OTC 518530 Fuel Injection Gauge Hose Assembly with Relief Valve, for OTC 6550 6551 6552 Test Kits

OTC 518530 Fuel Injection Gauge Hose Assembly with Relief Valve, for OTC 6550 6551 6552 Test Kits

• OTC 518530 is a fuel injection gauge hose assembly with an integrated relief valve and drain tube. It is a replacement part for Bosch OTC fuel injection test kits 6550, 6551, and 6552 and is used with gauge 518483 to perform pressure release and fuel pump volume tests.
• Features:
  • Integrated relief valve and drain tube support safe pressure release and controlled fuel capture during testing.
  • Clear hose construction allows visual confirmation of fuel flow and clarity to speed diagnostics.
  • Designed to work with gauge 518483 to perform pressure and volume tests per Bosch OTC procedures.
  • Direct replacement for the hose assembly supplied in OTC kits 6550, 6551, and 6552 to restore full test capability.
• Specifications:
  • Manufacturer: OTC
  • Part Number: 518530
  • Product Type / Function: Fuel injection gauge hose assembly with relief valve and drain tube
  • Compatible Systems / Fitment: Replacement hose assembly for OTC fuel injection test kits 6550, 6551, 6552; used with pressure gauge 518483
  • Quantity: Single assembly
  • System Compatibility or Application: Performs pressure release and fuel pump volume tests when used with the specified gauge and adapters per kit instructions
  • Alternate Part Numbers / Cross References: OT518530; OTC 518530
• The Fuel Injection Gauge Hose Assembly with Relief Valve can also be referred to as fuel injection gauge hose assembly, relief valve drain hose, OTC test kit hose 6550 6551 6552, fuel pump volume test hose, and Bosch 518530 replacement hose.

OTC provides professional automotive service solutions and OEM grade diagnostic accessories for workshops and fleets, supporting accurate, safe testing of modern vehicle systems.

Q: Which kits does OTC 518530 fit?
A: It is the replacement hose assembly for OTC fuel injection test kits 6550, 6551, and 6552.

Q: Do I need a specific pressure gauge with this hose?
A: Yes. Use it with Bosch OTC pressure gauge 518483 as specified in the fuel injection test kit procedures.

Q: What does the relief valve do?
A: The built in valve enables safe pressure release and supports fuel pump volume tests, directing fuel through the attached drain tube.