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Carter M6399 Mechanical Fuel Pump
| Brand | Carter M6399 |
|---|---|
| Gasket Or Seal Included | Yes |
| Inlet Type | Tube |
| Maximum Pressure | 5.5 |
| Minimum Flow Rating | 20 |
| Minimum Pressure | 4 |
| Mounting Hardware Included | No |
| Outlet Fitting Thread Size | 1/2-20 |
| Outlet Quantity | 1 |
| Outlet Type | Threaded |
| Pump Type | Mechanical |
| Fits | Ford and Mercury · 45 vehicles |
OE fit, form, and function. Built as a mechanical fuel pump for straightforward replacement.
Includes a gasket or seal for a cleaner installation.
Threaded outlet and tube inlet simplify fuel line connection.
Cross-references Airtex Fuel Pumps 6399, Anchor 6092 and Delphi MF0095 for the same application. See all 21.
Carter M6399 Mechanical Fuel Pump
The Carter M6399 is a mechanical fuel pump built for OE-style fit, form, and function on select Ford and Mercury applications. It features a tube inlet, a threaded outlet, and a gasket or seal included for service replacement work.
Key Features
- Mechanical fuel pump design for carbureted fuel delivery systems
- Tube inlet with a single threaded outlet
- 1/2-20 outlet fitting thread size
- Gasket or seal included
- Minimum flow rating of 20
- Operating pressure range of 4 to 5.5
- OE-style coverage for classic Ford and Mercury vehicles
Detailed Description
Carter M6399 is a mechanical fuel pump engineered for direct replacement service on classic Ford Bronco, Mustang, LTD, E-100 Econoline, F-100, F-250, F-350, and Mercury Montego applications. It is also a fitment match for 1968-1974 Ford and Mercury vehicles that use a mechanical pump with a tube inlet and threaded outlet connection. This part cross-references Airtex Fuel Pumps 6399 for the same application.
Built around Carter’s OE fit, form, and function approach, this pump is suited for restoring consistent fuel delivery in carbureted systems where correct pressure and flow matter. The M6399 part number is commonly searched for classic Ford fuel pump replacement, Ford Bronco mechanical fuel pump, and 1968-1973 Mustang fuel pump applications.
What It Helps Address
- Hard starting caused by weak fuel delivery
- Fuel starvation under normal driving conditions
- Low fuel pressure in carbureted systems
- Stalling related to inconsistent pump output
- Replacement needs for worn mechanical fuel pumps on classic Ford and Mercury vehicles
Installation Notes and Tips
Verify the outlet thread size, inlet style, and pressure requirements before installation. This pump uses a threaded outlet with a 1/2-20 fitting and does not include mounting hardware. Confirm vehicle configuration on 1974 Ford F-100, F-250, and F-350 models without in-cab tank setups before ordering. Use the included gasket or seal during installation and inspect fuel lines, filters, and mounting surfaces for wear or contamination.
Quality Assurance
Carter Fuel Systems focuses on OE-style replacement parts with application coverage and problem-solving design features for service work on classic vehicles. The M6399 is built to support dependable fuel system restoration on compatible Ford and Mercury applications.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1974 | Ford | Bronco | — | 3.3L | L6 | N/A | — |
| 1974 | Ford | E-100 Econoline | — | 3.9L | L6 | N/A | — |
| 1974 | Ford | E-100 Econoline | — | 4.9L | L6 | N/A | — |
| 1974 | Ford | F-100 | — | 3.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Ford | F-100 | — | 4.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Ford | F-250 | — | 3.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Ford | F-250 | — | 4.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Ford | F-350 | — | 3.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Ford | F-350 | — | 4.9L | L6 | N/A | without In-Cab Tank |
| 1974 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1973 | Ford | Bronco | — | 3.3L | L6 | N/A | — |
| 1973 | Ford | E-100 Econoline | — | 3.9L | L6 | N/A | — |
| 1973 | Ford | E-100 Econoline | — | 4.9L | L6 | N/A | — |
| 1973 | Ford | F-100 | — | 3.9L | L6 | N/A | — |
| 1973 | Ford | F-100 | — | 4.9L | L6 | N/A | — |
| 1973 | Ford | F-250 | RWD | 3.9L | L6 | N/A | — |
| 1973 | Ford | F-250 | RWD | 4.9L | L6 | N/A | — |
| 1973 | Ford | F-350 | — | 3.9L | L6 | N/A | — |
| 1973 | Ford | Mustang | — | 4.1L | L6 | N/A | — |
| 1973 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1972 | Ford | Bronco | — | 2.8L | L6 | N/A | — |
| 1972 | Ford | E-100 Econoline | — | 3.9L | L6 | N/A | — |
| 1972 | Ford | E-100 Econoline | — | 4.9L | L6 | N/A | — |
| 1972 | Ford | LTD | — | 3.9L | L6 | N/A | — |
| 1972 | Ford | Mustang | — | 4.1L | L6 | N/A | — |
| 1972 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1971 | Ford | Bronco | — | 2.8L | L6 | N/A | — |
| 1971 | Ford | E-100 Econoline | — | 2.8L | L6 | N/A | — |
| 1971 | Ford | E-100 Econoline | — | 3.9L | L6 | N/A | — |
| 1971 | Ford | LTD | — | 3.9L | L6 | N/A | — |
| 1971 | Ford | Mustang | — | 4.1L | L6 | N/A | — |
| 1971 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1970 | Ford | Bronco | — | 2.8L | L6 | N/A | — |
| 1970 | Ford | E-100 Econoline | — | 2.8L | L6 | N/A | — |
| 1970 | Ford | E-100 Econoline | — | 3.9L | L6 | N/A | — |
| 1970 | Ford | LTD | — | 3.9L | L6 | N/A | — |
| 1970 | Ford | Mustang | — | 3.3L | L6 | N/A | — |
| 1970 | Ford | Mustang | — | 4.1L | L6 | N/A | — |
| 1970 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1969 | Ford | Bronco | — | 2.8L | L6 | N/A | — |
| 1969 | Ford | Mustang | — | 3.3L | L6 | N/A | — |
| 1969 | Ford | Mustang | — | 4.1L | L6 | N/A | — |
| 1969 | Mercury | Montego | — | 4.1L | L6 | N/A | — |
| 1968 | Ford | Mustang | — | 3.3L | L6 | N/A | — |
| 1968 | Mercury | Montego | — | 3.3L | L6 | N/A | — |
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