The STIHL SV41286407301 Pinion Set is a genuine OEM replacement component designed for various STIHL outdoor power equipment models. This essential part ensures proper power transmission within the machine's drive system, maintaining optimal performance and reliability. Engineered to STIHL's rigorous standards, it provides a precise fit and durable operation for compatible models including FS 94 R, KM 94 R, HL 94 K, HL 94 C-E, HT 103, HT 105, HT 133, HT 135, KMA 130 R, KMA 135 R, and KMA 135.