Fitment:
for Stihl 025 2‑stroke gas chainsaws.
for Stihl MS250, MS250C 2‑stroke gas chainsaws.
Please verify your original cylinder bore diameter (42.5mm), piston pin diameter (10mm), and crankshaft oil seal dimensions carefully before purchasing.
 

Replace Part Number:
1123 030 2000, 11230302000, 1123‑030‑2000
9638 003 1581, 96380031581, 9638‑003‑1581
 

Package included:
You will get what you see in the 1st listing photo.
 

Specifications:
- Product Type: Outdoor Power Equipment Chainsaw 2‑Stroke Gas Engine 42.5mm Piston Ring Wrist Pin Circlips Crankshaft Oil Seals Overhaul Service Kit
- Feature: Direct replacement 42.5mm piston kit engineered to restore engine cylinder compression, eliminate cylinder wall scoring, stop crankcase air leaks, restore smooth idle tuning, and deliver full cutting power.