Dorman 502-503 Fuel Injector

Reliable Diesel Fuel Injector for Ford E-350 and F-Series

The Dorman 502-503 fuel injector is engineered for direct injection diesel engines, designed specifically for Ford E-350 Club Wagon, Econoline, Super Duty models, and F-250, F-350 Super Duty trucks. This injector ensures precise fuel delivery and optimal engine performance for your diesel-powered Ford vehicle.

Key Features of the Dorman 502-503 Fuel Injector

• Maximum outside diameter of 40 mm for proper fitment
• Compatible with diesel fuel systems using direct injection technology
• Blade terminal type with 2 terminals (male) and female connector for secure electrical connection
• Includes 3 O-rings and gasket/seal to prevent leaks and ensure tight sealing
• Constructed with durable steel body material for long-lasting performance
• Bolt-on attachment method for straightforward installation
• Package contains one fuel injector unit

Detailed Description of the Dorman 502-503 Fuel Injector

This fuel injector is designed to meet the specific requirements of Ford diesel engines found in E-350 Club Wagon, Econoline, and Super Duty models, as well as F-250 and F-350 Super Duty trucks. The injector features a steel body for durability and is built for direct fuel injection systems, ensuring efficient fuel atomization and combustion. The blade terminal type with two terminals (male) and a female connector provides reliable electrical connectivity. Included O-rings and gasket help maintain a secure seal, preventing fuel leaks and maintaining system integrity. The bolt-on attachment method simplifies installation without the need for additional mounting hardware.

Common Applications and Issues Addressed

• Restores proper fuel delivery in Ford E-350 and F-250 diesel engines
• Resolves rough idling and engine misfires caused by faulty injectors
• Eliminates fuel leaks due to worn seals or O-rings
• Improves engine performance and fuel efficiency in direct injection systems
• Addresses injector electrical connection problems with blade terminal design

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid injury
• Use the included gasket and O-rings to prevent fuel leaks
• Verify the injector’s blade terminal orientation matches the vehicle’s wiring harness
• Tighten bolts securely but avoid over-torquing to prevent damage
• Inspect surrounding components for wear or damage during replacement

Quality Assurance and Warranty Information

Dorman fuel injectors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 502-503 injector undergoes rigorous quality control to ensure reliable performance in Ford diesel engines. This product includes a limited warranty against defects in materials and workmanship, providing confidence in its durability and operational integrity.