Parts for Briggs & Stratton 474177-0112-E1: Valve Gasket Set, Cylinder Head, Valve Covers Parts

Oil fill cap for small engines. Seals the oil reservoir opening to prevent leaks and contamination. Replace if cracked, stripped, or missing threads.

Spark plugs work by providing an electric spark in a combustion chamber, igniting the mix of fuel and air that allows the engine to turn and propel a drive shaft. Insulated with ceramic to make sure the electric charge flowing through it is properly discharged, the plug is screwed into the cylinder head. The movement of the piston sucks fuel into the cylinder until it reaches the optimum level, the compression triggering the spark plug to send a pulse that ignites the fuel and pushes the piston to the back of the cylinder. This process is repeated hundreds of times a minute in an internal combustion engine. Eventually spark plugs simply wear out, particularly if they are not properly gapped, if the fuel mixture is improper, or the engine is subject to excessive use. This plug is compatible with most lawnmowers, small engines, and pressure washers made by Briggs & Stratton, Cub Cadet, and Toro. The plug itself is a guaranteed OEM part and is sold individually.

Fix misfiring, hard starting, or no spark issues with this spark plug boot. Connects spark plug to magneto on lawn mowers and small engines. Easy DIY fix.

This part is a replacement valve seal. This is a genuine OEM part made by Midwest Engine and has been sourced directly from the manufacturer. This part's intended use is to replace a broken or defective valve seal in several types of outdoor power equipment.This particular valve seal is intended to create a seal for the tappet valve within the engine. The tappet valve helps to open and close the engine's intake or exhaust valve. This part may become worn or broken over time, requiring replacement. It's important when working on or near an engine to make sure the equipment is powered off and completely cooled down before starting any repairs. Access to proper tools is recommended before attempting this part installation. For more accurate information on how and where to install this valve seal, reference the appropriate owner's manual and specific equipment diagrams.This is an authentic OEM replacement part made of high-quality materials. This part can be used with small engine outdoor power equipment that have been manufactured by Midwest Engine. Sold individually.