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Delphi FG1666 Fuel Pump Module Assembly - Left
| Brand | Delphi FG1666 |
|---|---|
| Position | Left |
| Average Current Draw | 10 |
| Average Flow Rating | 21 |
| Fuel Level Sender Assembly Included | Yes |
| Fuel Type | Gas |
| Gasket Or Seal Included | No |
| In Tank or External | In Tank |
| Inlet Type | Strainer |
| Internal Or External Strainer | External |
| Item Grade | Standard Replacement |
| Lock Ring Included | No |
| Maximum Pressure | 73.0 |
| Outlet Outside Diameter | 0.375 |
| Outlet Quantity | 1 |
| Outlet Type | Quick Connect |
| Package Contents | Fuel Pump Module Assembly w/Float Arm, Seal, Instruction Sheet |
| Pump Type | Electric |
| Regulator Included | No |
| Resistance Ohms Empty | 180.0 |
| Resistance Ohms Full | 10.0 |
| Strainer Included | Yes |
| System Pressure | 40 psi |
| Terminal Gender | Male |
| Terminal Quantity | 4 |
| Terminal Type | Blade |
| Vapor Pressure Sensor | No |
| Voltage | 12.0 |
| Fits | Ford · 2 vehicles |
Standard replacement. Built as a fuel pump module assembly for straightforward service.
OE heritage. Backed by 100 years of OE experience and supplier knowledge.
Fuel level sender included. Adds the sender assembly for a complete fuel system service.
Cross-references Airtex Fuel Pumps E2555M, Bosch 66069 and Spectra Premium SP2139M for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi FG1666 Fuel Pump Module Assembly
The Delphi FG1666 fuel pump module assembly is a standard replacement for in-tank gasoline fuel delivery systems. Built from Delphi’s OE heritage and application knowledge, it is engineered for the 2010 Ford Mustang, left position, with the fuel level sender assembly included and a quick-connect outlet for service-friendly installation.
Key Features
- Fits 2010 Ford Mustang, left
- In-tank electric fuel pump module assembly for gasoline applications
- Maximum pressure: 73.0 psi; system pressure: 40 psi
- Average flow rating: 21
- Fuel level sender assembly included
- Strainer included; external strainer design
- Quick-connect outlet with 0.375 in. outside diameter
- 12.0V operation with blade terminals and 4 terminal connections
- Standard replacement part number FG1666
Detailed Description
Delphi FG1666 is a fuel pump module assembly for the left side of the 2010 Ford Mustang. It is built for in-tank gasoline fuel delivery and includes the fuel level sender assembly, helping restore both fuel supply and tank level reporting in one service part. The module uses an electric pump design, a quick-connect outlet, and a blade-terminal electrical connection for a direct replacement-style installation. Delphi’s OE background and broad aftermarket coverage are reflected in the FG1666’s application-specific construction and standard replacement format. This part cross-references Bosch 66069 for the same application.
Common Problems This Part Can Address
- Hard starting caused by weak or inconsistent fuel delivery
- Engine stalling from low fuel pressure
- Fuel gauge inaccuracies from a worn sender assembly
- Loss of pump output from an aging in-tank module
- Fuel delivery issues on a 2010 Ford Mustang, left side
Installation Notes and Tips
Before installation, clean the fuel tank to reduce the risk of seal contamination and future sealing problems. Verify the vehicle uses the left-side in-tank module configuration and confirm connector, outlet, and pressure specifications before assembly. Replace only with the correct gasoline fuel system components and follow factory service procedures for depressurizing the system and handling fuel vapors.
Quality Assurance
Delphi builds this module using OE-focused engineering knowledge developed through long-term supplier experience with major automakers. The FG1666 is a standard replacement fuel pump module assembly intended to meet the demands of the specified application with the included sender and strainer components.
| Year | Make | Model | Submodel | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Ford | Mustang | GT | GAS | Left | Clean fuel tank before installing fuel pump to prevent future seal problems. |
| 2010 | Ford | Mustang | Base | GAS | Left | Clean fuel tank before installing fuel pump to prevent future seal problems. |
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