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Self-tapping screw. 5/16-18 inches by .75 inches.

Spacer, 1.25 x .75 x 1.00

MTD flange lock-nut, 1/4-20.

Two cycle engine fuel filter and line assembly. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Carburetor insulation gasket

Spring-extension

Small engine primer bulb with hose, large diameter. If the engine does not start the primer bulb may be defective and unable to draw additional fuel in to the carburetor to assist with starting the engine.

Air cleaner assembly

On-Off Switch

Fuel line. The fuel line allows fuel to travel from the fuel tank to the carburetor and from the primer bulb to the fuel system. If the fuel line is leaking, replace it.

Replacement clutch kit

Champion Spark Plug (RDJ7Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Small engine carburetor gasket. If the gasket is torn or damaged the engine may run rough.

Fuel filter & fuel line kit. If the fuel filter and fuel line are clogged, they will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Small engine recoil starter assembly with snow equipment handle. The recoil starter engages the drive cup on the flywheel to start the engine.
If you’re serious about your garden, a Yard-Man tiller, like the 21AB454B701 model, is what’s required to get the job done right. To keep your tiller on the job for this season and the next, you’re going to need genuine manufacturer replacement parts and that’s what you’ll find at Repair Clinic. From spark plugs and carburetor components, to roto-tines, throttle levels, and control cables, we can quickly ship you the specific MTD parts that match your Yard-Man tiller. To get started, enter the full model number of your equipment in our website’s search bar to see a complete list of compatible parts. You can then refine that list down to the exact part you want by using the part category and part title filters. Keep in mind, you can always contact our Customer Service Team at 1-800-269-2609 if you need some personal assistance in locating the right part for your Yard-Man equipment.
Of course, the support doesn’t end with having the right part in hand. Repair Clinic curates a comprehensive repair help library of instructional videos, articles, and model-specific schematics to guide you through troubleshooting the problem you may be experiencing and the step-by-step process to complete the repair. With Repair Clinic as your partner, your Yard-Man tiller will always be ready for action.