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Labels for M-Series Part Numbers
(M-Series) Part Number System
Wiseco has changed the part numbers on all Snowmobile piston kits. The P-Series part numbers have been con-
verted to the new M-Series part numbering system.
You will find the current pistons have the new (M-Series)
part numbers and the old obsolete pistons have retained
the old part number system.
The P-Series systemwas based on the English or impe-
rial measuring system. The M-Series part numbering
systemwas implemented to ensure accuracy for today’s
high performance snowmobile motors.
M-style Dome Stamping
Run/Date Code __________________________
B00G2
Part Number (complete) _________________
2373M07350
Ring Type _________________________________
LK
Exhaust Arrow ____________________________
Part number
Description
Bar code
Ring package & Bore size
Run code, circlip & wrist pin
Minimum clearance required
Replaces number
Wiseco Piston Kits include matched
and balanced forged pistons, rings,
taper wall piston pins, retainer clips
& top end gasket, unless otherwise
noted
