OE Quality
60-Day Returns

Delphi FG1257 Fuel Pump Module Assembly
Delphi Fuel Pump Module Assembly for Hyundai Santa Fe
The Delphi FG1257 fuel pump module assembly is designed specifically for Hyundai Santa Fe models requiring a reliable in-tank electric fuel pump. Engineered to deliver consistent fuel flow and pressure, this module supports optimal engine performance and fuel efficiency.
- Electric fuel pump module assembly with integrated fuel level sender
- Compatible with gasoline fuel systems at 12V operation
- Includes lock ring, gasket, and external strainer for secure installation and filtration
- Quick connect outlet with 0.313 inch outside diameter and three outlet ports
- Designed for in-tank installation with blade-type male terminals (5 terminals)
- System pressure rated at 44 psi with a maximum pressure of 80 psi
- Average flow rating of 40 liters per hour and average current draw of 8 amps
Technical Details and Specifications
The Delphi FG1257 fuel pump module assembly operates at 12 volts and is intended for gasoline fuel systems. It features an external strainer inlet type and a quick connect outlet type with three outlets, ensuring efficient fuel delivery. The module includes a fuel level sender assembly with a float arm, providing accurate fuel level readings. The terminal configuration consists of five male blade terminals, facilitating straightforward electrical connections. The unit comes with a lock ring and gasket to ensure a secure and leak-free installation within the fuel tank. Resistance values range from 122 ohms when empty to 4 ohms when full, supporting reliable sensor feedback. The pump maintains a system pressure of 44 psi and can handle a maximum pressure of 80 psi, suitable for Hyundai Santa Fe fuel system requirements.
Compatible Vehicles and Applications
This fuel pump module assembly is compatible with Hyundai Santa Fe models that require a standard replacement electric fuel pump module. It is designed to replace OEM fuel pump modules in the air and fuel delivery system, ensuring proper fuel flow and pressure for engine operation.
- Resolves fuel delivery issues such as engine stalling or hesitation
- Addresses fuel level sensor malfunctions for accurate gauge readings
- Eliminates fuel pump noise or failure symptoms
- Prevents low fuel pressure conditions affecting engine performance
- Replaces worn or damaged fuel pump modules in Hyundai Santa Fe vehicles
Installation Notes and Tips
Installation of the Delphi FG1257 fuel pump module assembly requires removal of the fuel tank to access the in-tank pump. Ensure the lock ring and gasket are properly seated to prevent fuel leaks. Verify electrical connections to the five blade terminals are secure and correctly oriented. Use caution when handling the float arm to avoid damage to the fuel level sender assembly. Follow vehicle-specific service manual instructions for safe and proper installation procedures.
Quality Assurance and Warranty
The Delphi FG1257 fuel pump module assembly is manufactured to meet standard replacement quality grades, ensuring reliable performance and durability. The product includes a gasket, lock ring, and strainer to maintain system integrity. While specific warranty details may vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.
| Brand | Delphi |
|---|---|
| Part Number | FG1257 |
| Average Current Draw | 8 |
| Average Flow Rating | 40 |
| Fuel Level Sender Assembly Included | Yes |
| Fuel Type | Gas |
| Gasket Or Seal Included | Yes |
| In Tank or External | In Tank |
| Inlet Type | Strainer |
| Internal Or External Strainer | External |
| Item Grade | Standard Replacement |
| Lock Ring Included | Yes |
| Maximum Pressure | 80.0 |
| Outlet Outside Diameter | 0.313 |
| Outlet Quantity | 3 |
| Outlet Type | Quick Connect |
| Package Contents | Fuel Pump Module Assembly w/Float Arm, Lock Ring, Instruction Sheet |
| Pump Type | Electric |
| Regulator Included | No |
| Resistance Ohms Empty | 122.0 |
| Resistance Ohms Full | 4.0 |
| Strainer Included | Yes |
| System Pressure | 44 psi |
| Terminal Gender | Male |
| Terminal Quantity | 5 |
| Terminal Type | Blade |
| Vapor Pressure Sensor | No |
| Voltage | 12.0 |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Hyundai | Santa Fe | N/A | Clean fuel tank before installing fuel pump to prevent future seal problems. |
| 2004 | Hyundai | Santa Fe | N/A | Clean fuel tank before installing fuel pump to prevent future seal problems. |
| 2003 | Hyundai | Santa Fe | N/A | Clean fuel tank before installing fuel pump to prevent future seal problems. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.