Dorman Engine Cooling Fan Assembly 621-410 for 2009–2013 Dodge/Ram 1500 — Direct-fit, Lab-tested Motor

The Dorman 621-410 Engine Cooling Fan Assembly is a direct-fit replacement radiator fan module engineered to restore cooling performance for select 2009–2013 Dodge and Ram 1500 trucks.

When your truck’s cooling fan has failed or is showing signs of wear, choosing a replacement that matches the original equipment’s fit and function saves installation time and avoids further issues. Dorman designed this assembly to match the factory dimensions, materials, and motor characteristics so it bolts in with minimal modification and performs like the original part.

How does this fan assembly match original equipment performance?

The 621-410 is built to the same basic specifications as the stock radiator fan assembly, including motor output and mounting points, so it circulates air and manages engine heat like the factory unit. Dorman subjects the motors to laboratory testing to verify consistent operation under load and temperature extremes.

• Exact-fit mounting locations and connectors for the specified model years
• Motors tested in lab conditions to validate durability
• Same materials and construction approach as original assemblies

What vehicles and model years is this compatible with?

This assembly is produced to fit particular Dodge and Ram 1500 configurations; verifying your exact trim and year before ordering ensures correct fitment. Use the vehicle garage or fitment tool on the product page to confirm compatibility with your truck.

• Dodge Ram 1500: 2009, 2010
• Ram 1500: 2011, 2012, 2013
• Confirm trim and options via the online garage tool prior to purchase

Why choose this Dorman assembly over an OEM dealer part?

Dorman aims to deliver equivalent fit and performance while offering savings versus dealership prices. The assembly is a complete unit that reduces the need to source separate components and simplifies installation, keeping downtime and labor costs lower.

• Cost-effective alternative to OEM dealer pricing
• Complete assembly arrives ready for installation—no need to transfer parts
• Manufactured and tested for dependable operation in everyday driving

How do I install and verify the replacement fits correctly?

Installation typically follows the original removal steps: disconnect power, unbolt the old assembly, and secure the new unit using factory bolt locations and electrical connectors. After installation, verify fan operation at idle and under load to confirm proper installation.

• Disconnect battery and electrical connectors before removal
• Mount using original bolt pattern and fasteners for secure fit
• Test fan switching and airflow after installation for proper function

Who this is for: The Dorman 621-410 Engine Cooling Fan Assembly is intended for owners and technicians working on 2009–2013 Dodge/Ram 1500 trucks who need a dependable, cost-effective replacement for a worn or inoperative radiator fan. It’s a practical choice for DIY mechanics, independent repair shops, and fleet maintainers who want a full assembly that matches factory fitment and reduces installation complexity.