ENGINE
APPAREL
M-SERIES PART NUMBER SYSTEM
HELMETS
M-STYLE DOME STAMPING
AMPING
In 2001, Wiseco changed the part numbers on all individual
snowmobile piston kits. The P-Series part numbers have been
converted to the new M-Series part numbering system.
The P-Series system was based on the English, or Imperial
measuring system. The M-Series is based on the metric system.
The M-Series was implemented to ensure accuracy for today’s
high performance snowmobile motors.
GOGGLES
Run/Date Code
Part Number (complete)
BAGS &
SURVIVAL
Ring Type
Exhaust Arrow
VIDEOS
SNOWMOBILE
ACCESSORIES
SLEDS &
TRAILERS
LABELS FOR M-SERIES PART NUMBERS
Part number
Description
Ring package & bore size
Run code, circlip & wrist pin
Minimum clearance required
Replaces number
ELECTRICAL
Bar Code
EXHAUST
PISTON CLIPS*
ENGINE
High Strength, Easy to Install. Two are furnished with
every piston. Additional circlips are sold per pair.
WISECO PISTON SIZE IS
DESIGNATED IN MILLIMETERS
This chart shows the new millimeter identification
stamp in comparison to old identification
NEW IDENTIFICATION
STAMP (in mm)
OLD IDENTIFICATION
STAMP (in inches)
STD ............................................... STD
.25.................................................. .010
.50.................................................. .020
.75.................................................. .030
1.0.................................................. .040
1.25................................................ .050
1.5.................................................. .060
2.0.................................................. .080
Order numbers below for replacement.
Description CS Circlip CW Circlip List
10mm Circlip
12mm Circlip
13mm Circlip
14mm Circlip
15mm Circlip
16mm Circlip
17mm Circlip
18mm Circlip
19mm Circlip
20mm Circlip
21mm Circlip
22mm Circlip
23mm Circlip
24mm Circlip
CS-13
CS-17
CS-18
CS-19
CS-20
CS-22
CW-10
CW-12
CW-13
CW-14
CW-15
CW-16
CW-17
CW-18
CW-19
CW-20
CW-21
CW-22
CW-23
CW-24
$1.95
1.95
1.95
1.95 CS STYLE CIRCLIP
1.95
1.95
1.95
1.95
1.95
1.95
1.95
1.95 CW STYLE CIRCLIP
1.95
1.95
PISTON PIN NEEDLE CAGE BEARINGS
Dimensions in MM
ID OD Length WPS#
12 x 15 x 14.5
B1041
12 x 15 x 16.3
B1042
12 x 16 x 14.8
B1043
12 x 16 x 15.5
B1000
12 x 17 x 14.2
B1015
14 x 18 x 15.6
B1080
14 x 18 x 16
B1012
14 x 18 x 16.8
B1083
14 x 18 x 17.5
B1006
14 x 18 x 19
12-1401
14 x 18 x 20
B1018
15 x 19 x 17
B1001
15 x 19 x 20
B1013
List
$10.95
10.95
10.95
10.95
10.95
11.95
11.95
14.50
11.95
6.50
11.95
11.95
11.95
List
11.95
$6.95
11.95
11.95
7.50
11.95
6.95
11.95
12.95
6.95
12.95
12.95
7.50
12.95
$7.50
BODY
TUNNEL &
RAIL EXT.
TRACKS &
SPROCKETS
REAR
SUSPENSION
Dimensions in MM
ID OD Length WPS#
18 x 23 x 24
B1002
18 x 23 x 24
12-1414
19 x 24 x 24.8
B1036
20 x 24 x 23
B1072
20 x 24 x 24
B1071
20 x 25 x 21.8
B1039
20 x 25 x 23
B1031
20 x 25 x 25
B1023
20 x 25 x 29
B1004
20 x 26 x 24
B1024
21 x 25 x 24
B1081
22 x 27 x 22.8
B1074
22 x 27 x 24.8
B1030
24 x 29 x 25
B1075
28 x 36 x 20
B1065
FRONT
SUSPENSION
SKIS, SKINS
& RUNNERS
List
12.95
7.50
12.95
12.95
12.95
12.95
16.95
12.95
12.95
12.95
12.95
13.95
13.95
13.95
18.95
FOR APPLICATIONS SEE WISECO PISTON PAGES. IF YEAR MODEL IS NOT LISTED MEASURE FOR FIT.
309
WINDSHIELDS
SHOCKS
To order by Dimensions, Measure:
ID = OD of Wrist Pin
OD = ID of Connecting Rod Top
Length = Length of Bearing Cage
Dimensions in MM
ID OD Length WPS#
15 x 20 x 17.8
B1038
16 x 20 x 19
12-1402
16 x 20 x 19.5
B1016
16 x 20 x 22.5
B1021
16 x 20 x 23
12-1405
16 x 21 x 19.5
B1008
16 x 21 x 22
12-1406
16 x 21 x 22.5
B1005
18 x 22 x 19.65 B1037
18 x 22 x 22
12-1410
18 x 22 x 22
B1003
18 x 22 x 23.6
B1022
18 x 22 x 24
12-1411
18 x 23 x 22
B1014
18 x 23 x 22
12-1413
STEERING &
CONTROLS
CARBS &
INTAKE
BRAKES
CHAIN &
SPROCKETS
BELTS
CLUTCHING
CHEMICALS
TOOLS
INDEX