BMW M57N2 Fuel Injector Leak-Off (Return) Hose TOPRAN 504 020 / OE 13537792870

TOPRAN 504 020 – Fuel Injector Leak-Off / Return Hose with Valve

TOPRAN Part Number: 504 020
OEM References: 13537792870, 13537799869, 13537799962

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Fuel Injector Leak-Off (Return) Hose for BMW M57N2 Diesel Engines

High-quality TOPRAN fuel return hose assembly designed for BMW Common Rail diesel engines. This complete leak-off hose includes the integrated valve and provides the correct low-pressure fuel return from the injectors back to the fuel system, ensuring reliable operation and preventing diesel leaks. Overall hose length is 1240 mm.

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Fits BMW Models

Suitable for many BMW vehicles fitted with M57N2 3.0L Common Rail diesel engines, including:

• BMW 3 Series E90, E91, E92, E93
  • 330d
  • 330xd
  • 335d
• BMW 5 Series E60, E61
  • 530d
  • 530xd
  • 535d
• BMW 6 Series E63, E64
  • 635d
• BMW 7 Series E65
  • 730Ld
• BMW X3 E83
  • 3.0d
• BMW X5 E70
  • 3.0d
  • 3.0sd
  • xDrive30d
  • xDrive35d
• BMW X6 E71
  • xDrive30d
  • xDrive35d

Always confirm compatibility with your VIN before ordering.

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Replaces OEM Part Numbers

• 13537792870
• 13537799869
• 13537799962

Cross References

• TOPRAN 504 020
• DR.MOTOR DRM2003
• VAICO V20-3606
• METZGER 0840075
• MAXGEAR 15-0096
• ESEN SKV 54SKV277

 

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Specifications

• Complete injector leak-off hose assembly
• Integrated non-return valve
• Overall Length: 1240 mm
• For Common Rail diesel injection systems
• Direct replacement
• Premium aftermarket quality

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What's Included

• 1 × Complete fuel injector leak-off / return hose assembly with valve

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Common Symptoms of a Failed Leak-Off Hose

• Diesel smell in the engine bay
• Fuel leaking around injectors
• Wet injector return lines
• Hard starting
• Air entering the fuel system
• Reduced fuel system efficiency

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Fitment Summary

✔ BMW M57N2 Common Rail Diesel Engines
✔ Complete injector return hose with integrated valve
✔ Direct replacement for BMW OEM fuel return line
✔ Premium TOPRAN quality