Feature:1. Applicable Model: This injector return pipe fits perfectly with the original engine, suitable for Cummins 4B3.9 6A3.4 6B5.9 pipeline.2. Standard Performance: The oil return pipe meets the original car design requirements, matches well, and has strict requirements from materials to workmanship, so you can use the return pipe with confidence.3. OE Number: The OE number of this return line is 3960453 and 4931027, please make sure you can match your engine before you buy.4. Stainless Steel Material: This oil return pipe is made of stainless steel, which is wear resistant, rust proof and anti corrosion.5. Easy Installation: This return tube is easy to install and perfectly sized to fit your engine, making return pipe the perfect replacement part.Specification:Item Type: Injector Fuel Rail Return PipeMaterial: Stainless steelOEM: 3960453, 4931027 Application: For 6D102, for Cummins 4B3.9 6A3.4 6B5.9 pipeline.Package List:1 x Injector Fuel Rail Return Pipe