Parts for Ryobi 21AB454B734 / 2004: Drive Parts

Hex head screw for securing components on lawn mowers, tractors, and outdoor power equipment. Replace if missing, stripped, or damaged during maintenance.

Self-tapping hex screw for securing components on lawn mowers, tractors, tillers, and outdoor power equipment. Replace when stripped, missing, or worn.

Hex screw fastener for securing lawn mower components. Replace if stripped, rusted, or missing to ensure proper assembly and equipment stability.

Idler pulley rod for tillers. Replace if bent, worn, or causing belt misalignment and vibration. Verify fit with your tiller model number before ordering.

Idler pulley for walk-behind mowers and tillers. Replace if belt slips, squeals, or pulleys wobble. Verify fit with your model number before ordering.

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.

Tiller won't engage or belt slips? This engine pulley outer half works with the inner half to drive the tines. Moderate DIY repair for tillers.

Replacement screw for lawn mowers and outdoor power equipment. Secures components together for proper operation. Order if original is stripped or missing.

Self-tapping screw for lawn mowers and outdoor power equipment. Secures panels, covers, and components. Replace if stripped, missing, or corroded.

Hex nut for tillers and snow throwers. Secures various components throughout the machine. Replace if stripped, corroded, or missing during repairs.

Bell washer adds spacing on shafts in lawn tractors, tillers, mowers, and chipper shredders. Replace if washer is missing, worn, or damaged during maintenance.