Product Description
Genuine 40579 Fuel Pump (Vintage Rebuilt)
Restore your classic Buick’s fuel system to its original factory performance with this professionally rebuilt mechanical fuel pump. Proudly Made in the USA, this genuine vintage unit is an essential component for any high-quality restoration. By utilizing original heavy-duty castings, this rebuilt pump maintains the authentic period-correct aesthetic and durability that modern mass-market replacements often fail to provide.
This specific model, 40579, is the designated fitment for 1968-1969 Buick and Buick Special applications equipped with the 350 cubic inch V8 engine. Derived from the Master catalog, this unit is classified as the "1st Type" pump, intended for vehicles without air conditioning and without a fuel return line. For models equipped with air conditioning or a return line, please verify your configuration, as a different pump (Master 40604M) may be required.
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: 40579 (Master 40579M)
- Interchange / Replaces OEM: 644 0579
- Position: Engine Mounted
- Engine Fitment: 350 CID V8
- Origin: Made in USA (Vintage Stock)
- Condition: Vintage Rebuilt
Verified Vehicle Fitment:
| Make | Model / Series | Year | Engine | Notes |
| Buick | Full Size (LeSabre, etc.) | 1968-1969 | 350 V8 | 1st Type; W/O Air Cond. or Fuel Return Line |
| Buick | Special (Skylark, GS 350) | 1968-1969 | 350 V8 | 1st Type; W/O Air Cond. or Fuel Return Line |
Fits Years:
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.
