This line basically takes the unused fuel – the fuel that the engine didn't actually burn – and sends it back from the fuel rail to the gas tank. It’s a closed loop system, so any fuel that doesn’t get used gets recirculated. It's a simple job, really, just a pipe carrying fuel, but it's a crucial one. Think of it as part of the overall fuel delivery system. The fuel pump sends fuel to the engine under pressure, the fuel rail distributes it to the injectors, and this return line sends the excess back. It keeps the pressure regulated and makes sure everything's working smoothly. It connects the fuel rail to the fuel tank, completing the fuel supply circuit. It’s important because if this line fails, you'll likely see performance problems. A leak will cause a drop in fuel pressure, and that means the engine won’t get the fuel it needs. You’ll notice if it’s leaking—you'll smell fuel, or possibly see it. Even a small pinhole leak can cause big issues over time, potentially damaging other components. Plus, it’s a fire hazard, obviously. You can find replacements for these pretty easily, Fixparts Online has a good selection, but it’s one of those parts you really want to keep an eye on. A failing return line can cause rough idling, loss of power, and ultimately, a breakdown. It acts like a shield, protecting the whole fuel system from pressure imbalances. Better than the rest: Fuel Return Line (MPN 0928402213) includes a 12-month warranty!

About Bosch

Robert Bosch GmbH is a global leader in automotive technology, offering high-quality parts and systems that enhance vehicle efficiency, safety, and reliability.

Why Choose Bosch?

• Bosch parts are known for lasting a long time, so you won't have to replace them often. • They're made with high-quality materials and tested thoroughly, meaning they perform reliably. • Bosch offers a wide range of parts, so you're likely to find what you need for almost any vehicle. • Mechanics and drivers around the world trust Bosch – it’s a name you can depend on. Bosch delivers excellence, FixParts Online delivers to your door.