This chain brake assembly (part number 545139902) is for chainsaws.
Chain brake assembly 545139902 stops the chain when engaged or in the event of kickback. The assembly may include multiple parts; refer to your parts diagram for a complete list of parts included.
Let the engine cool and disconnect the spark plug wire before installing this part. Wear work gloves to protect your hands.
545139902 (or 530054725)
The manufacturer substituted part 530054725 with this new part 545139902
Lawn & Garden/Yard/Farm