0445130166 Bosch Fuel Return Line

The Fuel Return Line from Bosch (MPN: 0445130166) is sourced from Czech Republic and has supplier-listed dimensions of 9 x 289 x 289 mm. It is typically used within the Engine Parts > Fuel Supply > Fuel Lines category of automotive replacement parts. Dimensions are provided by the supplier and may include packaging dimensions. Fuel lines are rigid and flexible tubing conveying fuel from the fuel tank to the engine. They are routed throughout the vehicle’s chassis, including undercarriage and engine bay, and are constructed from materials compatible with gasoline, diesel, and ethanol blends – typically steel, nylon, or specialized polymers. Connections utilize quick-connect fittings, compression fittings, or flared ends to ensure leak-free operation under pressure. Modern fuel lines often incorporate protective sleeves or coatings to resist abrasion, heat, and chemical exposure. Failure modes include corrosion, cracking due to age/heat cycling, and leakage at connection points.