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 #
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) (CONT)
CRF250R 08-09
78
249
78.0
STD
-
0910-2948
-
CW16
0913-0008
-
RACER’S CHOICE SERIES
x
14:1 High Compression
52.2
Boxed Forging
Shot peened
Titanium Nitride coated rings
ArmorGlide skirt coated
CRF250R 10-13
76.8
249
76.8
STD
0903-0940 0910-2886
-
CW16
0913-0008
-
13.2:1 Stock Compression
x
ArmorGlide skirt coated
53.8
CRF250R 10-13
76.8
249
76.8
STD
-
0910-2887
-
CW16
0913-0008
-
14.2:1 High Compression
x
ArmorGlide skirt coated
53.8
CRF250R 10-15
76.8
249
76.8
STD
-
0910-2950
-
CW16
0913-0008
-
RACER’S CHOICE SERIES
x
14.5:1 High Compression
53.8
Boxed Forging
Shot peened
Titanium Nitride coated rings
ArmorGlide skirt coated
CRF250R 10-15
76.8
-
76.8
-
-
0910-3933
-
CW15
-
-
+2mm long rod conversion
x
Max compression
53.8
ArmorGlide skirt coated
CRF250R 14-15
76.8
-
76.8
STD
0903-1137 -
-
CW16
0913-0008
13.5:1 Stock Compression
x
53.8
XL250 79-82
74
248
74.0
STD
-
-
2913XC
CW19
S-376
-
XR250 thru 83
x
74.5
0.5
-
-
2933XC
10:1 Compression
57.8
75.0
1.0
-
4171M07500 2953XC
75.5
1.5
-
-
2973XC
76.0
2.0
-
-
2992XC
XR250R 84-85
75
250
75.0
STD
-
-
2953XG
CW17
S-523
-
XL250R 84-87 Radial Head
x
75.5
0.5
-
4329M07550 2973XG
56.5
76.0
1.0
-
4329M07600 2992XG
XR250R 86-04
73
250
73.0
STD
0903-0265 4466M07300 2874XC
CW17
0913-0007
-
10.5:1 Compression;
x
73.5
0.5
0903-0216 4466M07350 2894XC
(73-75.5mm)
cylinder boring
59.5
74.0
1.0
0903-0193 4466M07400 2913XC
S-523
required for oversizes
75.5
2.5
-
0910-0753
2973XC
(77-78mm)
77.0
4.0
0903-0570 0910-0754
0912-0118
78.0
5.0
0903-0571 0910-0755
0912-0119
XR250L 91-96
73
250
73.0
STD
-
4466M07300 2874XC
CW17
0913-0007
-
10.5:1 Compression; cylinder boring required for oversizes
x
73.5
0.5
-
4466M07350 2894XC
(73-75.5mm)
59.5
74.0
1.0
4466M07400 2913XC
S-523
75.5
2.5
-
0910-0753
2973XC
(77-78mm)
77.0
4.0
-
0910-0754
0912-0118
78.0
5.0
-
0910-0755
0912-0119
XR350R 1983-84
84
339
84.0
STD
-
-
3307XC
CW21
S-529
-
Radial Head
x
84.5
0.5
-
-
3327XC
10:1 Compression
61.3
85.0
1.0
-
4286M08500 3347XC
*Will not fit XL models
XR400R 96-04
85
397
85.0
STD
-
4606M08500 3347XC
CW20
S-520
-
10:1 Compression
x
86.0
1.0
-
4606M08600 3386XC
70
87.0
2.0
-
0910-2910
3425XC
88.0
3.0
-
0910-2911
3465XC
XR400R 96-04
85
397
85.0
STD
-
4628M08500 3347XC
CW20
S-520
-
11:1 Hi-Compression
x
86.0
1.0
0910-2913
3386XC
70
87.0
2.0
0910-2914
3425XC
88.0
3.0
0910-2915
3465XC
XR400R 96-04
89
440
89.0
4.0
-
0910-0757
-
CW20
S-520
-
440 Overbore
x
12.5:1 Hi-Compression. Cylinder sleeving required
70
CRF450R 02-03
96
449
96.0
STD
-
4753M09600 0912-0122
CW19
0913-0009
-
11.5:1 Standard Compression
x
ArmorGlide skirt coated
62.1
CRF450R 02-08
96
449
96.0
STD
0903-0567 0910-0334
0912-0122
CW19
0913-0009
-
12:1 Compression (std. for 04)
x
ArmorGlide skirt coated
62.1
CRF450R 02-08
96
449
96.0
STD
0903-0552 4755M09600 0912-0122
CW19
0913-0009
-
12.5:1 Hi-Compression.
x
ArmorGlide skirt coated.
62.1
Cylinder boring and plating required for oversizes
CRF450R 02-08
96
449
96.0
STD
0903-0557 0910-0335
0912-0122
CW19
0913-0009
-
x
13:1 Hi-Compression. ArmorGlide skirt coated
62.1
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.
2017 PARTS UNLIMITED OFFROAD