Dorman 621-345 Engine Cooling Fan Blade

Overview of the Dorman 621-345 Engine Cooling Fan Blade

The Dorman 621-345 engine cooling fan blade is designed specifically for select Nissan models, including the Frontier, NV1500, NV2500, NV3500, Pathfinder, and Xterra. Engineered to maintain optimal engine temperature, this fan blade ensures reliable airflow and cooling performance under demanding conditions.

• 10 durable plastic blades with forward align fin design
• 490 mm blade diameter for effective air movement
• Green flexible blades to reduce stress and vibration
• Metal hub with 20 mm depth and 163 mm bolt circle diameter
• Counterclockwise rotation with a maximum speed of 3000 RPM
• Pusher airflow type for efficient engine cooling
• Standard replacement grade for reliable performance
• Mounting hardware not included

Detailed Product Description

The Dorman 621-345 engine cooling fan blade features 10 flexible plastic blades arranged in a forward align fin pattern, optimized for pusher airflow. The 490 mm diameter blades are designed to move air efficiently through the radiator, helping to maintain proper engine temperature. The green blades offer flexibility to absorb vibrations and reduce stress on the fan assembly, extending the lifespan of the component. The metal hub, measuring 20 mm in depth and with a 163 mm bolt circle diameter, provides a sturdy mounting base for the blades. This fan blade rotates counterclockwise and is rated for a maximum speed of 3000 RPM, making it suitable for the cooling demands of Nissan Frontier, NV1500, NV2500, NV3500, Pathfinder, and Xterra models. As a standard replacement part, it meets OEM specifications for fit and function.

Compatible Nissan Models and Applications

• Engine cooling fan blade for Nissan Frontier models
• Replacement part for Nissan NV1500, NV2500, and NV3500 vans
• Suitable for Nissan Pathfinder cooling systems
• Compatible with Nissan Xterra engine cooling assemblies

Common Issues Addressed by This Fan Blade

• Overheating caused by damaged or worn fan blades
• Reduced airflow due to cracked or inflexible blades
• Excessive vibration from broken or unbalanced fan components
• Engine cooling inefficiency resulting in higher operating temperatures
• Noise issues related to deteriorated fan blade condition

Installation Notes and Tips

When installing the Dorman 621-345 engine cooling fan blade, ensure the fan rotates counterclockwise as specified. Verify the bolt circle diameter of 163 mm matches your vehicle’s hub. Since mounting hardware is not included, retain or replace bolts as necessary. Inspect the fan clutch and motor assembly for wear during installation to ensure optimal performance. Proper alignment and secure fastening are critical to prevent vibration and premature wear.

Quality Assurance and Warranty

Dorman provides this engine cooling fan blade as a standard replacement part manufactured to meet or exceed OEM standards. The plastic blades and metal hub are engineered for durability and consistent performance. While mounting hardware is not included, the product is backed by Dorman’s quality assurance policies. Please refer to Dorman’s warranty terms for specific coverage details.