Parts for Ryobi 21AB454B034 / 2003: Drive Parts

A hex screw fastens and holds two components together. It has a hexagonal head and features threading starting underneath the shoulder down to the tip. Its all-metal construction offers rigidity and longer lifespan. It is also threaded, so you can conveniently loosen or tighten in position. It measures 1/4-20 x 0.5 inch and comes in brass or gold color. Take note that this replacement hex screw may beused in different locations of a machine. Double check the device’s model number for compatibility. To install this hex screw, you will need a hex wrench or a hex socket. This hex screw is a replacement made by MTD. This screw/bolt may be used on lawn mowers, snowblowers, tillers, string trimmers, leaf blowers, edgers, chainsaws, pole pruners, log splitters, or wood chippers made by Craftsman, Toro, Cub Cadet, Ryobi, Troy-Bilt, Husky, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, or MasterCut. This OEM hex screw is sold individually.

This is a genuine OEM engine pulley sourced directly from the manufacturer for use on tiller engines and other engines with a pull start. The starter cord is attached to a pulley that has a spring for rewinding the cord after the engine starts. If the engine pulley is damaged due to rust or corrosion and the string won't pull, the engine won't start. The pulley may make screeching or whining sounds when pulled, this is one way to recognize that the pulley is beginning to go bad and should be replaced soon.Before replacing the pulley, make sure the engine is cool and remove the spark plug. Remove the starter housing to access the rope starter and pulley. Disassemble the pulley system and discard the old pulley. Reinstall the new pulley and thread the starter cord back around it. Reassemble the housing and put the spark plugs back so that you can test the starter. This engine pulley is made of heavy-duty steel and sold as an individual unit. It is designed to be compatible with small engines manufactured by Craftsman.

This engine pulley outer half is a genuine MTD part, sold individually. This engine pulley outer half can be used as a replacement part for a tiller. The purpose of an engine pulley outer half is to function in conjunction with the engine pulley inner half to form the pulley for a tiller, which affixes to the crankshaft and facilitates the driving of the belt.The engine pulley outer half might have to be replaced at some point in the lifespan of a tiller if the component is not functioning as it usually does. This could occur if the component suffers damage in the form of puncturing, cracking, breaking, or eroding. If this occurs, the component should be removed and replaced by this genuine OEM replacement part. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. Always unplug the appliance before performing any kind of repair or replacement.This is an OEM part sourced directly from the manufacturer. It is sold individually. This engine pulley outer half is compatible with the following outdoor appliance brands: MTD, Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, Huskee, Bolens, Yard Man, and MasterCut.

This replacement part is a screw. It is a genuine replacement part made by MTD. Typically screws are found in many different types of machines. These parts are important in holding different pieces together so that the user is able to operate the appliance effectively. A replacement screw might be needed if some parts of the appliance are loose or missing from place. Screws can become stripped over time with normal equipment use. If this is the case it is recommended that they be replaced as soon as possible. The repair for this screw is simple and will most likely require common household tools as well as pliers if the previous part is lodged in place. This screw is made of durable metal. This part is sold individually and is sourced directly from the manufacturer to ensure proper fit. This is a genuine OEM replacement part.

This bell washer is a genuine MTD part, sold individually. This bell washer can be used as a replacement part for a lawn tractor, chipper shredder, tiller, or lawnmower. This bell washer adds spacing on a shaft in the tool.If the user of the appliance notices that a washer is missing, it should be replaced. General wear and tear is very normal for outdoor appliances, and if it occurs, the washer should be removed and replaced with this genuine OEM replacement part.This is an OEM part sourced directly from the manufacturer. It is sold individually. This bell washer is compatible with the following outdoor appliance brands: MTD, Yard Man, Yard Machines, and Troy-Bilt.