Suitable for the 3 Series, 5 Series, X5, X6, and E70, this hose corresponds to the 13537799993 diesel injector oil return overflow hose. It connects to the system, directs oil return, and connects the injector to the return line. Using compatible materials, it withstands the oil environment and adapts to operating conditions. It operates according to operating conditions, assists oil circulation, and ensures smooth overflow. It complies with industry standards, offers reliable quality, and is reasonably priced, ensuring guaranteed oil flow.