YINETTECH 2Pcs Heater Fuel Hose Connector Adapter 251888800102 4mm to 6mm Fuel Pipe Line Adapter Compatible with Eberspacher Compatible with Webasto

["Function: Connects different diameter fuel hoses, allowing a secure transition between 4mm and 6mm fuel lines in heater systems.","Application: Used in fuel delivery systems of parking heaters to ensure stable fuel flow between tank and heater unit.","Compatibility: Compatible with Eberspacher, Compatible with Webasto heater systems using 4mm and 6mm fuel pipes and matching OE reference 251888800102.","Structure: Features an 8mm outer diameter with stepped ends for firm hose fitting and reduced risk of fuel leakage.","Usage Note: Suitable for heater maintenance and repair, helping restore proper fuel line connections without replacing the full hose assembly."]