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Carter M6622 Mechanical Fuel Pump
Reliable Mechanical Fuel Pump for Cadillac Models
The Carter M6622 mechanical fuel pump is designed to deliver consistent fuel flow and pressure for select Cadillac vehicles. Engineered for durability and precise fuel delivery, this pump supports models such as the Cadillac DeVille, Eldorado, Fleetwood, and Commercial Chassis.
Key Features of Carter M6622 Mechanical Fuel Pump
- Inlet outside diameter: 9.5 mm for secure hose connection
- Includes gasket or seal for leak-free installation
- Two mounting holes for stable attachment
- Single inlet (hose type) and single outlet (threaded) ports
- Outlet fitting thread size: 5/8-18 unf-2b
- Minimum flow rating of 40 gallons per hour
- Operating pressure range between 5.5 and 7 psi
- Mechanical pump type suitable for classic fuel systems
- Mounting hardware not included
Detailed Description of Carter M6622 Fuel Pump
This Carter M6622 mechanical fuel pump is specifically designed for Cadillac vehicles including the DeVille, Eldorado, Fleetwood, and Commercial Chassis models. The pump features a hose-type inlet with a 9.5 mm outside diameter, ensuring compatibility with standard fuel lines. Its single threaded outlet port (5/8-18 unf-2b) provides a secure connection to the fuel delivery system. With a minimum flow rating of 40 gallons per hour and a pressure range from 5.5 to 7 psi, this pump maintains steady fuel supply under typical operating conditions. The included gasket or seal helps prevent leaks during installation, although mounting hardware is not provided. The two mounting holes allow for a stable and precise fit on compatible Cadillac chassis.
Applications and Common Issues Addressed
- Restores proper fuel delivery in Cadillac DeVille, Eldorado, Fleetwood, and Commercial Chassis models
- Resolves fuel starvation or inconsistent engine performance caused by failing mechanical fuel pumps
- Eliminates fuel leaks with included gasket or seal
- Addresses low fuel pressure issues within the 5.5 to 7 psi range
- Supports maintenance and restoration of classic Cadillac fuel systems
Installation Notes and Tips
- Verify compatibility with your specific Cadillac model and year before installation
- Use the included gasket or seal to ensure a leak-free connection
- Secure the pump using the two mounting holes; mounting hardware must be sourced separately
- Check fuel line connections for proper fit on the 9.5 mm inlet hose and 5/8-18 unf-2b threaded outlet
- Test fuel pressure after installation to confirm operation within 5.5 to 7 psi range
Quality Assurance and Warranty Information
The Carter M6622 mechanical fuel pump is manufactured to meet industry standards for durability and performance. It undergoes quality control testing to ensure reliable fuel delivery for Cadillac vehicles. This product includes a gasket or seal to support proper installation. Warranty coverage details should be confirmed with the product documentation or manufacturer.
| Brand | Carter |
|---|---|
| Part Number | M6622 |
| Gasket Or Seal Included | Yes |
| Inlet Outside Diameter | 9.5 |
| Inlet Quantity | 1 |
| Inlet Type | Hose |
| Maximum Pressure | 7 |
| Minimum Flow Rating | 40 |
| Minimum Pressure | 5.5 |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Outlet Fitting Thread Size | 5/8-18 UNF-2B |
| Outlet Quantity | 1 |
| Outlet Type | Threaded |
| Pump Type | Mechanical |
This part fits 34 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1978 | Cadillac | Eldorado | 7.0L | V8 | N/A | with 3 Line Pump |
| 1977 | Cadillac | Eldorado | 7.0L | V8 | N/A | with 3 Line Pump |
| 1976 | Cadillac | Commercial Chassis | 8.2L | V8 | N/A | with 3 Line Pump |
| 1976 | Cadillac | DeVille | 8.2L | V8 | N/A | with 3 Line Pump |
| 1976 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump |
| 1976 | Cadillac | Fleetwood | 8.2L | V8 | N/A | with 3 Line Pump |
| 1975 | Cadillac | Commercial Chassis | 8.2L | V8 | N/A | with 3 Line Pump |
| 1975 | Cadillac | DeVille | 8.2L | V8 | N/A | with 3 Line Pump |
| 1975 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump |
| 1975 | Cadillac | Fleetwood | 8.2L | V8 | N/A | with 3 Line Pump |
| 1974 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1974 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1974 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1974 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
| 1973 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1973 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1973 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1973 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
| 1972 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1972 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1972 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1972 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
| 1971 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1971 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1971 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1971 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
| 1970 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1970 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1970 | Cadillac | Eldorado | 8.2L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1970 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
| 1969 | Cadillac | Commercial Chassis | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1969 | Cadillac | DeVille | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1969 | Cadillac | Eldorado | 7.7L | V8 | N/A | with 3 Line Pump; with Air Conditioning |
| 1969 | Cadillac | Fleetwood | 7.7L | V8 | N/A | with 3 Line Pump |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.