Carter M4689 Mechanical Fuel Pump

Reliable Mechanical Fuel Pump for Pontiac Vehicles

The Carter M4689 mechanical fuel pump is designed to provide consistent fuel delivery for select Pontiac models. Engineered to meet the specific requirements of vehicles like the Pontiac Bonneville, Firebird, and GTO, this fuel pump ensures steady fuel flow and pressure for optimal engine performance.

Key Features of Carter M4689 Mechanical Fuel Pump

• Mechanical pump type 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
• Pressure range between 5.5 and 7 PSI for consistent operation
• Compatible with multiple Pontiac models including Bonneville, Catalina, Firebird, Grand Prix, GTO, Laurentian, LeMans, Parisienne, and Tempest

Detailed Description of Carter M4689 Fuel Pump

The Carter M4689 mechanical fuel pump is built to maintain proper fuel pressure and flow in Pontiac vehicles equipped with carbureted engines. Featuring a tube-type inlet and a threaded outlet with a 5/8-18 fitting, this pump facilitates secure fuel line connections. The included gasket or seal helps prevent leaks during installation. With a minimum flow rating of 40 and operating pressure between 5.5 and 7 PSI, the pump supports steady fuel delivery essential for engine efficiency and performance. This part is specifically designed for compatibility with Pontiac models such as the Bonneville, Firebird, and GTO, ensuring a precise fit and reliable operation.

Common Applications and Issues Addressed

• Restores proper fuel pressure in Pontiac Bonneville and Firebird carbureted engines
• Replaces worn or leaking mechanical fuel pumps causing fuel delivery problems
• Solves engine hesitation or stalling due to inconsistent fuel flow
• Addresses fuel pump failures in Pontiac GTO and Grand Prix models
• Improves fuel system reliability in classic Pontiac vehicles

Installation Notes and Tips

• Ensure the gasket or seal included is properly seated to prevent fuel leaks
• Verify compatibility with your specific Pontiac model before installation
• Check fuel line connections to the tube inlet and threaded outlet for secure fit
• Do not reuse mounting hardware; new hardware is recommended though not included
• Follow vehicle manufacturer torque specifications when securing the pump

Quality Assurance and Warranty Information

The Carter M4689 mechanical fuel pump is manufactured to meet industry standards for durability and performance. While mounting hardware is not included, the pump comes with a gasket or seal to ensure a proper fit. Carter products typically carry a limited warranty against defects in materials and workmanship; please refer to Carter's official warranty policy for specific terms related to this part.