More Information for GMB 5991230
{Alternate Inventory Numbers: 599-1230}
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GMB 5991230  
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GMB 5991230 Specifications
Fuel Sending Unit IncludedNo
Fuel TypeGasoline
Maximum Pressure44
Maximum Flow Rating135
Includes Strainer
Fuel Pumps are essential to delivering the required amount of fuel from the fuel tank to the engine. Each GMB Fuel Pump goes through 3 points of inspection; at the development stage, manufacturing stage, and prior to shipment to ensure you receive a high quality pump that delivers a long service life.

Features & Benefits:
  • 100% Pressure and Flow-rate tested in-house
  • Durability tested during development for longer life
  • Designed to reduce noise

Prevent Premature Fuel Pump Failure

Preventing premature fuel pump failure is far less expensive and time consuming than continuing to replace the pump. There are three common causes for premature fuel pump failure:

Poor electrical connections will mimic symptoms of a failed pump, sometimes resulting in unnecessary replacement. Before replacing the pump:
  • Use a Fuel System Tester to test pump pressure is within expected range
  • Use an Electrical Tester to test for bad wiring, burnt or corroded connectors
  • Check / Replace faulty Fuse(s) and Relay


Dirt, rust or debris in the fuel can clog strainers and stick to internal pump components. When replacing the pump:
  • Replace Fuel Filter or Fuel Strainer
  • Empty and clean the tank with Fuel Tank Cleaner
  • Fill tank with fresh, uncontaminated fuel of appropriate grade


Running low on gas causes your fuel to heat up quicker, and your pump to work harder. After replacing the pump:
  • Maintain at least 1/4 tank of fuel and use a Fuel Additive / Conditioner to keep pump cool and lubricated
  • If vehicle is stored without use, drain tank to prevent pump corrosion from fuel oxidation


Additional Resources

When Is It Time to Replace Your Fuel Pump?
OEM / Interchange Numbers: 2F1Z9H307FB, 3F1Z9H307AB, 4F1Z9H307AB, 5L8Z9H307A, 6F1Z9H307A, 6S4Z9H307A, 7L8Z9H307B, 8L8Z9H307B, 8L8Z9H307C, 8M6Z9H307A, F81Z9H307CA, F81Z9H307HA, P2658, XR81586, XR822164, XR824989, XW4Z9H307AA, YW4Z9H307BB

GMB Warranty Information:
12 month/12,000 miles