The Rehlko KD425‑2 (KD425/2) is a compact air‑cooled, 4‑stroke diesel delivering 13 kW (17.4 hp) at 3600 rpm and 42 Nm at 2200 rpm. With electric start and direct injection, it’s designed for dependable power in OEM machinery and industrial equipment where simplicity, durability, and straightforward servicing are priorities.