Part Number: 6550 (Airtex Type 6550 / Replaces AC 40455)
Type: Mechanical Fuel Pump (Single Action / 2-Port / Non-A/C)
Replaces OEM Reference: GM 6440455, GM 5621733, GM 5656550
Note: Part Number 6550 is the designated replacement for the 1963-1965 Pontiac Single Action pump (replacing AC 40455). It is a 2-Port pump (1 Inlet, 1 Outlet) for vehicles without factory Air Conditioning.
fits
| Make |
Model |
Year |
Engine |
Special Notes |
| Pontiac |
Bonneville |
1963 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Bonneville |
1963 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Bonneville |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Bonneville |
1964 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Bonneville |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Bonneville |
1965 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1963 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1963 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1964 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Catalina |
1965 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1963 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1963 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1964 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Grand Prix |
1965 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
GTO |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
GTO |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
LeMans |
1963 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
LeMans |
1964 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
LeMans |
1965 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1963 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1963 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1964 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
Star Chief |
1965 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
Tempest |
1963 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
Tempest |
1964 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
Tempest |
1965 |
V8-326ci (5.3L) |
Without A/C (Single Action) |
| Pontiac |
2+2 |
1964 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
2+2 |
1964 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
| Pontiac |
2+2 |
1965 |
V8-389ci (6.4L) |
Without A/C (Single Action) |
| Pontiac |
2+2 |
1965 |
V8-421ci (6.9L) |
Without A/C (Single Action) |
1963 1964 1965
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.
