Parts for Briggs & Stratton 446877-0121-E1: Crankshaft, Cylinder, Engine Sump Parts

Prevents oil leaks around the crankshaft in small gas engines. Replace if oil seeps from the bottom of the engine. Verify fit with your model number.

Flange screw for lawn and garden engines. Distributes connection force over a larger area. Replace if threads are stripped, head is damaged, or screw is missing.

Fix oil leaks or perform routine oil changes with this engine oil drain plug. Threads into the oil tank base for secure drainage. Simple DIY repair.

Engine won't restart after hitting an object? A sheared flywheel key is often the cause. This small part keeps the flywheel connected to the crankshaft.

Fix low compression or hard starting in your snow thrower with this engine piston assembly. Includes rings and pin for complete cylinder rebuild.

Piston ring set for small engines. Seals the piston to cylinder wall for proper compression. Replace when rings are worn, broken, or causing excessive oil consumption.

These genuine replacement piston rings seal the crankcase and create the optimal compression to power the lawn tractor engine. Piston rings are constantly exposed to high pressure and temperatures and can wear down or become damaged over time. A worn or broken seal means that the engine will lose compression and power and could become completely disabled if the damage is bad enough. Replacing the piston rings will give the engine the proper seal for optimal performance when OEM parts like this ring set are used. This genuine OEM ring set is manufactured to be used in hundreds of engines for lawn tractors manufactured by Briggs & Stratton and Toro. These rings have multiple locations and applications, depending on the type of engine and tractor in question. The piston rings are sold in a set of four durable rings made of high-quality metal. Always perform engine repairs only after the engine has cooled and when the spark plug has been disconnected for safety.

Standard piston ring set for small engines. Replace when you notice oil consumption, loss of compression, or excessive blow-by. Verify fit with your model number.

Flange screw for lawn and garden engines. Distributes connection force over a larger area. Replace if threads are stripped, head is damaged, or screw is missing.

This O-ring seal is used in all sorts of lawn and garden equipment as a seal for the oil dipstick. It helps seal the system from debris and dirt that could otherwise reach the oil and end up in the motor. Over time, an O-ring will start to shrink, which can result in air and oil leaks and a poorly performing engine. If the O-ring has pits, blisters, or pocks on the surface, it will also need to be replaced.If an O-ring seal is worn, damaged, or clogged, it should be cleaned or replaced before the equipment that houses it is used again. A flat head screwdriver can be used to remove the damaged O-ring. Once the old one has been removed, a new one can be placed into the same position before using the tool.This O-ring seal is designed for lawnmowers, snowblowers, tillers, wood chippers, pressure washers, generators, and leaf blowers. It is compatible with equipment from Simplicity, Briggs & Stratton, MTD, Craftsman, Snapper, Toro, Lawn-Boy, and Cub Cadet. The seal is a genuine OEM replacement part directly sourced from the manufacturer. It comes with a single seal.

This oil pump cover is a genuine Midwest Engine part, sold individually. This oil pump cover can be used as a replacement part for lawnmowers, snowblowers, wood chippers, and lawn tractors. It ensures that the oil pump can deliver oil to the engine without any excessive oil leakage. Symptoms of a damaged oil pump cover can include oil leakage in and around the cover, reduced oil pressure, and oil leakage in and around the intake manifold gasket. If any of these symptoms occur and are directly attributable to the oil pump cover, the part should be immediately replaced with this genuine OEM replacement part. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This is an OEM part sourced directly from the manufacturer, and it is sold individually. This Oil pump cover is compatible with the following outdoor appliance brands: Midwest Engine, Briggs & Stratton, Toro, Simplicity, Cub Cadet, Lawn-Boy, and MTD.

Filters debris and buildup from engine oil to protect internal components. Replace when oil changes or if clogged to maintain performance. Verify fit.