Sears Engine Parts

A hex screw fastens and holds two components together. It has a hexagonal head and features threading starting underneath the shoulder down to the tip. Its all-metal construction offers rigidity and longer lifespan. It is also threaded, so you can conveniently loosen or tighten in position. It measures 1/4-20 x 0.5 inch and comes in brass or gold color. Take note that this replacement hex screw may beused in different locations of a machine. Double check the device’s model number for compatibility. To install this hex screw, you will need a hex wrench or a hex socket. This hex screw is a replacement made by MTD. This screw/bolt may be used on lawn mowers, snowblowers, tillers, string trimmers, leaf blowers, edgers, chainsaws, pole pruners, log splitters, or wood chippers made by Craftsman, Toro, Cub Cadet, Ryobi, Troy-Bilt, Husky, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, or MasterCut. This OEM hex screw is sold individually.

The comprehensive carburetor kit contains all of the parts and components necessary to make almost any repair to a carburetor on the makes and models mentioned. A carburetor is a part that mixes air and fuel within any combustion engine. Without adequate or ideal air to fuel mixtures, the engine may misfire or run poorly. It is not unusual for older or heavily used engines to need carburetor repairs. This is a carburetor kit for lawn tractors, lawnmowers, and small engines made by Tecumseh, Toro, Lawn-Boy, Cub Cadet, and MTD, among others. It ships individually.

The primary function of a carburetor is to mix fuel and air in the right ratio. Fuel enters the carburetor through the fuel inlet fitting and then to the float bowl which delivers fuel to the other circuits. From there, the fuel goes to the needle valve, which is actuated by the float. When there is insufficient fuel, the float will stay down, keeping the valve open. Once the chamber has enough fuel, the float will go up and close the valve. A failed float bowl may leak or have too many dirt particles deposits that impede fuel flow. Luckily, you can easily replace a busted float bowl. This part is a genuine OEM Tecumseh 631867 float bowl replacement. You’ll have the assurance that this replacement is manufactured according to Tecumseh’s highest standards. It is compatible with mowers, tractors, and snowblowers from Toro, Cub Cadet, Lawn-Boy, MTD, and Tecumseh. This part is sold individually.

This air filter is manufactured by Tecumseh and is an OEM replacement part for select compatible engines on lawn and garden equipment. The air filter system in an engine is designed to help ensure maximum airflow and remove dirt and debris from the air as it is entering the carburetor and the engine. This filter is made of durable plastic and composite paper materials and includes metal screening to help catch more debris and ensure the filter holds its shape. The air filter will collect particles of dirt and debris, and over time it can become clogged from regular use. Air filters should be replaced regularly as a part of routine maintenance, and this replacement part will do the job for models that take the filter. Always disconnect the spark plug when performing maintenance. Replace air filters annually or as needed and choose genuine OEM parts like this filter for the best results. This OEM filter can be used with several different engines made by Tecumseh, including 7, 8, and 10 HP models. This part may be used on generators, wood chippers, or other small engines from Briggs & Stratton, Craftsman, Tecumseh, MTD, and Simplicity.

The float shaft and pin are a genuine replacement for select Tecumseh carburetors on small lawn and garden equipment engines. The float shaft and pin are responsible for maintaining the fuel level within the carburetor. Over time because of repetitive motion, the float pin and shaft can break or become damaged, which will stop the carburetor from functioning properly. If the carburetor cannot function, the engine will not be able to perform. If left unattended, the engine and carburetor could fail completely or bigger issues could occur. Replacing the float is essential to getting the equipment back in order. This genuine float shaft and pin is designed for use on machines from Tecumseh, Poulan, Husqvarna, Lawn Boy, Cub Cadet, MTD, and Craftsman, and is compatible with a number of models. The fuel system should be drained and the engine should be cool before any engine repairs are started. Always wear gloves for hand protection. This float shaft and pin are made of durable materials and sold as a unit. No additional hardware or parts are included.

Carburetors must have tight seals to prevent too much air from getting into the carburetor at one time. If there are issues with a welch plug, it could cause an engine to lose power or to run rough. The plug might have lost its seal, it could have cracked, or it could have become lost. Sometimes, the vibration of the engine is enough to cause a plug to fall out if it is not tightly sealed. A loose fit will cause problems with the flow of fuel. This genuine OEM welch plug is sold individually and can help to seal your carburetor so your engine retains power. The part can be used with a range of lawn tractors, lawnmowers, snowblowers, and small engines. Compatible brands include Tecumseh, Lawn-Boy, Toro, Craftsman, and MTD.

This is a genuine throttle return spring used on select small engines. The throttle return spring is part of the throttle system. It is attached to the throttle cable and the throttle body or carburetor, and is responsible for pushing the throttle closed when the gas is released and opening the throttle when the throttle trigger is engaged. If the spring is faulty, the throttle will not be able to open and close properly. This can affect the machine's ability to operate and even prevent it from operating at all if the throttle remains closed and no power can get through. A replacement should be done as soon as possible to prevent further damage to the engine. This genuine OEM throttle return spring is manufactured by Tecumseh, and compatible with machines from Toro, Husqvarna, MTD, Lawn Boy, and Tecumseh. There are over 150 models that can use this replacement part. It is made of durable metal and sold as an individual part. This throttle return spring is a simple replacement that should only take a few minutes. Be sure to use care when replacing the spring because it can be susceptible to damage under excessive pressure or strain.

This is a main nozzle tube replacement for use with a range of different types of outdoor equipment and small engines. Another name for the main nozzle tube is the fuel jet. The fuel will turn into a vapor and then travel through the main nozzle in a vacuum process. This draws the air into the Venturi pipe. The main nozzle tube is made from plastic, and it can eventually start to break down and wear away. When this happens, it will no longer be efficient. Owners might find that the engine is not running smoothly, or that it is difficult to start the engine. Replacing this element of the system could be what is needed. This is a genuine OEM main nozzle tube replacement. It is sold individually and works for various models of lawn mower, snowblower, tiller, pressure washer, generator, log splitter, wood chipper, and other small engines. Compatible brands include MTD, Toro, Cub Cadet, Lawn-Boy, Craftsman, and Briggs & Stratton. Owners should always ensure they are getting the correct replacement for their make and model.