF230F 03-17
65.5
223
65.5
STD
-
0910-0332
-
CW15
-
-
x
11:1 Compression
66.2
CRF250R 04-07
78
249
78.0
STD
0903-0553 0910-0333
0912-0120
CW16
0913-0008
-
CRF250X 04-17
x
52.2
CRF250R 04-07
78
249
78.0
STD
0903-0551 0910-0756
0912-0120
CW16
0913-0008
-
CRF250X 04-17
x
13.5:1 Hi-Compression.
52.2
78
276
82
4.00
-
0910-2938
-
CW16
0913-0008
-
13.5:1 Compression
x
276cc Big Bore Kit
52.2
ArmorGlide skirt coated
78
249
78.0
STD
-
0910-1677
0912-0120
CW16
0913-0008
-
x
ArmorGlide skirt coated
52.2
CRF250R 08-09
78
249
78.0
STD
-
0910-2931
0912-0120
CW16
0913-0008
-
x
ArmorGlide skirt coated
52.2
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