These washers create a tight seal where the fuel line connects to other components, usually the fuel rail or the fuel filter. They basically prevent fuel leaks. They're often made of a material that's resistant to gasoline, so they don't degrade quickly. Think of it like this – your fuel system is under pressure. Fuel needs to get from the tank to the engine without escaping. This washer sits right where the line connects, acting like a shield between the metal fittings. It fills in any tiny imperfections so fuel can’t squeeze through. Each connection point will usually have one or more of these. Leaks are obviously a big problem. Fuel is flammable, so even a small leak creates a fire hazard. Beyond that, a leak messes with your engine’s performance. You’ll notice if you have a leak—you might smell fuel, see it dripping, or your car might run rough or have trouble starting. Replacing these washers during fuel system maintenance is a cheap way to prevent bigger headaches down the road. You can find a good selection of these at places like Fixparts Online, and it’s generally a good idea to replace them every time you disconnect a fuel line. They’re small and inexpensive, so it’s just good practice. Backed by experts: Washer (MPN 057130219A) comes with a 12-month warranty!

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• Get parts made specifically for your VW, ensuring a perfect fit and reliable performance. • Volkswagen parts are quality-tested to meet high standards, so you can drive with confidence. • Using genuine VW parts helps maintain your vehicle’s value. • We have a wide selection of parts, from everyday maintenance items to more complex components. FixParts Online – Your Trusted Source for Quality Volkswagen Auto Parts.