Dorman 620-357 Engine Cooling Fan Blade

Overview of Dorman Engine Cooling Fan Blade 620-357

The Dorman 620-357 engine cooling fan blade is designed specifically for Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models. Engineered to maintain optimal engine temperature, this fan blade features a durable plastic construction with flexible blades to enhance airflow efficiency.

• 9 blades with a 535 mm diameter for effective cooling
• 2.5 mm blade thickness with forward align fin blade type
• Black finish with flexible plastic blades for durability and performance
• Steel hub with 73 mm depth and 152 mm bolt circle diameter
• Counterclockwise rotation and pusher airflow type
• Maximum operating speed of 3000 RPM
• Standard replacement grade, part number 620-357

Detailed Product Description

The Dorman 620-357 engine cooling fan blade is a direct replacement part designed to meet the cooling demands of heavy-duty Chevrolet and GMC vans, including the Express 2500, Express 3500, Savana 2500, and Savana 3500. Featuring nine forward align fin blades made from flexible plastic, this fan blade ensures efficient air movement to maintain engine temperature under various operating conditions. The black finish provides corrosion resistance, while the steel hub offers strength and stability with a 73 mm depth and a 152 mm bolt circle diameter for secure mounting. The fan blade rotates counterclockwise and operates as a pusher type, pushing air through the radiator to optimize cooling performance. This part is engineered to handle up to 3000 RPM, making it suitable for demanding engine environments.

Common Applications and Problem Resolution

• Replaces worn or damaged cooling fan blades on Chevrolet Express and GMC Savana vans
• Helps resolve engine overheating issues caused by inefficient airflow
• Addresses vibration or noise problems due to cracked or unbalanced fan blades
• Restores proper engine cooling system function after blade failure
• Prevents potential engine damage from inadequate cooling

Installation Notes and Tips

• Ensure compatibility with Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 before installation
• Mounting hardware is not included; reuse existing bolts or acquire appropriate fasteners
• Verify correct counterclockwise rotation during installation for proper airflow
• Inspect the hub and mounting surface for damage or debris before attaching the fan blade
• Follow vehicle manufacturer torque specifications to secure the fan blade

Quality Assurance and Warranty

Dorman engine cooling fan blades are manufactured to meet standard replacement grade requirements, ensuring reliable performance and durability. The 620-357 part undergoes quality control inspections to maintain consistent manufacturing standards. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or contact the manufacturer for exact warranty terms.