Bosch
Fuel Pump Module Assembly (New)

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.

$244.32Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $244.32
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

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.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2012FordEscape2.5LL4GASN/AFuel Pump Module Assembly (New)
2011FordEscape2.5LL4GASN/AFuel Pump Module Assembly (New)
2011MercuryMariner2.5LL4GASN/AFuel Pump Module Assembly (New)
2010FordEscape2.5LL4GASN/AFuel Pump Module Assembly (New)
2010MercuryMariner2.5LL4GASN/AFuel Pump Module Assembly (New)
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AL8Z9H307A