The STIHL 41404001305 Ignition Module is a genuine OEM replacement part designed for various STIHL outdoor power equipment models. This essential component ensures reliable engine ignition, providing consistent performance for your trimmer or brushcutter. It is compatible with STIHL FS38, FS45, FS46, FS55, HL45, HS45, and KM55 series machines, including their C, L, R, RC, and T variants. This module measures approximately 88.9 mm in length, 63.5 mm in width, and 38.1 mm in height, with a weight of about 0.113 kg.