Chainsaw Thermostats

Genuine Husqvarna replacement part, this part is sold individually. The 503939601 Air Purge does just what the part name says. It purges the air out of the carburetor. Then it forces fuel from the fuel tank and fuel line in to the carburetor.

This thermal control kit is an OEM replacement designed to regulate engine operating temperature and help prevent overheating during mower operation. It manages airflow and heat control around the engine to reduce excessive wear and support consistent performance. This kit is an ideal replacement when heat-related issues affect operation or when restoring proper temperature control during routine ...