MTD Trimmer Parts

Carriage Bolt, 5/16-18 x .75 This carriage bolt fits a variety of tools and is sold individually. The square area under the head of the bolt is created to fit into a square hole in your tool. The hole makes sure to restrain the bolt and prevents it from turning when the nut is secured or tightened.

Lawn Mower Ground Drive Belt This is a drive belt and it is used on various outdoor lawn equipment. This part is made of rubber and is sold individually. It measures to be 35.80 inches by 0.5 inches. This part drives the transmission, which propels the wheels on your machine. Pro tip, clean off the pulleys before installing this part for a longer lifespan. We recommend inspecting your belt periodically as they wear out quickly, depending on usage.

Fuel Return Line This is a fuel return line, and it is used with various outdoor lawn equipment. Fuel travels through the return line into the carburetor, and from the primer bulb/pump into the fuel system. The line returns the extra fuel back into the tank. This part will crack and become brittle over time. If your fuel line is leaking, you will need to replace it. Before you begin repair work on your equipment make sure you drain the fuel from the tank, and remove the spark plug.

Bump Head Knob Assembly This bump knob assembly fits lawn and gardening tools, usually trimmers. This part bumps on the ground to advance the cutting line from the spool. With time and use, this part can wear out easily. It is recommended to order an extra knob assembly to always have on hand. Refer to the manual provided by the manufacturer for installation instructions and safety practices.

Bell. Wash. .340 I.D. x .872 O.D. This is a Belleville washer, and it is used with various lawn and garden equipment around your home. This part has an inner diameter of 0.340 inches and an outer diameter of 0.872 inches. The convex shape of the Belleville washer acts like a spring, which is why they are often used in high load bearing situations.

Shear Bolt 5/16-18 x 1.5

Primer and Hose Assembly This is a primer and hose assembly, and it is used on various lawn equipment. The assembly comes with two parts. The first is the hose which is almost 5 inches long, and less than a 1/4 inch thick. The second part is the primer bulb or primer pump, and that is 2 inches long, and 1 inch wide, with a round bulb head. Together, the primer and hose assembly fill the carburetor with fuel to give your machine a quicker start. After time, your hose will crack and your primer will lose elasticity. Both will have to be replaced when this happens. Before starting this repair make sure to drain the fuel from the tank, and remove the spark plug.

Fuel Line and Filter This fuel line filters the fuel in the tank as it pushes into the carburetor by the primer bulb. If your carburetor is not getting fuel, ports get clogged, or the fuel line is leaking, then replacing this part will solve these problems. It is important to replace it as soon as damage is noticed because clogging can result in your engine not starting. For this repair, you will need the following tools: torx/Phillips drivers, long screwdriver, long-nosed pliers, long screwdriver, cutters or scissors, and two-cycle engine oil. For this repair, first remove the retainer ring from the fuel line and insert it through gas cap opening. Next, thread the fuel line through the hole in the bottom of the fuel tank and pull the line through to firmly place it against the tank wall. For the last steps, put the retainer ring on the fuel line and press the ring firmly against the external side of the fuel tank wall. Lastly, attach it to correct line on the carburetor.

Flat Washer

Washer-Lock 5/16 This lock washer is used to resist the loosening of bolted joints. Repair tip: It is difficult to install the lock washer in a tight place or when the bolt/screw is pointing down. This lock works with the following appliances: Lawn tractor, tiller, chipper, shredder, lawn mower, snow blower, leaf blower/vacuum, log splitter, edger, hedge trimmer, and engine. Refer to the manual provided by the manufacturer for repair instructions.