Blower Motor Resistor - 1AHBR00007

Warranty & Shipping
How-To & Tools
Product Reviews
Vehicle Fit

This Dodge Truck & Jeep Grand Cherokee blower motor resistor is a new, aftermarket replacement part. It is just what you need to bring your heating and A/C blower system back to good working order! On most vehicles it is mounted to the HVAC unit inside the passenger compartment. It can be accessed from the passenger foot well area.


  • Brand New Resistor
  • Replaces dealer part number: 4720278
  • Direct replacement
  • Built to strict quality control standards
  • 100% tested prior to leaving the factory
  • 4 Blade terminal

If you are experiencing intermittent stopping during use or the fan only works in one position this may be your solution!

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.

Left Hand Drive Note:

“All of our auto parts are intended for Left Hand Drive USDM vehicles and might not have been tested on Right Hand Drive platforms. If your vehicle is Right Hand Drive, please do your research prior to making a purchase to ensure the part is correct for your specific vehicle.”

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.

  1. step : Removing the Blower Motor Resistor (0:32)
    • Locate the resistor under the glove box on the HVAC box
    • Disconnect the wiring harness
    • Remove the two Phillips screws from the resistor
    • Remove the resistor
  2. step : Installing the Blower Motor Resistor (1:51)
    • Insert the blower resistor into place
    • Tighten the two Phillips screws to the resistor
    • Connect the wiring harness

Tools needed for replacement:

    Screwdrivers & Related

  • Phillips Head Screwdriver

4.69/ 5.0
16 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Received a cracked resistor
Was already cracked when I recieved it in the mail Installed it anyways because I figured it would get me by Resister crapped out about 1month after installation
February 15, 2017
I was able to install this resistor in 2 minutes flat. It worked perfectly when the fan switch was turned on and has continued to function flawlessly. I am happy with the resistor, the quick delivery and the Price Thanks.
July 17, 2017
Double wow!
After shopping around, online and with local mechanics/ dealerships, I came across a YouTube video uploaded by 1aauto. After watching the video, I went to the website, products and service were well reviewed. I order the recommended parts, they arrived earlier than expected (yippee)! Parts were well packaged and identical to he original parts. Installation was exactly as demonstrated on video, very simple. I again have a working fan that is less noisy than the original. (Bought new, now 80,000 mi). Important to note, both parts needed replaced. The resistor was cracked in several places and the fan cage did not spin freely. Great recommendation and awesome pricing! I highly recommend 1aauto
August 14, 2017
Worked just as good as the OEM parts
Great parts at a great price will buy again from 1a-Auto... all parts fit just like the OEM-Parts!!!!
August 30, 2017
Good product
Great item. Works as it should. Direct replacement for this factory item.Way cheaper than local part atores.
September 4, 2017
Resister install
Very easy install ,quickly removal the part replaces the original very well , I would tell my friends or any one that needs these parts to get them from
November 22, 2017
Perfect worked well easy to install fast delivery no complaints!
November 26, 2017
Motor Resistor replacement
Easy to find on the site, Great price, quick shipping and simple installation. Have been telling friends to go onto 1A Auto you cant go wrong.
December 17, 2017
works great!!!!!!
January 27, 2018
Best value to be had and got to me in 2 days.
Title says it all, really. This was to replace the resistor on a 2007 Ram. Product arrived well packaged within 2 days. Took me less than 5 minutes to install. Works perfectly.
February 8, 2018
Always great parts
I really like this Automotive online store. It always has the parts I need at a reasonable price. And the shipping is very fast to will again be getting my parts from A-1 auto... Marc from Pleasantville NJ..
February 24, 2018
Fast, worked, and the install video finally made me do it
After dealing with an intermittent blower for several months, I finally stumbled on the how-to video from 1A auto. The part was linked to the instruction, it was inexpensive and it looked easy to change-great sales model! More importantly, it fixed my blower problems before the Louisiana summer gets here.
April 16, 2018
Works perfect!
Resistor arrived quickly, dropped it into my 2006 RAM and presto! -- low speed air is restored!
November 8, 2018
easy peasy
I thought I had a big job to do.( Looking at fan switch) Install was very easy and results GREAT. Thank You
November 17, 2018
Was shipped as expected. The part was easy to install and works great.
November 28, 2018
Fixed my issue with only working on high
Speed would only work on high, replaced the blower motor resistor and now all four levels work with the heat. I would purchase again.
February 14, 2019
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
1994-2006Dodge Ram 1500 Truck Dodge Ram 1500 Truck Blower Motor Resistor
2007-2008Dodge Ram 1500 Truck Dodge Ram 1500 Truck without Auxiliary Air Conditioning Blower Motor Resistor
1994-2006Dodge Ram 2500 Truck Dodge Ram 2500 Truck Blower Motor Resistor
2007-2009Dodge Ram 2500 Truck Dodge Ram 2500 Truck without Auxiliary Air Conditioning Blower Motor Resistor
1994-2006Dodge Ram 3500 Truck Dodge Ram 3500 Truck Blower Motor Resistor
2007-2009Dodge Ram 3500 Truck Dodge Ram 3500 Truck without Auxiliary Air Conditioning Blower Motor Resistor
1993-1996Jeep Grand Cherokee Jeep Grand Cherokee Blower Motor Resistor
1997-1999Jeep Grand Cherokee Jeep Grand Cherokee Blower Motor Resistor with Manual Temperature Control
Part #: 1AHBR00007

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(02:20 min)