Lawn Boy Lawn Mower Engines

Fix Number

FIX9053764

Manufacturer Part Number

65-4710

This friction ring is an authentic item which is supplied by the original manufacturer for Toro lawn mowers. It is one of the special parts that helps to provide a tight seal between components. Over time it may wear out, get damaged or simply lost eventually requiring a replacement. This high-quality friction ring is made of a durable material and is sold as an individual component. Note, you may need a wrench set to remove and resecure the hardware that holds this part. Check the diagrams of your specific model for the exact location and the correct application of this hardware.

Fix Number

FIX9066105

Manufacturer Part Number

691986

This rocker arm adjuster, or valve lash adjuster, is a genuine OEM replacement part used in lawn tractors. It is approximately one inch long and made of steel. It is responsible for adjusting the clearance between the rocker arm and valve stem, which allows the valves to open and close as needed. The adjuster will need to be replaced if the threads are stripped, or if it is cracked, or worn down. Remove the spark plug wire to prevent accidental starting and remove the valve cover from the engine to access the rocker arm. Detach the rocker arm and unthread the faulty adjuster. Screw the new adjuster into the rocker arm and use a feeler gauge to set the correct intake clearance. Reinstall the arm into the engine and return the valve cover to complete the repair.

Fix Number

FIX9148750

Manufacturer Part Number

790848

This is an authentic OEM part. The Toro air vane is designed for use with many lawn mower engines. This plastic item pulls the choke open when the flywheel fan sends airflow from the air vane. You will need a wrench and a screwdriver for the installation. The air vane is sold individually.

Fix Number

FIX9306673

Manufacturer Part Number

791781

This item has been sourced from the original manufacturer to ensure quality. The breather assembly is intended to be used with lawnmower engines from Briggs & Stratton and Toro. The breather assembly attaches to the crankcase. This item is used to allow gasses to escape the crankcase while retaining oil. This assembly includes the breather and the gasket.

Fix Number

FIX9294554

Manufacturer Part Number

690977

The valve tappet attaches to the push rod. It is made out of metal and is sold individually. This is a Briggs & Stratton and Toro replacement part directly sourced from the manufacturer for use in engines. It may require a set of pliers during installation. This part may become broken and will need to be replaced.

Fix Number

FIX11836067

Manufacturer Part Number

127-0698

Fix Number

FIX9036012

Manufacturer Part Number

590394

This is an original Briggs & Stratton and Toro part for use in engines, generators, and lawn mowers. The exhaust valve goes next to the valve spring. This item is sold individually and is made of metal. A set of pliers may be needed during the replacement of this part. It will need to be replaced if it breaks.

Fix Number

FIX9256153

Manufacturer Part Number

104-4430

The airvane and shaft attaches to the airvane adjust collar. It is an OEM from Lawn Boy and Toro for use in lawn mowers. This is available as an individual replacement part. It may require a screwdriver and a socket set during the installation. This part is made out of plastic and will need to be replaced if it breaks.

Fix Number

FIX11829374

Manufacturer Part Number

594989

The cylinder head attaches to the cylinder head gasket. It is an authentic replacement part directly sourced from the manufacturer for use in Briggs & Stratton engines and Toro lawn mowers. This item is available individually. A wrench might be needed during the installation process. This part may become broken and will need to be replaced.

Fix Number

FIX9034844

Manufacturer Part Number

590395

This is an authentic OEM part for use with Craftsman Lawn Mowers. The engine breather vents air from the engine crankcase. The most common reason for replacing the breather is when the small engine runs poorly. This part is sold individually. Here is a list of tools that are needed to replace the breather a flat-head screwdriver, hammer, 7/16th-inch socket, 3/8th-inch socket or nut driver, Phillips-head screwdriver, 5/16th-inch socket or nut driver, 3/8th-inch socket or nut driver and pliers. Wait until the engine is cool to the touch before installing this part