Delphi MF0034 Mechanical Fuel Pump

Reliable Mechanical Fuel Pump for Chevrolet, GMC, and Jeep Vehicles

The Delphi MF0034 mechanical fuel pump is designed to provide consistent fuel delivery for select Chevrolet, GMC, and Jeep models. Engineered for gas fuel systems, this pump ensures steady flow and pressure to support engine performance.

• Compatible with Chevrolet S10, S10 Blazer, S15, S15 Jimmy, and Wagoneer models
• Fits GMC S10, S10 Blazer, S15, S15 Jimmy, and Wagoneer vehicles
• Also compatible with Jeep Cherokee and Comanche models
• Standard replacement grade mechanical fuel pump with 6 psi system pressure
• Includes gasket and instruction sheet for installation
• Inlet outside diameter of 0.375 inches with hose bead inlet type
• Two threaded outlets with 1/2-20 UNF fitting size
• Average flow rating of 31 gallons per hour

Product Features and Specifications

The Delphi MF0034 mechanical fuel pump is designed for gasoline fuel systems requiring a steady 6 psi pressure. It features a hose bead inlet with a 0.375-inch outside diameter, ensuring secure hose connections. The pump includes two threaded outlets sized at 1/2-20 UNF, allowing for reliable fuel delivery to the engine. With an average flow rating of 31 gallons per hour, this pump supports consistent fuel supply for optimal engine operation. The package contains the mechanical fuel pump, a gasket for proper sealing, and an instruction sheet to assist with installation.

Applications and Common Issues Addressed

• Replaces worn or leaking mechanical fuel pumps in Chevrolet S10 and S10 Blazer models
• Restores fuel delivery in GMC S15 and S15 Jimmy vehicles experiencing fuel starvation
• Solves low fuel pressure problems in Jeep Cherokee and Comanche engines
• Addresses fuel pump failures causing engine stalling or hesitation
• Suitable for restoring fuel system performance in Wagoneer models

Installation Notes and Tips

Before installation, verify compatibility with your vehicle's make and model. Ensure the fuel system is depressurized and the engine is cool. Use the included gasket to prevent leaks and follow the instruction sheet carefully. Tighten all fittings to manufacturer specifications, especially the 1/2-20 UNF threaded outlets. Inspect hoses for wear and replace if necessary to maintain a secure connection at the 0.375-inch hose bead inlet.

Quality Assurance and Warranty Information

Delphi mechanical fuel pumps meet standard replacement grade requirements, providing reliable performance for compatible Chevrolet, GMC, and Jeep vehicles. This product includes a gasket and installation instructions to support proper fitment and function. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.