This aircraft ignition component is a Slick 4371 series magneto configured for four‑cylinder engines and used to provide spark for engine ignition. It is designed for left‑hand rotation with an impulse feature for installation on compatible Lycoming engines in the O‑235, O‑320, O‑360, IO‑320E1B, IO‑320E2B, AEIO‑320E1B, AEIO‑320E2B, AEIO‑360B1C6, and H1A families, where it serves as one of the primary engine magnetos.