4455915 Parts

The spark plug helps to start the engine by creating the spark that will cause the fuel to ignite in the engine during combustions. Over time, the spark plugs will become worn down and go bad. Multimeters are typically used to test the spark plugs. However, owners should also regularly look at the spark plugs to search for signs of corrosion that could indicate they are going to go bad. If they are not functioning properly, the engine will not fire and start. They will need to be replaced. This is an OEM replacement part that can be used on a range of small engines and lawn equipment from many brands. Compatible brands include Toro, Briggs & Stratton, Craftsman, Cub Cadet, Simplicity, and Snapper.

This replacement valve seal is a genuine OEM part for a lawn tractor or mower. The valve stem is a type of valve that transfers oil into the cylinder and then immediately reseals due to the pressure in the chamber. However, if the seal is damaged, it will not close and oil will leak into the cylinder. If this happens, the cylinder head may become overly lubricated and not run well. This seal helps prevent that from happening. It fastens to the intake valve and valve stem keeper. Seals will naturally wear out over time due to stress and exposure to corrosive oxidizing agents in an engine. When this happens, the valve will leak oil. To test if the valve seal is compromised, look for whitish-grey smoke that indicates burning oil and also measure to see how much oil the engine is consuming. If the seal is breached, use a screwdriver and socket wrench set to change out the part. This top of the line replacement valve seal is compatible with Briggs & Stratton, Toro, and Lawn Boy lawn tractors. It is sourced from the original manufacturer and ships individually.