Lock Spring 503436501

This is a genuine manufacturer-sourced replacement part which is specially designed for Husqvarna, Poulan and Jonsered chainsaws. The purpose of this spring is to apply tension on the catch which is sold separately. If the hardware is worn or damaged, this will provide an identical replacement for the original component that was installed on a new unit. Refer to the appropriate diagrams for your model to ensure the exact location and the correct repair procedure. Note, this high-quality lock spring is made of durable metal and is sold individually.