Primer Bulbs For Weed Eaters
Shop replacement primer bulbs for weed eaters when a cracked or leaking bulb makes starting your string trimmer a chore. Check compatibility with your trimmer’s make and model, and compare the bulb’s size and mounting style before choosing a replacement.
Best Of FAQ
A primer bulb is a flexible, pressable part of the fuel system on many gas-powered weed eaters. Depending on the engine design, it sends fuel toward the carburetor or draws fuel through the carburetor and back to the tank.
No. Primer bulbs are found on many gas-powered weed eaters, but some gas engines have a different starting setup. Battery-powered and corded electric weed eaters don’t have a gasoline fuel system, so they don’t need primer bulbs.
You’ll often find the primer bulb near the carburetor or air filter housing. Some models have a separate bulb connected by fuel lines. Your owner’s manual can point out its location on your machine.
A primer bulb moves fuel through part of the fuel system when you press it. A choke lever changes airflow through the carburetor to create a richer fuel-and-air mixture for starting. Many gas-powered weed eaters have both.
Start with your weed eater’s brand and full model number, then check its parts diagram for the primer bulb’s part number. Some models call for a separate bulb, while others list it as part of a larger assembly. Match the listed part number and compatibility details before choosing a replacement.