This is an original replacement part sourced directly from the manufacturer. The rocker arm is found in Generac generators. This part is made of metal, and is attached to the push rod guide plate in the head guide and seat assembly. You may require a screwdriver or Allen wrench when replacing this product. This item is sold as an individual replacement part.
The air cleaner element goes between the air cleaner cover and the canal cover. It is priced as an individual replacement part and helps to filter the air moving through the device. Filters will become dirty over time and will need to be replaced. This air cleaner is an OEM from Generac for use in generators and may require a screwdriver and a socket set in order to do the replacement.