Dorman 621-243 Engine Cooling Fan Assembly

Overview of Dorman Engine Cooling Fan Assembly 621-243

The Dorman Engine Cooling Fan Assembly 621-243 is designed specifically for Infiniti M35 and M45 models. This radiator fan assembly includes dual fans and a durable plastic shroud to ensure efficient engine cooling and reliable performance.

• Compatible with Infiniti M35 and M45 vehicles
• Includes two plastic fan blades for optimal airflow
• Black plastic shroud included for secure mounting and protection
• Brushed motor type with three terminals and one male connector
• Part number 621-243 for precise fit and replacement

Detailed Product Description

This engine cooling fan assembly from Dorman features a brushed motor type that provides consistent operation for your Infiniti M35 or M45. The assembly includes two plastic fan blades designed to maximize airflow through the radiator, helping to maintain proper engine temperature. The black plastic shroud is included to protect the fan blades and ensure proper airflow direction. With three terminals and a single male connector, installation is straightforward and compatible with the vehicle’s existing wiring harness. The part number 621-243 ensures this assembly matches factory specifications for a direct replacement.

Common Applications and Problem Resolution

• Replaces faulty or worn cooling fan assemblies in Infiniti M35 and M45
• Addresses engine overheating issues caused by inadequate airflow
• Resolves noisy or non-functioning radiator fan motor problems
• Fixes electrical connection issues with the three-terminal motor design
• Restores proper cooling system performance for improved engine longevity

Installation Notes and Tips

Before installation, verify compatibility with your Infiniti M35 or M45 using the part number 621-243. Disconnect the battery to prevent electrical shorts. Carefully remove the old fan assembly, noting the wiring connections and mounting points. The included black plastic shroud should align with existing mounting brackets for a secure fit. Connect the three-terminal motor wiring harness using the male connector provided. Test the fan operation before reassembling other components to ensure proper function.

Quality Assurance and Warranty Information

Dorman manufactures this engine cooling fan assembly to meet or exceed OEM standards for fit, form, and function. The use of durable plastic materials for the fan blades and shroud contributes to long service life. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms related to part number 621-243.