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 #
HONDA 2-STROKE (CONT)
CR500R 84-01
89
491
89.0
STD
-
0910-2022
-
CW20
S-512X
B1004
Pro-Lite
x
89.5
0.5
-
0910-2023
-
-
-
-
ArmorGlide skirt coating
79
90.0
1.0
-
0910-2024
-
-
-
-
90.5
1.5
-
0910-2025
-
-
-
-
91
2.0
-
0910-2026
-
-
-
-
CR500R 84-01
89
491
89
STD
-
-
3504TD 1
CW20
S-512X
B1004
Pro-Lite
x
89.5
0.5
-
-
3524TD 1
-
-
-
79
90
1.0
-
-
3544TD 1
-
-
-
90.5
1.5
-
-
3564TD 1
-
-
-
91
2.0
-
-
3583TD 1
-
-
-
HONDA MOTORCYCLE 4-STROKE (Correct replacement ring style is stamped on dome of piston – Example “C” for XC, “G” for XG and “H” for XH)
Z50R 82-87
39
49.5
39.0
STD.
-
0910-0738
0912-0107
CW13
0913-0004
-
11:1 Compression
x
50.7
39.50
0.5
-
0910-0739
-
-
-
-
Cylinder boring required for oversizes
41.4
53.3
40.50
1.5
-
-
-
-
-
-
XR50R 88-03
39
88
52.00
13.0
-
-
0912-0111
CW13
0913-0004
-
CRF50F 04-13
x
-
-
-
-
-
-
10.5:1 Compression
41.4
-
-
-
-
-
-
*Will not fit OEM cylinder
-
-
-
-
-
-
Race Only
39
88
52.0
13.0
-
-
0912-0111
CW13
0913-0004
-
XR50R 88-03
x
-
-
-
-
-
-
CRF50F 04-13
41.4
-
-
-
-
-
-
13:1 Compression
-
-
-
-
-
-
*Will not fit OEM cylinder
-
-
-
-
-
-
XR50R 00-03
39
49.5
39.0
STD
-
0910-0202
-
CW13
0913-0005
-
CRF50F 04-13
x
50.7
39.5
0.50
-
0910-0203
-
-
-
-
11:1 Compression
41.40
52
40.0
1.00
-
0910-0204
-
-
-
-
53.3
40.5
1.50
-
0910-0205
-
-
-
-
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
-
-
-
Cylinder boring required for oversizes
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 -
-
-
-
-
49.5
2.0
-
0910-0327
-
-
-
-
XR80R 92-03
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 -
-
-
-
-
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
-
CRF100F 04-12
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
-
-
CRF100F 04-13
x
-
-
-
-
-
-
12:1 Compression
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
-
-
-
-
-
-
ArmorGlide skirt coated
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
-
-
-
-
CRF150R 07-09
66
150
66.0
STD
0903-0688 0910-0819
-
-
-
-
Stock compression 11.7:1
x
-
-
-
-
-
-
Skirt coated
43.7
-
-
-
-
-
-
CRF150R 07-09
66
150
66.0
STD
-
0910-0821
-
-
-
-
High-compression
x
159
68.0
2.0
-
0910-0822
-
-
-
-
66mm=12.2:1 CR
43.7
-
-
-
-
-
-
68mm=12.4:1 CR
-
-
-
-
-
-
Skirt coated
-
-
-
-
-
-
XR/ XL185 + .100 Big Bore 86-91
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
-
4156M06650 2618XC
-
-
-
XR/ XL185 +.100 Big Bore 92-02
65.5
192
65.5
STD
0903-0212 4156M06550 2579XC
CW15
S-522
-
10:1 Compression
x
66.0
0.5
0903-0270 4156M06600 2598XC
-
-
-
Cylinder boring required for oversizes
57.8
66.5
1.0
0903-0201 4156M06650 2618XC
-
-
-
1 Not for use with piston PART #s 0910-2022, 0910-2023, 0910-2024, 0910-2025 or 0910-2026.
HIGH-PERFORMANCE PISTONS continued on next page.
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