Parts for Briggs & Stratton 21A977-0179-B9: Carburetor, Kit - Carburetor Overhaul Parts

This genuine OEM replacement intake manifold gasket for a small gas-powered lawn appliance motor acts as a seal between two engine components, like any other gasket. However, the intake manifold gasket is one of the most necessary gaskets because it is responsible for sealing the engine vacuum and coolant. Intake manifold gaskets can be damaged because of their location in the engine. If the engine has been running hot for a while, the metal can expand and crush the gasket, causing it to fail. If this happens, the engine will begin overheating, as coolant can no longer reach the areas where it is needed. Replacing an intake manifold gasket will mean removing the air filter and its housing, the oil drain tube, blower housing, breather tube, and carburetor. Making this repair requires a set of socket wrenches and screwdrivers. This part is compatible with a wide range of mowers, chippers, and blowers from Briggs & Stratton, Toro, Cub Cadet, MTD, Simplicity, and Lawn Boy. It is sourced from the original manufacturer and ships individually.

Mounting screw for lawn and garden engines. Secures engine components and covers. Replace if stripped, corroded, missing, or damaged during maintenance.

Engine stalling at idle? This idle speed kit prevents stalling when the engine isn't in motion. Essential repair for lawn tractors and garden equipment.

Float hinge pin for lawn and garden engines. Secures the carburetor float assembly. Replace if bent, worn, or missing to restore proper fuel flow regulation.

Fix engine fuel overflow or starting issues caused by a stuck or deteriorated carburetor float valve needle. Common repair for lawn mowers and snow blowers.

Carburetor inlet seat for lawn and garden engines. Installs in the carburetor fuel inlet. Replace if cracked, worn, or causing fuel leaks.

Here is a replacement carburetor float for small engines used on lawn mowers and other machines. The carburetor combines air and fuel, ensuring that the engine has the right mix for combustion and performance. The carburetor float plays a critical role in that process by helping to ensure that the optimum level of fuel stays in the chamber. As the fuel level rises and falls, the float does as well, operating the fuel needle and replenishing or slowing the supply of gasoline. Over time, carburetor floats can degrade due to exposure to gasoline and high temperatures. A sticking carburetor float is a sign that it needs to be replaced. The engine may sputter, may rev high, or may choke itself out. Replacing the carburetor float will require removing the air box, the air cleaner element, the fuel line, and the carburetor itself. The carburetor bowl must be removed to access the old float and replace it with a new one. Note that this is a new OEM carburetor float designed to fit Briggs & Stratton engines on over 150 different yard machines from brands like Murray, Toro, and Lawn-Boy. It is sold individually.

Seals the carburetor float bowl to prevent fuel leaks. Replace if you notice fuel leaking or excessive fuel consumption. Confirm fit with your model.

Seals carburetor float bowl bolt to prevent fuel leaks on lawn mower engines. Replace during carburetor overhaul for proper seal. Verify fit with model.

This is an O-ring seal that can be used in many types of engines for lawn and garden equipment. It is responsible for sealing the connection between the cylinder head assembly and the intake manifold. The sealing process prevents dirt and debris from moving throughout the equipment and getting into the motor. As time passes, the O-ring seal can shrink, causing oil or air leaks and decreasing engine performance.When the O-ring is damaged, clogged, worn, or broken, it will need to be cleaned or replaced before using the lawn equipment again. The damaged or broken O-ring seal can be removed using a flat head screwdriver. After it has been removed, the replacement component can be installed in the same place. Make sure that the O-ring seal is properly seated to avoid additional leaks. Reassemble the parts before using the tool. This is a genuine OEM replacement part that is sourced directly from the manufacturer. It is sold individually. It is used in lawnmowers, lawn tractors, snowblowers, and wood chippers manufactured by Simplicity, MTD, Lawn-Boy, Cub Cadet, Toro, and Briggs & Stratton.

Fix engine stalling or rough running caused by fuel delivery issues. This float bowl mounts to your carburetor and regulates fuel supply to the engine.

Seals and protects engine connections to prevent oil leaks. Replace when cracked, brittle, or leaking. Verify fit with your engine model number.