General description Laser Tools Fuel Injection Pump Socket 5471 is a multi-spline socket designed specifically for Mercedes-Benz injection pumps. It is compatible with various Mercedes-Benz engine codes, making it an essential tool for automotive professionals and DIY enthusiasts. Technical specifications Socket type: Multi-spline (33pt) Length: 56mm Internal dimensions: Peak-peak 18mm, trough-trough 19.3mm Compatibility and accessories Compatible with Mercedes-Benz engine codes: 601, 602, 603, 605, 606, 615, 616, and 617