Piston Stihl MS181 "1st generation" (38mm)

Piston fits Stihl MS181 (38mm)
Note! Only older 1st generation machines with “single” cylinder drain (newer models have “doors” glued on the sides).

Note! Unlike the standard piston, the piston rings are 1.5 mm thick, meaning you cannot use the original rings (=1.2 mm) with this piston.

Piston diameter 38mm

Replace original numbers:

Stihl 11390302002, 1139-030-2002