OE Quality
60-Day Returns

Carter M6405 Mechanical Fuel Pump
Reliable Mechanical Fuel Pump for Pontiac Vehicles
The Carter M6405 mechanical fuel pump is designed to provide consistent fuel delivery for select Pontiac models. Engineered to meet the specific requirements of vehicles like the Bonneville, Catalina, Firebird, Grand Am, Grand Prix, and LeMans, this pump ensures steady fuel flow and pressure for optimal engine performance.
- Mechanical fuel pump with tube inlet and threaded outlet
- Includes gasket or seal for secure installation
- Single outlet with 5/8-18 threaded fitting
- Flow rating of 40 minimum for reliable fuel delivery
- Maintains fuel pressure between 5 and 6.5 psi
Technical Details and Specifications
The Carter M6405 mechanical fuel pump features a tube-type inlet and a single threaded outlet designed for a 5/8-18 fitting thread size. It delivers a minimum flow rating of 40 gallons per hour, maintaining fuel pressure within a range of 5 to 6.5 psi. This ensures consistent fuel supply to the engine under various operating conditions. The included gasket or seal helps prevent leaks and ensures a tight fit during installation. Note that mounting hardware is not included with this pump.
Compatible Pontiac Models and Applications
This mechanical fuel pump is compatible with a range of Pontiac vehicles, including the Bonneville, Catalina, Firebird, Grand Am, Grand Prix, and LeMans. It is suitable for owners seeking a replacement fuel pump that matches original equipment specifications for these models, helping to restore proper fuel delivery and engine function.
- Restores proper fuel pressure and flow in Pontiac Bonneville and Catalina
- Replaces worn or failing fuel pumps in Firebird and Grand Am
- Helps resolve fuel delivery issues in Grand Prix and LeMans
- Supports consistent engine performance by maintaining fuel pressure
Installation Notes and Tips
When installing the Carter M6405 mechanical fuel pump, ensure the gasket or seal is properly seated to prevent fuel leaks. Verify that the inlet and outlet connections match the vehicle’s fuel lines, noting the tube inlet and threaded outlet design. Since mounting hardware is not included, retain or source appropriate fasteners for secure attachment. It is recommended to inspect related fuel system components during installation for optimal performance.
Quality Assurance and Warranty Information
Carter mechanical fuel pumps are manufactured to meet industry standards for durability and performance. The M6405 part number is backed by Carter’s quality control processes to ensure reliable operation. Please refer to Carter’s official warranty policy for specific coverage details.
| Brand | Carter |
|---|---|
| Part Number | M6405 |
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Inlet Type | Tube |
| Outlet Type | Threaded |
| Outlet Quantity | 1 |
| Minimum Flow Rating | 40 |
| Maximum Pressure | 6.5 |
| Minimum Pressure | 5 |
| Outlet Fitting Thread Size | 5/8-18 |
| Pump Type | Mechanical |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1974 | Pontiac | Bonneville | 7.5L | V8 | N/A | with 3 Line Pump; with long Housing |
| 1974 | Pontiac | Catalina | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Firebird | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Firebird | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Firebird | 5.7L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Grand Am | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Grand Am | 5.7L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Grand Am | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Grand Prix | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | Grand Prix | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | LeMans | 5.7L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | LeMans | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1974 | Pontiac | LeMans | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Bonneville | 6.6L | V8 | N/A | with 3 Line Pump; with long Housing; with Air Conditioning |
| 1973 | Pontiac | Bonneville | 7.5L | V8 | N/A | with 3 Line Pump; with long Housing |
| 1973 | Pontiac | Catalina | 6.6L | V8 | N/A | with 3 Line Pump; with long Housing; with Air Conditioning |
| 1973 | Pontiac | Catalina | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Firebird | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Firebird | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Grand Am | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Grand Am | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Grand Prix | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | Grand Prix | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | LeMans | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | LeMans | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1973 | Pontiac | LeMans | 5.7L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1972 | Pontiac | Bonneville | 6.6L | V8 | N/A | with 3 Line Pump; with long Housing; with Air Conditioning |
| 1972 | Pontiac | Bonneville | 7.5L | V8 | N/A | with 3 Line Pump; with long Housing |
| 1972 | Pontiac | Catalina | 6.6L | V8 | N/A | with 3 Line Pump; with long Housing; with Air Conditioning |
| 1972 | Pontiac | Catalina | 7.5L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
| 1972 | Pontiac | Firebird | 6.6L | V8 | N/A | with 3 Line Pump; Long Pump Housing |
* 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.