Walbro HD-21D Carburetor for Stihl 039, MS 310, 390 Chainsaws 1127 120 0605

Replacement carburetor from Walbro. These carburetors come stock on a great variety of outdoor power equipment, including professional chainsaws. Carburetors can be problematic with today's high ethanol content, and sometimes replacing the carburetor components with a carburetor kit will not fix the issue. A new carburetor will usually do the trick.