The part with OE number 191611931a is a fuel filter used in Volkswagen and Audi vehicles. Here are the details:
Product Details: OE Number: 191 611 931 A Compatible Vehicles: Commonly fits older Volkswagen models such as the Golf, Jetta, and Passat, as well as some Audi models from the late 1980s and early 1990s. Type: Inline fuel filter. Material: Typically made from a combination of metal and filter media designed to trap contaminants and debris from the fuel. Position: Installed in the fuel line, usually between the fuel tank and the fuel pump or engine, depending on the vehicle's layout. Functions: Fuel Filtration: Removes impurities and debris from the fuel before it reaches the engine, helping to ensure smooth engine operation and prevent damage. Engine Protection: Helps maintain fuel system cleanliness, preventing clogging of fuel injectors and other engine components. Performance: Contributes to optimal engine performance and fuel efficiency by providing clean fuel to the combustion system. This part is crucial for maintaining the performance and longevity of the vehicle’s fuel system.