Dorman 620-421 Engine Cooling Fan Assembly

Overview of the Dorman Engine Cooling Fan Assembly 620-421

The Dorman 620-421 engine cooling fan assembly is designed specifically for Infiniti I35 and Nissan Maxima models. This assembly includes two plastic fan blades and a black plastic shroud, engineered to maintain optimal engine temperature and improve cooling efficiency.

• Motor Type: Brushed motor for reliable operation
• Fan Quantity: Dual fan blades for enhanced airflow
• Shroud Included: Yes, made of durable black plastic
• Connector Quantity: Two connectors with four male terminals
• Blade Material: Plastic for lightweight and corrosion resistance

Detailed Product Description

The Dorman 620-421 engine cooling fan assembly features a brushed motor type that provides consistent performance under various driving conditions. The assembly includes two plastic fan blades housed within a black plastic shroud, which helps direct airflow efficiently through the radiator. The shroud is designed to fit precisely on Infiniti I35 and Nissan Maxima vehicles, ensuring proper installation and optimal cooling. With two connectors and four male terminals, the electrical connections are secure and compatible with the vehicle’s wiring harness.

Compatible Vehicles and Applications

This engine cooling fan assembly is compatible with the following vehicles:

• Infiniti I35
• Nissan Maxima

It is intended to replace faulty or worn cooling fan assemblies that may cause overheating or reduced engine performance.

Common Issues Addressed by This Cooling Fan Assembly

• Engine overheating due to insufficient airflow
• Cooling fan motor failure or inconsistent operation
• Damaged or cracked fan blades affecting cooling efficiency
• Electrical connector issues causing fan malfunction
• Shroud damage leading to improper airflow direction

Installation Notes and Tips

• Ensure the vehicle is turned off and cooled before installation
• Disconnect the battery to prevent electrical shorts
• Verify connector compatibility with the vehicle’s wiring harness
• Inspect mounting points and hardware for damage before installation
• Test the fan assembly operation after installation to confirm proper function

Quality Assurance and Warranty Information

Dorman manufactures this engine cooling fan assembly to meet or exceed OEM specifications for fit, form, and function. The part number 620-421 undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.