This radiator cooling fan relay is a new, aftermarket replacement part. It is a direct replacement for a damaged or malfunctioning relay. After years of hot and cold cycles, these relays tend to start malfunctioning causing the fans to be inoperative.


  • Radiator Cooling Fan Relay
  • Replaces dealer part number: 6W1Z-8B658-AC, 6W1Z8B658AC
  • 100% factory tested
  • Direct replacement
  • Built to strict quality control standards

This radiator cooling fan relay makes a great replacement and has good cost savings over a dealer unit.

Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

5.0 / 5.0
3 Reviews
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Perfect Match
I bought one of these elsewhere installed and fan did not run. I thought i would have to replace the computer. As these are virtually impossible to test for average do it yourselfer i decided to reorder from 1A Auto. I received the part , installed and everything works perfectly.
June 7, 2018
3 months ago
Quick Fix for Mercury
Exactly what i needed for my 2009 Mercury Grand Marquis. Price on this site was less than 1/3 of what retail auto stores were asking in my area. I'm satisfied.
March 14, 2018
5 months ago
Perfect fit
Works like a champ and litterally 100 dollars cheaper than in a parts store e
July 10, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 11 answers
Dose it come with wire connectors?
Franklin W on May 2, 2018
BEST ANSWER: I bought this as a unit,everything was included,no extra wire connectors are needed,everything plugged in as original unit
Will this work on the 2010 model?
Adam R on Jul 15, 2018
BEST ANSWER: This fits a few vehicles for the 2010 model year. Can you provided your full year, make and model to confirm fit?

Vehicle Fit

Year Make Model Description
2006-2011Ford Crown Victoria Ford Crown Victoria Radiator Cooling Fan Relay
2006-2011Lincoln Town Car Lincoln Town Car Radiator Cooling Fan Relay
2006-2011Mercury Grand Marquis Mercury Grand Marquis Radiator Cooling Fan Relay

This part replaces:

  • OE # 6W1Z8B658AC
  • Dorman 902-209
Part #: 1AZMX00101

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout