The Mercedes 190E 2.5 16V Cosworth Oil Pump Repair Kit by SWAG is a high-quality replacement part for your vehicle's engine. This oil pump gear set (Manufacturer Part Number: 5.09.3100) is designed to ensure smooth and efficient operation, with a reference OE/OEM number of A1021800504 for easy identification. Perfect for maintaining the performance of your Mercedes, this kit is a reliable and durable solution for any engine repair needs.