Fitment:
for Husqvarna 154, 154XP 2‑stroke gas chainsaws.
for Husqvarna 254, 254XP, 254G 2‑stroke gas chainsaws.
Please verify your original cylinder bore diameter (45mm), decompression valve port position, and intake flange bolt pattern carefully before purchasing.
 

Replace Part Number:
503 50 39‑03, 503503903, 503‑50‑39‑03
503 50 39‑01, 503503901, 503‑50‑39‑01
501 89 85‑02, 501898502, 501‑89‑85‑02
 

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

Specifications:
- Product Type: Outdoor Power Equipment Chainsaw 2‑Stroke Gas Engine 45mm Cylinder Piston Ring Wrist Pin Circlips Needle Bearing Decompression Valve Spark Plug Fuel Filter Carburetor Diaphragm Overhaul Rebuild Service Kit
- Feature: Direct replacement 45mm cylinder piston overhaul kit engineered to restore peak engine compression, eliminate cylinder scoring and power loss, ease recoil pull starting with decompression valve, rebuild carburetor fuel metering, and deliver full cutting efficiency.