The Carburetor Primer Bulb is a genuine TrenchBadger replacement part. Replace your primer bulb to ensure you get the right amount of fuel to your TrenchBadger Pro carburetor. The handheld TrenchBadger Pro Series is a portable, mini trencher designed for fast installations. Its lightweight design makes it easy to transport and handle (starting at only 22 lbs). The powerful, commercial engines and carbide-tip excavating blades offer full authority to dig up to 12" through the toughest soils and roots. Our V-Trench design leaves a clean, accessible trench (up to 6" wide) - making it easier to get the job done right!