Genuine 6523 Ford/Mercury Fuel Pump (Vintage Rebuilt)
Restore the fuel delivery system of your classic Ford or Mercury V8 to factory-original standards with this professionally rebuilt mechanical fuel pump. Proudly Made in the USA, this genuine vintage unit is a period-correct component essential for high-quality restorations. By utilizing high-quality original castings, this rebuilt pump maintains the authentic look and rugged durability that modern mass-market replacements often fail to provide, ensuring your high-displacement V8 receives steady, reliable fuel pressure.
This specific model, 6523 (interchangeable with Unit Parts 4007), is the verified fitment for 1962–1969 Ford and Mercury applications, including 1965–1969 Ford Trucks. It is engineered specifically for the 352, 360, 390, 406, 427, and 428 cubic inch "FE" series V8 engines. This unit is designated for models equipped with an integral fuel filter mounted directly to the pump housing and is the correct configuration for vehicles equipped with Air Conditioning (A.C.). It serves as a primary replacement for original equipment and interchanges with Carter models M3399S and M4007S. This pump is a critical component for maintaining the correct fuel volume required by Ford's premium luxury, performance, and heavy-duty powerplants of the 1960s.
Note on Stock Photos: Due to our volume of identical, interchangeable inventory, we use representative stock photos for this model. The image is for reference only and may depict a specific manufacturer (e.g., 'AC'). You will receive a pump that meets all listed specifications, which may be from the manufacturer shown or a fully equivalent alternative.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these pumps may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Key Features:
- Part Number: 6523 (Interchanges with 4007)
- Interchange / Replaces OEM: Carter M3399S, M4007S
- Position: Engine Mounted
- Engine Fitment: Ford FE-Series V8 (352, 360, 390, 406, 427, 428 CID)
- Options: Verified for models with Air Conditioning (A.C.)
- Design: Equipped with Integral Fuel Filter Housing
- Origin: Made in USA (Vintage Stock)
- Condition: Vintage Rebuilt
Verified Vehicle Fitment:
| Make |
Model / Series |
Year |
Engine |
Notes |
| Ford |
Full Size (Galaxie, LTD) |
1962 |
352, 390 V8 |
w/ A.C. & Integral Filter |
| Ford |
Full Size / Thunderbird |
1963-1967 |
352, 390, 428 V8 |
w/ Integral Filter |
| Ford Truck |
F-Series (F100, F250, F350) |
1965-1969 |
352, 360, 390 V8 |
w/ Integral Filter |
| Mercury |
All Models (Monterey, etc.) |
1962-1969 |
352, 390, 406, 428 V8 |
w/ A.C. (1962) & Filter |
Fits Year(s):
1962 1963 1964 1965 1966 1967 1968 1969
Unbeatable Prices & Expectations
We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our vintage inventory is acquired from old auto parts stores, warehouses, and private collections. While these parts are unused or professionally rebuilt, their packaging and surfaces may show signs of shelf wear or age due to decades of storage. Rest assured, every part is a genuine piece of automotive history, built to the standards of the era it represents.
