This is a genuine Echo replacement part. It is sold individually. By pressing the bulb it will purge the air from the carburetor. Then fuel will come up from the fuel tank through the fuel line then into the carburetor. The excess fuel will be forced back into the tank through the fuel return line. Over time the primer will lose its elasticity or crack and need to be replaced.
Home Depot Number: HD11826485
Manufacturer Part Number#:
P005003120
Manufactured by:
Echo
for Echo, Shindaiwa, Little Wonder
Why buy the real thing?
OEM stands for Original Equipment Manufacturer. Simply put, this means that the company who made your appliance is also supplying the replacement part for it.