HomeBelts and Cooling > Cooling Fan, Clutch and MotorDorman 621-573 Engine Cooling Fan Assembly
Part #: 621-573

Dorman 621-573 Engine Cooling Fan Assembly

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⚙️ 10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Kia, Optima
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Reliable Engine Cooling Fan Assembly for Kia Optima

The Dorman 621-573 engine cooling fan assembly is designed specifically for Kia Optima models, providing efficient cooling performance to maintain optimal engine temperature. This electrical fan assembly features a durable plastic shroud and an 8-blade forward align fin fan to ensure consistent airflow.

Key Features of Dorman 621-573 Cooling Fan Assembly

  • Voltage: 13.6V for standard electrical system compatibility
  • Brushed motor type for reliable operation
  • Single fan quantity with 8 plastic blades
  • Black plastic shroud included for proper mounting and airflow direction
  • Counterclockwise fan rotation to match OEM specifications
  • 3 male terminals and 1 male connector for secure electrical connections
  • 460 mm fan diameter with 5 mm shaft diameter

Detailed Description of the Engine Cooling Fan Assembly

The Dorman 621-573 engine cooling fan assembly is engineered to meet the cooling demands of Kia Optima vehicles. Featuring a brushed motor and a plastic fan blade design, this assembly delivers consistent airflow to the radiator, helping to prevent engine overheating. The included black plastic shroud ensures proper air channeling and protects the fan blades. With a 460 mm diameter and counterclockwise rotation, this fan assembly matches the original equipment specifications for seamless integration.

Common Issues Addressed by This Cooling Fan Assembly

  • Engine overheating due to faulty or worn cooling fan
  • Reduced airflow from damaged or inefficient fan blades
  • Electrical failures in the fan motor causing intermittent operation
  • Cooling system inefficiency from missing or broken fan shroud
  • Noise or vibration caused by imbalanced or damaged fan components

Installation Notes and Tips

When installing the Dorman 621-573 cooling fan assembly on your Kia Optima, ensure the electrical connections match the 3-terminal male connector for proper fitment. Verify the fan rotation direction is counterclockwise to align with the vehicle’s cooling system. The included plastic shroud should be securely mounted to maintain airflow efficiency and protect the fan blades. It is recommended to inspect the radiator and surrounding components for damage or debris before installation.

Quality Assurance and Warranty Information

Dorman engine cooling fan assemblies are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This product undergoes rigorous quality control testing to provide consistent operation. Warranty coverage details can be obtained from the product packaging or Dorman’s official documentation, offering peace of mind with your purchase.

BrandDorman
Part Number621-573
Blade MaterialPlastic
Blade TypeForward Align Fin
Connector GenderMale
Diameter460 mm
Electrical Or MechanicalElectrical
Fan 1 Blade Quantity8
Fan 1 Diameter460
Fan 2 Blade Quantity0
Fan Quantity1
Fan RotationCounterclockwise
Flat Side On ShaftNo
Grade TypeRegular
Motor TypeBrushed
Package ContentsRadiator Fan Assembly
Shaft Diameter5
Shroud ColorBlack
Shroud IncludedYes
Shroud MaterialPlastic
Terminal GenderMale
Terminal Quantity3
Voltage13.6

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2020KiaOptima1.6LL4N/A
2020KiaOptima2.0LL4GASN/A
2019KiaOptima1.6LL4N/A
2019KiaOptima2.0LL4GASN/A
2018KiaOptima1.6LL4N/A
2018KiaOptima2.0LL4GASN/A
2017KiaOptima1.6LL4N/A
2017KiaOptima2.0LL4GASN/A
2016KiaOptima1.6LL4N/A
2016KiaOptima2.0LL4GASN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25380D5280623750

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.