Delphi FT4037 Fuel Transfer Unit

Reliable Fuel Transfer Unit for Chevrolet and GMC Heavy-Duty Trucks

The Delphi FT4037 fuel transfer unit is designed specifically for diesel fuel systems in Chevrolet and GMC heavy-duty trucks. Engineered for in-tank installation, this unit ensures consistent fuel delivery and accurate fuel level readings for models like the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD.

• Compatible with Chevrolet and GMC Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD
• Fuel type: Diesel
• In-tank fuel transfer unit with integrated fuel level sender assembly
• Outlet outside diameter: 0.375 inches with quick connect outlet type
• Includes gasket or seal for secure installation
• Four male blade terminals with a terminal quantity of 4
• Resistance values: 250 ohms empty, 40 ohms full for accurate fuel level measurement
• Package includes fuel transfer unit with float arm, seal, and instruction sheet

Technical Details and Features

The Delphi FT4037 fuel transfer unit is a standard replacement part designed for diesel fuel systems in select Chevrolet and GMC heavy-duty trucks. It features an in-tank design that integrates a fuel level sender assembly, providing precise fuel level readings through resistance values of 250 ohms when empty and 40 ohms when full. The unit uses a quick connect outlet type with an outlet outside diameter of 0.375 inches, facilitating straightforward fuel line connections. Four male blade terminals ensure reliable electrical connections, while the included gasket or seal helps maintain a secure and leak-free installation. The inlet type is strainer, although a separate strainer is not included with this unit.

Applications and Problem Resolution

• Restores proper fuel delivery in diesel-powered Chevrolet and GMC heavy-duty trucks
• Resolves inaccurate fuel gauge readings caused by faulty fuel level sender assemblies
• Addresses fuel pump failures related to in-tank transfer unit malfunctions
• Prevents fuel leaks with included gasket or seal
• Supports reliable engine performance by maintaining consistent fuel flow

Installation Notes and Tips

Installation of the Delphi FT4037 fuel transfer unit requires access to the fuel tank of compatible Chevrolet and GMC trucks. Ensure the vehicle is parked on a level surface and the fuel tank is depressurized before beginning installation. The included gasket or seal must be properly seated to prevent leaks. Connect the four male blade terminals securely and verify the quick connect outlet fittings are properly engaged. Follow the instruction sheet provided for detailed installation steps and safety precautions.

Quality Assurance and Warranty

Delphi manufactures the FT4037 fuel transfer unit to meet standard replacement part specifications, ensuring compatibility and reliable performance in diesel fuel systems. This product includes a fuel level sender assembly and is backed by Delphi's quality standards. Warranty coverage details should be confirmed with the point of purchase or Delphi directly.