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Compatibility
This part will fit the following 32 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
MTDMTD 1P51NUA - MTD 79cc Engine1P51NUA General Assembly
MTDMTD 1P51RU - MTD 79cc Engine1P51RU General Assembly
MTDMTD 1P57RT - MTD 99cc Engine1P57RT General Assembly
MTDMTD 1R61DT - MTD 132cc Engine1R61DT General Assembly
MTDMTD 1R61N0 - MTD 132cc Engine1R61N0 General Assembly
Description
The Primer Bulb is a small round pliable plastic bubble or button located on the carburetor that when pressed draws fuel through the fuel line into the carb. Over time, exposure to chemicals in the fuel, grit from the fuel tank, and heat from the sun can harden the plastic primer bulb causing it to get brittle and crack. Home users often replace the primer bulb during their annual tune-up. Replacing the primer bulb is usually very simple and requires little more than a screwdriver.