Poulan 545139903 Chain Brake Assembly

The Poulan 545139903 Chain Brake Assembly is a safety component designed to stop the chainsaw chain quickly in the event of kickback or sudden movement. This assembly works by engaging a braking mechanism that halts the chain’s motion when triggered, helping to reduce the risk of injury during operation. Positioned at the front of the saw, it also functions as a hand guard for added user protection. Over time, wear or damage to the brake assembly can compromise safety, making timely replacement essential. Compatible with select Poulan chainsaw models, this part helps maintain safe cutting conditions and supports proper equipment function for both occasional and regular chainsaw users.