H701WK Fuel filter

Hengst H701WK spin-on fuel filter for MAN trucks, equivalent to OEM part 51125036000. The filter removes particulate contamination and free water from diesel fuel before it reaches the injection system, protecting high-pressure injectors and pump components from abrasive wear and corrosion damage. Compatible with multiple MAN TG-series applications — confirm fitment against your vehicle's parts catalogue. Change at the manufacturer's recommended service interval or sooner if fuel quality is poor, water is detected in the separator bowl, or power loss and rough running are present — a blocked filter reduces rail pressure and directly affects engine performance. Hengst filters meet or exceed OEM filtration efficiency ratings and are manufactured in Germany. When fitting, always lubricate the new O-ring with clean diesel before installation and hand-tighten only. Prime the filter with clean fuel before starting the engine to avoid a prolonged dry-start on the injection pump. Dispose of the old filter as hazardous waste in accordance with local regulations.