AUTOBEST HP4427A

Product Details Attribute

Autobest High Flow Fuel Pumps are direct fit OEM pump replacements, so there are zero modifications required. If your vehicle has horsepower upgrades installed, your stock pump may not provide sufficient fuel to meet the increased performance demands. To combat this, Autobest's team of engineers have specially redesigned the stock pump so that it has an increase of up to 15% in FLOW RATE; now giving you the option to support your invested modifications with a boosted fuel flow rate.Ideal to support existing modifications, such as:

Air Intake System
Larger Fuel Injectors
Exhaust Headers
Phenolic Spaces
Free Flow Exhaust
Sport Tuned ECM/ECU
High Flow Air Filter
Throttle Body Change

Benefits of Purchasing a Fuel Pump & Housing Assembly

Purchasing just the fuel pump is less expensive up-front, but a complete Fuel Pump & Housing Assembly provides added benefits:

Extend Service Life: New strainer(s), hoses, sensors and other components help resolve problems that could be caused by more than just the pump.
Reduce Install Time: Since you don't have to disassemble the housing, which could lead to damage, replacement becomes a simple swap, dramatically reducing installation time.
Save Money: The cost of the assembly is often cheaper than buying the components individually, and means you only have to do the job once.

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:

ELECTRICAL ISSUES

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

BEFORE REPLACEMENT

FUEL CONTAMINATION

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

DURING REPLACEMENT

PUMP DAMAGE / OVERHEATING

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

AFTER REPLACEMENT

Additional Resources

In-Tank Electric Fuel Pump Installation Instructions

No Start Troubleshooting

Attention California Customers - WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov

Alternate/OEM Part Number(s)

OEM / Interchange Numbers: 16141184276, 16146752499, 16146766942

Warranty Information

Warranty Information:12 Months/12,000 MilesWarranty Details

CAPA CERTIFIED or NSF CERTIFIED

CAPA Certified or NSF Certified parts bear the seal of independent, third party organizations guaranteeing fitment and quality equal to original equipment. These parts may be required if your insurance company is paying for the repair.

Specifications
Package Contents	Pump & Module
Inlet Type	Strainer
Outlet Type	Hose Barb
Pump Type	Turbine
Inlet Size (IN)	0.629
Outlet Size (IN)	0.374
Internal or External	Internal
Maximum Free Flow (GPH)	66.815
Maximum Pump Pressure (PSI)	108.8
Minimum Free Flow (GPH)	57.73
Minimum Pump Pressure (PSI)	79.8