Pistone per STIHL MS171 Motosega (37mm) [#11390302003]

This listing is about a brand new top-quality after-market Piston Kit in its original package for STIHLRicambi per STIHL macchine MS 171, MS 171C-BE, MS171-Z model (Machine Numbers up to 289582455), 37mm in diameter, and replaces OEM Part #1139 030 2003. This item does not fit newer editions of STIHL MS171 models with bore size 38mm.