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Carter M6878 Mechanical Fuel Pump
Reliable Mechanical Fuel Pump for Ford, Lincoln, and Mercury Vehicles
The Carter M6878 mechanical fuel pump is designed to deliver consistent fuel flow and pressure for select Ford, Lincoln, and Mercury models. Engineered to meet the specific requirements of vehicles like the Ford F-100 and Lincoln Continental, this fuel pump ensures proper fuel delivery for optimal engine performance.
Key Features of the Carter M6878 Mechanical Fuel Pump
- Inlet outside diameter: 9.5 mm for precise hose connection
- Includes gasket or seal for secure installation
- Two mounting holes for stable attachment
- Single inlet hose type and single threaded outlet
- Outlet fitting thread size: 1/2-20 UNF
- Minimum flow rating of 23 gallons per hour
- Operating pressure range between 5.5 and 7 psi
- Mechanical pump type suitable for classic vehicle fuel systems
Detailed Description of the Carter M6878 Fuel Pump
This mechanical fuel pump is specifically designed for use in Ford, Lincoln, and Mercury vehicles including models such as the Colony Park, Cougar, Grand Marquis, Marauder, Montego, Thunderbird, and LTD. The pump features a hose-type inlet with a 9.5 mm outside diameter and a threaded outlet with a 1/2-20 UNF fitting, ensuring compatibility with factory fuel lines. With a minimum flow rating of 23 gallons per hour and a pressure range from 5.5 to 7 psi, the M6878 maintains steady fuel delivery to support engine operation under various conditions. The pump mounts securely using two mounting holes and includes a gasket or seal to prevent leaks during installation. Note that mounting hardware is not included.
Common Applications and Issues Addressed
- Restores proper fuel pressure in Ford F-100 and Mercury Cougar models
- Replaces worn or leaking mechanical fuel pumps in Lincoln Continental and Grand Marquis
- Solves fuel delivery interruptions causing engine hesitation or stalling
- Addresses low fuel flow issues affecting engine performance
- Suitable for maintenance or restoration projects on classic Ford and Mercury vehicles
Installation Notes and Tips
- Ensure the gasket or seal included is properly seated to prevent fuel leaks
- Verify the inlet hose diameter matches the 9.5 mm specification for a secure fit
- Use appropriate mounting hardware as it is not included with the pump
- Check the outlet fitting thread size (1/2-20 UNF) for compatibility with existing fuel lines
- Follow vehicle-specific service manual instructions for mechanical fuel pump replacement
Quality Assurance and Warranty Information
The Carter M6878 mechanical fuel pump is manufactured to meet OEM specifications for fit, form, and function on compatible Ford, Lincoln, and Mercury vehicles. It includes a gasket or seal to ensure a proper installation. While mounting hardware is not included, the pump is designed for durability and consistent fuel delivery. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Carter |
|---|---|
| Part Number | M6878 |
| Gasket Or Seal Included | Yes |
| Inlet Outside Diameter | 9.5 |
| Inlet Quantity | 1 |
| Inlet Type | Hose |
| Maximum Pressure | 7 |
| Minimum Flow Rating | 23 |
| Minimum Pressure | 5.5 |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Outlet Fitting Thread Size | 1/2-20 UNF |
| Outlet Quantity | 1 |
| Outlet Type | Threaded |
| Pump Type | Mechanical |
This part fits 63 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1978 | Ford | LTD | 7.5L | V8 | N/A | |
| 1978 | Ford | LTD | 7.5L | V8 | N/A | with Police Package |
| 1978 | Mercury | Grand Marquis | 7.5L | V8 | N/A | |
| 1977 | Ford | LTD | 7.5L | V8 | N/A | Late Production; without Return Line |
| 1977 | Ford | LTD | 7.5L | V8 | N/A | Late Production; with Police Package; without Return Line |
| 1977 | Lincoln | Continental | 7.5L | V8 | N/A | Late Production |
| 1977 | Mercury | Grand Marquis | 7.5L | V8 | N/A | Late Production; without Return Line |
| 1977 | Mercury | Marquis | 7.5L | V8 | N/A | Late Production; without Return Line |
| 1974 | Ford | F-100 | 7.5L | V8 | N/A | |
| 1974 | Ford | LTD | 7.5L | V8 | N/A | |
| 1974 | Ford | Thunderbird | 7.5L | V8 | N/A | |
| 1974 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1974 | Mercury | Colony Park | 7.5L | V8 | N/A | |
| 1974 | Mercury | Cougar | 7.5L | V8 | N/A | |
| 1974 | Mercury | Marquis | 7.5L | V8 | N/A | |
| 1974 | Mercury | Montego | 7.5L | V8 | N/A | |
| 1973 | Ford | LTD | 7.0L | V8 | N/A | without Police Package |
| 1973 | Ford | LTD | 7.5L | V8 | N/A | |
| 1973 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1973 | Ford | Thunderbird | 7.5L | V8 | N/A | |
| 1973 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1973 | Mercury | Colony Park | 7.0L | V8 | N/A | |
| 1973 | Mercury | Colony Park | 7.5L | V8 | N/A | |
| 1973 | Mercury | Cougar | 7.5L | V8 | N/A | |
| 1973 | Mercury | Marquis | 7.0L | V8 | N/A | |
| 1973 | Mercury | Marquis | 7.5L | V8 | N/A | |
| 1973 | Mercury | Montego | 7.0L | V8 | N/A | |
| 1973 | Mercury | Montego | 7.5L | V8 | N/A | |
| 1972 | Ford | LTD | 7.0L | V8 | N/A | without Police Package |
| 1972 | Ford | LTD | 7.5L | V8 | N/A | |
| 1972 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1972 | Ford | Thunderbird | 7.5L | V8 | N/A | |
| 1972 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1972 | Mercury | Colony Park | 7.0L | V8 | N/A | |
| 1972 | Mercury | Colony Park | 7.5L | V8 | N/A | |
| 1972 | Mercury | Marquis | 7.0L | V8 | N/A | |
| 1972 | Mercury | Marquis | 7.5L | V8 | N/A | |
| 1972 | Mercury | Montego | 7.0L | V8 | N/A | |
| 1971 | Ford | LTD | 7.0L | V8 | N/A | |
| 1971 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1971 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1971 | Mercury | Colony Park | 7.0L | V8 | N/A | |
| 1971 | Mercury | Cougar | 7.0L | V8 | N/A | |
| 1971 | Mercury | Marquis | 7.0L | V8 | N/A | |
| 1971 | Mercury | Montego | 7.0L | V8 | N/A | |
| 1970 | Ford | LTD | 7.0L | V8 | N/A | |
| 1970 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1970 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1970 | Mercury | Colony Park | 7.0L | V8 | N/A | |
| 1970 | Mercury | Cougar | 7.0L | V8 | N/A | |
| 1970 | Mercury | Marauder | 7.0L | V8 | N/A | |
| 1970 | Mercury | Marquis | 6.4L | V8 | N/A | |
| 1970 | Mercury | Marquis | 7.0L | V8 | N/A | |
| 1970 | Mercury | Montego | 7.0L | V8 | N/A | |
| 1969 | Ford | LTD | 7.0L | V8 | N/A | |
| 1969 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1969 | Lincoln | Continental | 7.5L | V8 | N/A | |
| 1969 | Mercury | Colony Park | 7.0L | V8 | N/A | |
| 1969 | Mercury | Marauder | 7.0L | V8 | N/A | |
| 1969 | Mercury | Marquis | 7.0L | V8 | N/A | |
| 1968 | Ford | Thunderbird | 7.0L | V8 | N/A | |
| 1968 | Lincoln | Continental | 7.0L | V8 | N/A | |
| 1968 | Lincoln | Continental | 7.5L | V8 | N/A |
* 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.