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.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

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.

4.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
works great but small modification was dated
I had I had to shave about an eighth of an inch one of the mounting tabs to get it to fit. Not a big deal, and the part works great
October 13, 2018
3 weeks ago
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
5 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
7 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
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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:

  • Dorman 902-209
  • OE # 6W1Z8B658AC
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