Delphi EX631048 Fuel Injector

Delphi EX631048 Diesel Fuel Injector Overview

The Delphi EX631048 is a remanufactured diesel fuel injector designed for light-duty diesel applications. Engineered for reliable performance, this fuel injector is compatible with select Chevrolet and GMC heavy-duty trucks, ensuring precise fuel delivery and efficient engine operation.

• Fuel Type: Diesel
• Terminal Type: Blade with 2 terminals
• Connector Shape: Oval, Female connector
• Mounting Hardware: Not included
• Gasket or Seal: Included (1 O-ring)
• Attachment Method: Clamp with bolt
• Body Material: Combination of metal and plastic
• Item Grade: Standard replacement, remanufactured
• Package Contents: Fuel injector and instruction sheet
• System Type: Light duty diesel injector

Detailed Product Description

The Delphi EX631048 fuel injector is specifically designed for diesel engines in Chevrolet and GMC trucks such as the Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD. This remanufactured injector features a durable metal and plastic body, ensuring longevity and resistance to harsh operating conditions. The injector uses a blade-type terminal with two terminals and an oval-shaped female connector for secure electrical connections. It includes a gasket and one O-ring to maintain a proper seal and prevent leaks. The clamp with bolt attachment method allows for a secure fitment without the need for additional mounting hardware, which is not included in the package.

Common Applications and Issues Addressed

• Restores proper fuel atomization and spray pattern in diesel engines
• Resolves rough idling and engine misfires caused by faulty injectors
• Improves fuel efficiency and reduces emissions in light-duty diesel trucks
• Eliminates hard starting issues related to injector failure
• Prevents fuel leaks and injector seal failures

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Use the included gasket and O-ring to maintain a proper seal
• Verify the oval female connector matches the vehicle wiring harness
• Clamp with bolt attachment requires proper torque to avoid injector movement
• Mounting hardware is not included; retain original hardware or source separately if needed

Quality Assurance and Warranty

The Delphi EX631048 fuel injector is a remanufactured standard replacement part that meets OEM specifications for fit, form, and function. Each injector undergoes rigorous testing to ensure reliable performance and durability. Delphi provides a limited warranty covering defects in materials and workmanship, offering confidence in the product’s quality for Chevrolet and GMC diesel truck owners.