The OEM Air Filter is used to stop debris and particles from entering the carburetor and engine, which could cause damage. It is attached in the air filter housing. It comes in black, and is contructed from foam. Installation is rated as "Easy" by customers, and will require a screwdriver. (Tip: You can place the filter in a plastic bag w...Read moreith a bit of oil, remove it, and then squeeze the filter to drain the excess oil. The remaining oil will work as a sticky trap). If the part becomes worn over time, the engine will be hard to start and will run rich. In this case, replace the part. Refer to your make, model and diagram to ensure this is the correct part for you.
This is a Manufacturer Sourced replacement part for Lawn and Garden equipment. This item is Metal an is Sold Individually. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. This Locking Nut has multiple uses based on your tool. You would need a Wrench to tighten or loosen this Hex Nut.
The hex nut attaches to the drive case cover. This part is made of metal and is sold individually even though many nuts may be needed during installation. This part may become stripped or lost and will need to be replaced. A wrench will be needed when replacing this part. It is an authentic OEM sourced item which is specially designed for use with Homelite and Ryobi chainsaws.