RY10521A Ryobi Chainsaw - Overview

This guide bar nut is sourced from the original equipment manufacturer for use in chainsaws. It is made of metal, and has a diameter of 5/16 of an inch and a thread pitch of 18 threads per inch. The guide bar nut also has a flange on one end for added stability and security. The nut is responsible for holding the guide bar and chain in pl...Read moreace and ensures proper tension and alignment of the chain, for safe and efficient cutting. A faulty guide bar nut will result in the chain becoming loose or detached during operation, which poses a safety risk to the user. Additionally, a loose chain will result in reduced cutting ability, and damage to the guide bar. It is recommended to check your equipment manual for the correct number of guide bar nuts needed. Each nut is sold individually. Use a socket tool to loosen and remove the old nut. Clean the area around the guide bar and thread to ensure a good fit, and then insert the new nut and tighten it securely. Ensure that the chain is adequately tensioned before attempting to use the chain saw again.

This fuel filter is a genuine OEM part that is compatible with various lawn equipment models and is sold as an individual part. Fuel filters are used to remove dirt and debris from fuel entering the carburetor and engine and are made of metal with a fabric filter material, meaning this filter will eventually clog and need to be replaced. ...Read morePlease note that the fuel filter should be inspected regularly, not solely when it is clogged. The filter will be attached to the fuel line within the fuel tank and if your equipment is having starting, revving, or idling issues, the fuel filter may be the reason why. To replace it, simply use a hook to pull the old filter out from the fuel tank, use pliers to remove any clamps attached to the end of the fuel line, and pull the filter off. Attach the new filter to the fuel line, along with the clamp, and set the filter back into the tank.

This is an authentic OEM sourced replacement screw designed for use with chainsaws. It helps to secure the muffler assembly. This part is made out of metal and it is sold individually. You would need a wrench to tighten/loosen this screw.

The Chain Cover Assembly is an original part from Ryobi. This part is used with a Ryobi Chainsaw and covers both the clutch and the sprocket, and includes the bar adjuster assembly. The most common reason to replace the Chain Cover Assembly is wear or damage to the bar adjuster due to over tightening the screw. This part is made of plastic and metal components and is sold as an individual replacement part.

This is a genuine OEM replacement part, it is sold individually. The purpose of this filter is to keep dirt and other small particles from entering the carburetor and engine and causing internal engine damage. Once this type of filter gets clogged or dirty it should be changed (Not Cleaned). This is to prevent restricted air flow and foreign matter from entering the engine.

This is a Genuine OEM replacement part used on Ryobi Gas Chainsaws. This item is Sold Individually. This is the Starter Assembly that is used to crank start the Chainsaw. It includes a Plastic Shroud/Housing, Starter Pulley, Starter Spring, Grip and the Pull Rope. Please note the Screws used to attach this assembly are Sold Separately.

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.

This is an authentic Ryobi replacement part that has been OEM sourced to ensure a high level of quality. The metal flywheel is intended to be used with chainsaws. This item attaches to the crankshaft. The flywheel has magnets on its side that pass the ignition module to create the electric charge that ignites the air/fuel mixture in the cylinder. The flywheel is sold as an individual replacement part.

Genuine OEM replacement part, this item is sold individually. The purpose of the 631036001 Guide Bar Plate is to assist in keeping the Chainsaw Blade inline. Also with out this plate, if the chain was to come of the chain bar, this part would help keep the housing of the Chainsaw from being damaged.

This steel OEM part is used in Homelite and Ryobi chainsaws. The sprockets connect to and control the saw chain. This is a commonly replaced part because of its high-wear function. Please note that washers and e-rings are sold separately.