The Husqvarna 505199903 Oil Pump Set is a genuine OEM replacement part designed for specific Husqvarna chainsaw models. This essential component ensures proper lubrication of the saw chain and bar, critical for efficient cutting and extending the life of your equipment. Manufactured to Husqvarna's high standards, it guarantees reliable performance and a precise fit. Replace a worn or damaged oil pump with this authentic set to maintain your chainsaw's optimal functionality.