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Compatibility
This part will fit the following 337 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
MTDMTD 161-JU - MTD 123cc Engine161-JU General Assembly
CraftsmanCraftsman 247.116830 (31A-2M5E799) - Craftsman Snow Thrower (2011)161-JWA-11 Carburetor
HuskeeHuskee 31A-2M1E731 - Huskee Snow Thrower (2011) (Tractor Supply)161-JWA-11 Carburetor
MTDMTD 161-JWA-11 - MTD Engine161-JWA-11 Carburetor
Yard MachinesYard Machines 31A-2M1E752 - Yard Machines Snow Thrower (2014)161-JWA-12 Carburetor
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.