Dorman 502-511 Fuel Injector

Overview of the Dorman 502-511 Fuel Injector

The Dorman 502-511 fuel injector is designed specifically for diesel engines in Chevrolet and GMC heavy-duty trucks. Engineered for direct fuel injection, this injector ensures precise fuel delivery for optimal engine performance in models like the Silverado 2500 HD and Sierra 3500.

• Maximum outside diameter: 21 mm
• Fuel type: Diesel
• Threaded terminal type with 2 male terminals
• Includes one gasket or seal and one O-ring
• Steel body construction for durability
• Clip attachment method for secure mounting
• Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500
• Package contains one fuel injector

Detailed Product Description

The Dorman 502-511 fuel injector is built with a steel body to withstand the demanding conditions of diesel engines in heavy-duty trucks. Its direct injection design allows for efficient fuel atomization, improving combustion and engine responsiveness. The injector features a threaded terminal type with two male terminals and a male connector gender, ensuring reliable electrical connections. The included gasket or seal and O-ring help maintain a tight seal to prevent leaks. The clip attachment method secures the injector firmly in place without the need for additional mounting hardware.

Compatible Vehicles and Applications

This fuel injector is compatible with specific Chevrolet and GMC heavy-duty truck models, including:

• Chevrolet Silverado 2500 HD
• Chevrolet Silverado 3500
• GMC Sierra 2500 HD
• GMC Sierra 3500

It is designed for diesel fuel systems with direct injection, making it suitable for maintaining or restoring fuel delivery performance in these vehicles.

Common Issues Addressed by the Dorman 502-511 Fuel Injector

• Engine misfires or rough idling due to faulty fuel delivery
• Reduced fuel efficiency from inconsistent injection
• Hard starting or failure to start in diesel engines
• Excessive exhaust smoke caused by improper fuel atomization
• Loss of engine power under load conditions

Installation Notes and Tips

When installing the Dorman 502-511 fuel injector, ensure the O-ring and gasket are properly seated to prevent fuel leaks. The clip attachment method requires careful alignment to secure the injector firmly. Since mounting hardware is not included, retain original clips or source compatible replacements if needed. Verify electrical connections to the threaded male terminals for proper injector operation.

Quality Assurance and Warranty

Dorman fuel injectors are manufactured to meet or exceed OEM specifications, using durable steel bodies and quality seals to ensure long service life. While specific warranty details for part number 502-511 should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in materials and workmanship.