General description Replacement carburetor designed for Stihl hedge trimmers, compatible with models HS81, HS81R, HS81RC, HS81T, HS86, HS86R, and HS86T. This carburetor replaces OEM part number 4237 120 0606 and is made from durable alloy material. Technical specifications Dimensions: approx. 9 x 7.5 x 5 cm / 3.5 x 3.0 x 2.0 inches Carburetor type: C1Q-S225