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Bosch 66123 Fuel Pump Module Assembly
| Brand | Bosch 66123 |
|---|---|
| Outlet Quantity | 1 |
| Electric Or Mechanical | Electric |
| Gaskets Included (Fuel Pump) | No |
| In Tank Or External | Internal |
| In-Line Pump | N |
| Mounting Hardware Included | Yes |
| New Or Remanufactured | New |
| Package Contents | 1 module assembly |
| Private Brand? | No |
| Product line | Fuel Pump Module Assembly (New) |
| Fits | Ford and Mercury · 5 vehicles |
OE-quality standards. Built on Bosch production lines and tested to rigorous original-equipment standards.
New module assembly. A fresh fuel pump module assembly for straightforward replacement.
Mounting hardware included. Comes ready for installation with hardware in the box.
Cross-references AL8Z9H307A for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch Fuel Pump Module Assembly for Ford and Mercury
The Bosch Fuel Pump Module Assembly, part number 66123, is a new electric in-tank fuel delivery component built for select Ford Escape and Mercury Mariner applications. It is manufactured and tested to Bosch quality standards used for original equipment fuel pumps, helping support reliable fuel delivery and long service life.
Compatible with 2010-2012 Ford Escape and 2010-2011 Mercury Mariner, this Bosch fuel pump module assembly is a direct-fit replacement for vehicles that require an internal fuel pump module with one outlet.
Key Features
- Bosch Fuel Pump Module Assembly, new construction
- Electric, internal in-tank design
- One outlet configuration
- Mounting hardware included
- Fuel pump gasket not included
- Package contents: 1 module assembly
- Part number 66123 for application lookup and ordering
Product Details
Bosch’s Fuel Pump Module Assembly line brings premium fuel system engineering to the aftermarket using production and testing standards aligned with Bosch original equipment parts. Part number 66123 is built as a new replacement module for vehicles that need an internal electric fuel pump assembly, making it a practical choice for restoring proper fuel supply in Ford Escape and Mercury Mariner models from the listed years. This part cross-references Ford OE number AL8Z9H307A for the same application.
Common Issues This Part Can Address
- Hard starting caused by weak or inconsistent fuel delivery
- Engine stalling from insufficient fuel pressure
- Fuel pump noise from a worn in-tank module
- Loss of power under load related to fuel starvation
- Fuel delivery problems tied to a failing module assembly
Installation Notes and Tips
Verify the vehicle’s fuel system configuration before installation, including internal pump layout and outlet count. Replace the fuel pump gasket if the application requires one, since gasket is not included with this module. Confirm fitment by year, make, and model: Fits 2010-2012 Ford Escape, N/A; Fits 2010-2011 Mercury Mariner, N/A. Part number 66123 should be matched to the vehicle’s OE reference before installation.
Quality Assurance
Bosch manufactures this fuel pump module using the same production approach and quality controls applied to its original equipment fuel pumps. That process supports consistent fit, dependable operation, and long-term service in the specified Ford Escape and Mercury Mariner applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | Ford | Escape | 2.5L | L4 | GAS | N/A | Fuel Pump Module Assembly (New) |
| 2011 | Ford | Escape | 2.5L | L4 | GAS | N/A | Fuel Pump Module Assembly (New) |
| 2011 | Mercury | Mariner | 2.5L | L4 | GAS | N/A | Fuel Pump Module Assembly (New) |
| 2010 | Ford | Escape | 2.5L | L4 | GAS | N/A | Fuel Pump Module Assembly (New) |
| 2010 | Mercury | Mariner | 2.5L | L4 | GAS | N/A | Fuel Pump Module Assembly (New) |
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