Parts for Briggs & Stratton 331800 (0036,0805): Head-Cyl / Dipstick / Tube 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.

The head gasket is a crucial part in any gas-powered engine that sits between the cylinder head and the engine block. It creates a seal for the internal combustion process that creates power from the engine. It ensures that oil and coolant travel throughout the engine, keeping it lubricated and cool. Designed to be long-lasting and durable, they can blow if an engine is too hot or even through simple wear and tear. This replacement head gasket is designed for use in small engines and lawn mowers. It is compatible with Cub Cadet, Simplicity and Briggs & Stratton machine. This is an OEM replacement part that is made of layered steel and elastomer. This gasket ships individually without any hardware.

The crankcase is a metal case over the crankshaft of an engine. It is essential to the operation of the engine as it shields the crankshaft and rods from any debris. It also ensures the pressurization of the chamber and helps to keep pistons and oil moving properly. The crankshaft gasket is part of what keeps the seal and allows the engine to function. It can wear with time or even become dry and cracked. It will cause oil leakage, smoke, and even engine failure. This is a genuine OEM crankcase gasket for lawnmowers, lawn tractors, and small engines produced by Toro, Cub Cadet, MTD, Briggs & Stratton, and Simplicity. It comes as an individual component.

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 loss of power, hard starting, or excessive smoke with this engine exhaust valve. Controls exhaust release in lawn mowers and small engines.

Engine won't start or runs rough? A faulty intake valve disrupts the air-fuel mixture. This valve controls airflow into the combustion chamber. DIY repair.

Replace a worn keeper valve if your small engine has valve train noise or poor compression. This small retaining clip secures valves in lawn mowers and outdoor power equipment.

Fixes loud tapping noise from engine. This camshaft operates the valves and includes tappets. Common wear part that affects engine starting and power.

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.

Engine flooding or not starting? This metal float needle valve regulates fuel flow in your carburetor. Controls gas intake and outflow in the fuel bowl.

This is a carburetor float that is used in a wide variety of lawn and garden equipment. The carburetor float is used in the engine to close and open the float needle valve. The main responsibility of the carburetor float is to open up to allow fuel into the carburetor when drained and to shut off the flow of fuel if the bowl is filled. If the float isn't working properly, the engine may not idle, the carburetor can flood, and the motor may stall while the tool is in use.Before replacing the carburetor float, put on work gloves and disconnect the spark plug wire. The carburetor will need to be removed from the equipment. The carburetor float and any other malfunctioning parts can be taken out and replaced with new components. While working on the parts, the jets can also be cleaned as a maintenance process.This carburetor float is sold as an individual item. It is an authentic OEM replacement part sourced directly from the manufacturer. The float is designed to be used with lawnmowers, lawn tractors, wood chippers, and snowblowers manufactured by Cub Cadet, Briggs & Stratton, MTD, Toro, and Simplicity.

When the fuel in a small, gasoline-powered engine moves up the fuel line, it must be mixed perfectly with air and together burn in just the right mixture and amount in order for engines to function properly. Because too much gas might be coming into the carburetor or because there might be a need for more gasoline than can readily move up the fuel line, the carburetor has a small device called the float bowl. The float bowl has a ready supply of gasoline for use as needed by the carburetor. To keep the gasoline in check while all this is happening, a device called the float bowl gasket keeps all the elements separate. With use and age, sometimes these gaskets crack or grow brittle and must be replaced. This causes air to leak into the mix and the engine will not operate smoothly. Replace this gasket with a genuine OEM replacement part like this one, manufactured to be exactly like the factory original that is being replaced. This part is compatible with engines sold by Toro, Simplicity, MTD, Briggs & Stratton, and Cub Cadet. Part sold individually.

Replace your engine fuel line if you notice fuel leaks, cracking, or hardened hoses. Connects fuel tank to carburetor. Common DIY repair for lawn mowers.

This is a replacement rocker arm adjuster that is specifically designed for use in select lawn mower engines. The rocker arm adjuster attaches to the rocker arm, which is responsible for opening and closing the valves on the engine responsible for injecting fuel and air. By doing this, it impacts the horsepower and performance of the engine. Over time, rocker arm adjusters can become lost or damaged. If they are not functional or are missing, the rocker arm will not be able to open and close the valves appropriately and the engine may not function at all. This genuine OEM rocker arm adjuster is manufactured to exact standards for Briggs & Stratton engines and is designed to offer an exact replacement for the part that came with the machine originally. This part can also be used as a replacement on select models from Toro and Lawn Boy, with over 150 machines that can use this rocker arm adjuster in total. The part is made of durable materials and sold as an individual unit. No additional hardware or parts are included. Never perform repairs on a hot engine and always wear gloves for hand safety.

This genuine Midwest Engine valve cap protects the internal workings of the small engine by keeping dirt, debris, pebbles, and any other small material picked up by the appliance out of the engine. The valve cap of a small engine outdoor appliance might have to be replaced if it suffers damage or if it is simply lost or misplaced, which could allow dirt and debris swept up into the air by the appliance to enter the infrastructure of the machinery and cause internal damage. Before more severe damage occurs, it is best to remove and replace the damaged valve cap. This replacement should be done before using the outdoor appliance again, as to not run the risk of further damage. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This valve cap is compatible with the following brands: Midwest Engine, Briggs & Stratton, Toro, Simplicity, Lawn-Boy, MTD, Craftsman, and Cub Cadet. It can be used as a replacement part for the small engines of outdoor appliances such as lawn tractors, lawn tractors, snowblowers, wood chippers, leaf blowers, tillers, and edgers. This part is sold individually.

Inline fuel filter strains water and debris from fuel before reaching the combustion chamber. Replace if engine runs rough or won't start. Verify fit.

Control wire casing for lawn and garden engines. Protects and guides throttle or choke control cables. Replace if cracked, split, or missing.

Control wire for lawn and garden engines. Connects controls to engine throttle or choke mechanisms. Replace if frayed, broken, kinked, or missing.

Metal mounting screw for lawn and garden engines. Secures components together throughout the equipment. Replace when stripped, rusted, or missing.

Metal washer for lawn and garden engines. Installs between engine components to provide proper spacing and prevent wear. Replace if worn, missing, or damaged.

Replacement air filter for lawn mower engines. Replace when clogged or damaged to maintain optimal engine performance and protection. Verify fit with your 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.

Engine won't start or runs rough? A worn spark plug boot can cause misfires and weak ignition. This boot connects your spark plug to the coil securely.

Small but essential hardware nut for lawn and garden engines. Secures components in place when used with washers and screws. Replace if stripped or worn.

This screw is designed to be used on all sorts of lawn and garden equipment. The metal screw is durable and attaches to the muff guard bracket to keep it in place and stable while the equipment is being used. This screw can become damaged through overuse or wear and tear. It can also break or become stripped, which will require it to be replaced.Visually inspecting the area with the muff guard bracket is connected to the rest of the equipment will give information about whether the screw is broken or damaged. The screws can also be cleaned to be more visible so small problems are easier to pick up on. Sometimes the screws can become loose, which is another situation where a replacement is needed. Simply use a screwdriver to take out the old screw and replace it with a new one.This screw is a genuine OEM replacement part that is directly sourced from the manufacturer. It comes as an individual part. The screw can be used on snowblowers, lawnmowers, lawn tractors, tillers, pressure washers, leaf blowers, edgers, generators, wood chippers, and log splitters made by MasterCut, Simplicity, MTD, Snapper, Lawn-Boy, Wheel Horse, Cub Cadet, Toro, Craftsman, and Briggs & Stratton.

Replacement wiring harness for lawn and garden engines. Restores electrical connections when original harness is damaged, frayed, or corroded.

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.

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 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.

Keeps dirt and debris out of your small engine. Replace when dirty or damaged to maintain performance. Confirm fit with your engine model number.

Fix oil leaks from your rocker cover with this valve cover gasket. Creates an air-tight seal between engine and valve cover. Easy DIY replacement part.

This authentic OEM replacement push rod connects to the camshaft on small or medium sized gas-powered lawn tractor engines, and as the camshaft turns, the push rod transfers that motion into the valves. Without a functioning push rod, the valves will not open and the engine will not work. Push rods also act as transferring units that bring oil through the valves and into the camshaft. If these parts start to stick due to poor lubrication, push rods can bend and will no longer work properly. It is also possible, though rare, for a push rod to bend due to general metal fatigue over time. To identify a bent push rod, listen for a ticking sound in the engine and look out for any slipping gears. Accessing the push rods will mean taking apart the camshaft and valves and may require the user's manual. This replacement part is sourced from its original manufacturer and is compatible with Craftsman and Briggs & Stratton lawn tractors. It ships individually.

This rocker arm is a genuine Midwest Engine part. A rocker arm is a vital part of an internal combustion engine that controls the intake and exhaust valves in order to direct power from the engine to the wheels, setting the appliance, such as a lawn tractor, wood-chipper, snowblower, or lawn mower in motion. Natural wear and tear from extended use over a long period of time can cause an internal combustion engine to malfunction or fall into disrepair. The longer a rocker arm is in use without replacement, the more likely it is to be subject to damage. This will require a replacement rocker arm. Signs of weakening infrastructure for which the rocker arm might be responsible can include unexplained clicking noises, stalling engines, lit-up check engine lights, and clear visual signs of deterioration on or around the rocker arm itself. Always wear gloves when handling, repairing, and operating outdoor equipment.This rocker arm replacement part works with engines, lawn tractors, wood chippers, snowblowers, and lawn mowers from brands Briggs and Stratton, Toro, Cub Cadet, Lawn Boy, Craftsman, MTD, and Simplicity.

This push rod guide is designed for use with various lawn and garden equipment motors. It has a construction of plastic and metal that fits into the cylinder head assembly. The purpose of the push rod guide is to secure the push rods and keep them in the proper position. Sometimes these guides can break, become weak, or be covered in residue and need to be replaced.If there are issues with the push rod guide, remove the spark plug before removing the air cleaner assembly, oil fill tube, fuel tank, and blower housing. Any other parts in the way like muffler guards, rewind starters, and carburetors should also be removed. Take the screws off the valve cover and remove them before pressing the spring retainer and spring over a valve. At this point, remove the push rod guide and replace it.This pushrod guide is a genuine OEM replacement part sourced directly from the manufacturer. It comes as a single part. The guide is compatible with lawnmowers, wood chippers, and snowblowers manufactured by Simplicity, Briggs & Stratton, MTD, Craftsman, Lawn-Boy, Toro, and Cub Cadet. A wrench and socket set are useful for making the replacement.

This brush retainer is part of the starter motor on many types of lawn and garden machinery. It comes with both the retainer and a set of four brushes. The main job of the brush retainer is to hold a set of carbon brushes against the commutator bars located on the armature. If the brush retainer is worn, damaged, or improperly seated, it can cause problems with the equipment. The starter motor will not be able to get the proper amount of current from the battery.If the brush retainer might be causing problems, a visual inspection can be performed. A damaged brush retainer can wear down to the wire lead and become burned, pitted, or cracked. When the brush retainer is worn out, it can decrease engine performance, reduce braking, and cause the motor to lose power. This brush retainer is an authentic OEM replacement part sourced directly from the manufacturer. It is sold as an individual part. The retainer is made to be used with lawnmowers, snowblowers, tillers, and wood chippers created by Briggs & Stratton, Craftsman, Toro, Cub Cadet, Lawn-Boy, Snapper, MTD, and Simplicity.

Replacement mounting screw for lawn and garden engines. Secures engine components and housing. Needed when original fastener is stripped, lost, or damaged.

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