HIPA (Pack of 2) Primer Bulb for Shindaiwa TK1 Carburetor TD18 TD24 TG33 Early STIHL FS80 Trimmer Replacement manufacturer part number: 4112 358 2500, 49043-2065 Used on STIHL FS 80 4112 series trimmer Fits Shindaiwa TD18 TD24 TG33 engine Package include 2pcs primer bulb