Dorman 621-104 Engine Cooling Fan Blade

Reliable Engine Cooling Fan Blade for GM Trucks and SUVs

The Dorman 621-104 engine cooling fan blade is designed to maintain optimal engine temperature for select Cadillac, Chevrolet, and GMC vehicles. Featuring a durable plastic construction and a 9-blade design, this replacement fan blade helps ensure efficient airflow and cooling performance.

• 9 blades for balanced airflow and cooling efficiency
• 470 mm blade diameter suitable for heavy-duty applications
• White finish for corrosion resistance and durability
• Plastic blade material engineered for strength and lightweight operation
• Standard replacement grade for reliable performance
• Compatible with multiple GM models including Silverado, Sierra, Escalade, Yukon, and Suburban

Product Details and Specifications

The Dorman 621-104 engine cooling fan blade features a 470 mm diameter with nine blades constructed from durable plastic. This design supports effective engine cooling by promoting consistent airflow through the radiator. The white finish provides resistance to environmental factors, helping to extend the service life of the fan blade. Although mounting hardware is not included, this fan blade is engineered as a direct replacement for factory-installed components on various GM trucks and SUVs.

Compatible Vehicles and Applications

This engine cooling fan blade is compatible with a range of General Motors vehicles, including Cadillac Escalade, Escalade ESV, and Escalade EXT models. It also fits Chevrolet Silverado 1500, 2500, and 3500 series trucks, as well as GMC Sierra 1500, 2500, and 3500 series trucks. Additionally, it suits Suburban 1500 and 2500, Tahoe, Yukon, Yukon XL 1500, and Yukon XL 2500 models. The Dorman 621-104 is designed to meet the cooling demands of these vehicles, ensuring proper engine temperature regulation.

Common Issues Addressed by This Fan Blade

• Overheating caused by damaged or worn fan blades
• Reduced cooling efficiency due to imbalanced or broken blades
• Excessive engine temperature fluctuations during heavy load or towing
• Noise or vibration from cracked or loose fan blades
• Replacement of factory fan blades showing signs of wear or damage

Installation Notes and Tips

Installation of the Dorman 621-104 engine cooling fan blade requires removal of the existing fan blade assembly. Since mounting hardware is not included, retain and reuse the original fasteners or acquire compatible hardware separately. Ensure the fan blade is properly aligned and securely fastened to avoid imbalance or vibration. It is recommended to inspect the fan clutch and motor during installation to confirm overall cooling system integrity.

Quality Assurance and Warranty

Dorman engine cooling fan blades are manufactured to meet standard replacement quality requirements. The 621-104 part number undergoes quality checks to ensure durability and fitment accuracy for the specified GM vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.