Product Description
Part Number: 40001 (AC Type 40001)
Type: Mechanical Fuel Pump (For Buick-Design V6 & Small Block V8)
Replaces OEM Reference: GM 6440001, GM 6414989, GM 5621732
Note: This pump is specifically designed for the Buick-based engines (198/225 V6 and 300 V8). It does not fit the aluminum 215 V8 (1961-1963) or the later Buick 340/350 engines. While listed for Jeep, it strictly fits those equipped with the factory "Dauntless" V6 (which was a Buick engine).
fits
| Make | Model | Year | Engine | Special Notes |
| Buick | LeSabre | 1964-1965 | V8-300ci (4.9L) | Standard Engine |
| Buick | Skylark | 1962-1963 | V6-198ci (3.2L) | Fireball V6 |
| Buick | Skylark | 1964-1966 | V6-225ci (3.7L) | Fireball V6 |
| Buick | Skylark | 1964-1965 | V8-300ci (4.9L) | Wildcat 310 / 355 |
| Buick | Special | 1962-1963 | V6-198ci (3.2L) | Fireball V6 |
| Buick | Special | 1964-1966 | V6-225ci (3.7L) | Fireball V6 |
| Buick | Special | 1964-1965 | V8-300ci (4.9L) | Wildcat 310 / 355 |
| Buick | Sportwagon | 1964-1965 | V8-300ci (4.9L) | All Models |
| Jeep | CJ5 | 1966-1971 | V6-225ci (3.7L) | Dauntless V6 (Buick Engine) |
| Jeep | CJ6 | 1966-1971 | V6-225ci (3.7L) | Dauntless V6 (Buick Engine) |
| Jeep | Commando | 1966-1971 | V6-225ci (3.7L) | Jeepster / Dauntless V6 |
| Jeep | DJ5 | 1966-1971 | V6-225ci (3.7L) | Dispatcher / Dauntless V6 |
| Oldsmobile | Cutlass | 1964-1965 | V6-225ci (3.7L) | Buick V6 Engine Option |
| Oldsmobile | F85 | 1964-1965 | V6-225ci (3.7L) | Buick V6 Engine Option |
| Oldsmobile | Vista Cruiser | 1964-1965 | V6-225ci (3.7L) | Buick V6 Engine Option |
1962 1963 1964 1965 1966
All our pumps are proudly Made in the USA!
If the unit is a rebuilt pump, please note it was professionally reconditioned by a U.S. rebuilder near Denver, CO, between the late 1980s and early 1990s.
Regarding 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.
