This is a Briggs World Formula rocker arm with an old - style design and a 6mm hole size. It was formerly known as part number 557015, offering reliable performance for your engine needs.
To use this rocker arm, first make sure your engine is turned off and cooled down. Carefully install the rocker arm in the designated place according to your engine's manual. When installing, ensure the 6mm hole aligns properly. As for maintenance, check it regularly for any signs of wear or damage. If you notice excessive wear, it's a good idea to replace it. Keep it clean and free from dirt and debris to ensure smooth operation. Always follow the safety instructions in your engine's manual when working with this part.
