HIPA C1U-H47 Carburetor for Homelite K100 K300 K400 ST2527 ST2537S UT-15164 UT-15169 UT-20758 UT-20760 UT-20769 Trimmer Replacement manufacturer part number: C1U-H47 Package include 1 carburetor, 2 primer bulb, 2 gasket