Engine cooling fans often burn out because they're under-engineered for extreme duty. This Dorman OE FIX solution features upgraded computer control chips, a more effective heat sink and enhanced software to perform at higher temperatures longer.

Radiator Fan Assembly with Upgraded Controller 621-353XD Features:

• Fits 2006-2011 Ford Crown Victoria; 2006-2011 Lincoln Town Car; 2006-2011 Mercury Grand Marquis
• Upgraded design — this replacement radiator fan assembly features multiple enhancements over original equipment to improve longevity and performance
• Improved heat dissipation — features a smart circuit board layout, heat sink design and thermal pad for to prevent burn out
• Enhanced software — adjustments to controller extend operational performance at highest temperature thresholds
• Ideal for law enforcement — made to endure extreme duty in specific Ford and Lincoln police vehicle applications