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Part Number: 6744 (AC Type 6744)
Type: Mechanical Fuel Pump (2-Port / "Gold Top" Style)
Replaces OEM Reference: GM 5621874
Note: This pump is specific to the 1963-1964 model years.
1963: Used the "New" lightweight 390ci V8 (distinct from the 1962 and earlier 390).
1964: Used the 429ci V8 (based on the 1963 architecture).
This is a 2-Line Pump (1 Inlet, 1 Outlet). Vapor return is typically handled by the external fuel filter (AC GF98 or GF124) on these models. It is often referred to as the "Gold Top" pump due to the dichromate finish on the casting.
fits
| Make | Model | Year | Engine | Special Notes |
| Cadillac | Commercial Chassis | 1963 | V8-390ci (6.4L) | Series 6800 / 6810 |
| Cadillac | Commercial Chassis | 1964 | V8-429ci (7.0L) | Series 6800 / 6810 |
| Cadillac | DeVille | 1963 | V8-390ci (6.4L) | Coupe / Sedan / Convertible |
| Cadillac | DeVille | 1964 | V8-429ci (7.0L) | Coupe / Sedan / Convertible |
| Cadillac | Eldorado | 1963 | V8-390ci (6.4L) | Biarritz Convertible |
| Cadillac | Eldorado | 1964 | V8-429ci (7.0L) | Biarritz Convertible |
| Cadillac | Fleetwood | 1963 | V8-390ci (6.4L) | 60 Special / 75 |
| Cadillac | Fleetwood | 1964 | V8-429ci (7.0L) | 60 Special / 75 |
| Cadillac | Series 60 Special | 1963 | V8-390ci (6.4L) | Fleetwood |
| Cadillac | Series 60 Special | 1964 | V8-429ci (7.0L) | Fleetwood |
| Cadillac | Series 62 | 1963 | V8-390ci (6.4L) | Coupe / Sedan / Convertible |
| Cadillac | Series 62 | 1964 | V8-429ci (7.0L) | Coupe / Sedan / Convertible |
| Cadillac | Series 75 | 1963 | V8-390ci (6.4L) | Limousine |
| Cadillac | Series 75 | 1964 | V8-429ci (7.0L) | Limousine |
1963 1964
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.