Parts for Briggs & Stratton 121412-0219-E1: Cam, Crankshaft, Piston Group Parts

The flywheel key is the component on outdoor equipment that keeps the flywheel connected to the crankshaft. Over time, this key may become damaged or broken, particularly if the engine experiences a forceful stop, like hitting a large stationary object. If the flywheel key breaks, the engine will not start. A slightly damaged flywheel key is noticeable through symptoms like misfiring, backfiring, or having no power. If any of these are occurring, the flywheel key should be replaced to prevent complete engine failure.A flywheel puller tool is required for this repair. Make sure the engine is cool before working on the flywheel. Wear safety gear, including gloves and eye protection. Disconnect the spark plug and remove the blower housing. Remove the flywheel mounting nut and set it aside. Take the recoil starter cup off the mower. Use the flywheel puller to remove the flywheel and access the flywheel key. Remove the broken flywheel and replace it with the new flywheel. Reverse the steps to put the mower back together.This flywheel key is made of an aluminum alloy and is sold as an individual part. It is designed for use in lawnmowers, lawn tractors, and other small engines manufactured by Briggs and Stratton, Toro, Lawn-Boy, Simplicity, MTD, and others.

This screw is a genuine Midwest Engine replacement part for small engine appliances, including lawn tractors, lawn mowers, snowblowers, leaf blowers, vacuums, and tillers. The purpose of a screw is to tightly link materials together through rotation that pierces into the material. A screw might have to be replaced in the event that it is lost or misplaced, a common occurrence due to its size. A screw might also be replaced if it deteriorates over time, through erosion, cracking, or piercing, thereby reducing its efficacy in holding materials together. This kind of damage can be attributed to general overuse, to age, or simply to long-term exposure. If a screw is subject to any of this kind of damage, it is best to replace it immediately, as the materials held together by the screw must continue to be held together. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This screw is compatible with the following brands: Briggs & Stratton, Toro, Cub Cadet, and Lawn Boy.

This part is a replacement camshaft. This is a genuine OEM part made by Midwest Engine and has been sourced directly from the manufacturer. It is intended to replace a defective or broken camshaft in various models of outdoor power equipment.The camshaft is important as it closes and opens the equipment's exhaust and intake valves. This part is a critical engine component and thus should be replaced if faulty in any way. Make sure to drain the fuel tank and disconnect the spark plugs before attempting to install this part. Wear work gloves to protect the hands and check that equipment is powered off and cooled down before starting the repair process. For more accurate information on how and where to use this camshaft, the appropriate owner's manual and equipment diagrams should be referred to. This camshaft is a genuine OEM part made of durable materials and is sold individually. It is suitable for use with outdoor power equipment models that have been manufactured by Midwest Engine, MTD, Craftsman, and other brands.

This genuine replacement retainer E-clip is intended for use with lawn mowers, snowblowers, pressure washers, and more. It gets its name from the shape of the letter “E”, and has one side open, allowing it to have a larger retaining area and higher thrust capacity. Depending on the piece of equipment they are installed in, these retaining clips hold bearings, gears, pulleys, and other moving parts which have grooves in them. They are made of heat-treated steel which allows it hold strong through many uses, but it may eventually begin to wear out or break with extended use.This retainer ring E-clip is compatible with several equipment brands which use Briggs and Stratton engines This is a genuine OEM replacement part and is sold individually.