Delphi FD0040 Electric Fuel Pump - In-Line

Delphi FD0040 Electric Fuel Pump Overview

The Delphi FD0040 is a standard replacement electric fuel pump for diesel applications that require an external, in-line design. Built with Delphi’s OE-focused engineering background, it delivers 12-volt operation, female threaded inlet and outlet connections, and a 12.0 maximum pressure rating for steady fuel delivery.

Compatible with 1984-1985 Lincoln Continental and 1984-1985 Lincoln Mark VII, this Delphi fuel pump is a direct-fit option for select diesel fuel systems. The FD0040 is also cross-referenced to Airtex E2324 and Carter P74017 for the same application.

Key Features

• Electric fuel pump for diesel fuel systems
• External, in-line mounting position
• 12-volt operation with lead wire terminals
• Female threaded inlet and outlet connections
• Average flow rating of 32 and average current draw of 4
• Standard replacement grade for select OE-style applications
• Package contents include the pump, bracket, hose clamps, hoses, splices, terminal hardware, washers, and instruction sheet

Detailed Description

Delphi FD0040 is engineered for select 1984-1985 Lincoln Continental and Lincoln Mark VII diesel applications that use an external in-line fuel pump. With a system pressure rating of 8 psi and a maximum pressure of 12.0, it supports consistent fuel transfer in low-pressure diesel delivery systems. The pump uses 0.500-inch inlet and outlet outside diameters, female threaded ports, and a two-terminal lead wire setup for straightforward electrical connection.

Delphi draws on more than a century of OE experience and supplier knowledge from working with major automakers, and that background is reflected in the FD0040’s standard replacement design. If you are searching for a 1984 Lincoln Continental fuel pump, a 1985 Lincoln Mark VII diesel fuel pump, or Delphi FD0040 replacement fuel pump details, this part matches those vehicle-specific needs.

What This Fuel Pump Helps Address

• Hard starting caused by weak fuel delivery
• Fuel starvation in diesel systems with an external in-line pump
• Low fuel pressure at the injection system
• Intermittent engine hesitation from inconsistent pump output
• Replacement needs for worn or failing OE-style fuel pumps

Installation Notes and Tips

Install the FD0040 in the in-line external position specified for the application and verify that the fuel system is clean before installation. Delphi notes that the fuel tank should be cleaned before fitting the pump to help prevent future seal problems. Confirm inlet and outlet orientation, use the correct threaded connections, and check all hose and electrical connections for secure fitment before operation.

Quality Assurance

Delphi builds this pump using OE heritage and application knowledge developed through long-term supplier experience with major automakers. The FD0040 is a standard replacement part intended to meet the requirements of the listed diesel applications with the specified pressure, flow, and connection style.