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.”

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. Please keep your invoice for proof of this warranty.

  1. step : Remove the AC/Heater Fan speed control resistor (0:56)
    • Remove the two 7 mm bolts securing the plastic cover under the passenger side dash.
    • Unclip the wiring from the panel.
    • Unplug the wiring harness from your resistor
    • Open the glove compartment and pull the hook up releasing the glove compartment.
    • Unplug the connection to the blower motor and the resistor.
    • Unbolt the two 7/32 in bolts and remove the resistor.
  2. step : Install the new AC/Heater Fan Speed Control Resistor (3:43)
    • Insert the new resistor and bolt into place with your 7/32 in socket and ratchet.
    • Plug in the wiring, both to the resistor and the blower motor.
    • Test your AC/heat fan to make sure it’s working properly.
    • Close the glove box.
    • Bolt the plastic cover back into place with your 7 mm socket and ratchet.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • 7mm Socket

  • Sockets - SAE

  • 7/32 Inch Socket

4.7 / 5.0
23 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
17
5
1
0
0
Great product, needs a warning
Everything I bought from 1A Auto has been perfect in addition with the helpful vidoes, I have been able to make repairs in my garage for the fraction of the cost. This product came to me very quickly and it was in perfect condition. The only thing is that with my year model and type of truck the installation video had a different part that he was installing. This product requires you to cut the three pin connector from the climate control and solder to the red, black, and purple wires on the product. Just wanted to give you guys a heads up. Thank you for the great product at a great price.
March 20, 2017
Purchased
1 year ago
Fast & Affordable
My AC stopped working on my 2006 GMC Envoy. After checking all the fuses I determined it had to be the Blower Relay. There were lots of choices online but I found 1A had the best price and free shipping. Their website was very easy to use and the product arrived in just 3 days. I am very happy to have my AC working again. Thanks 1A.
July 19, 2017
Purchased
9 months ago
gm blower resister
I am very satisfied with the blower motor resistor and jumper harness everything was the same as the factory with the exception of it being the updated resistor which worked out to be great.
June 22, 2017
Purchased
1 year ago
The part was perfect and the installion video was very helpful!!!
February 25, 2017
Purchased
1 year ago
It worked great.
Easy to install and worked perfect. Quick fix. The hardest part was to solder the three wires to the old wiring harness but other than that, no problem. I recommend the manufacture supply a jumper to eliminate the need to solder and wires.
June 27, 2017
Purchased
1 year ago
Blower motor resistor
Excellent product fixed what was wrong in my vehicle and the video that was with the product on your site helped explained how to install it
September 29, 2017
Purchased
7 months ago
Easy to install and works like a brand new heater and keeps the truck nice and warm now.
January 23, 2017
Purchased
1 year ago
quick ship, quick fix.
price was excellent. shipping is very quick and free. part is exact duplicate of original. I will continue saving money with 1AAuto when needing parts for my Silverado. Thanks.
January 29, 2017
Purchased
1 year ago
2004 Chevy Trailblazer Resistor Motor
The part works perfectly. The fitting was slightly off as my 2004 Chevy Trailblazer has a different wire harness port. But once I cut off the wiring harness from the new component from 1A and splice the wires it worked perfectly. Thank ya'll!
August 7, 2017
Purchased
9 months ago
Blower Motor Control
The blower motor control works great. The installation videos were right on and easy to follow. Very happy and warm.
February 12, 2018
Purchased
2 months 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 6 answers
What do I do with the extra wires? Factory harness has 3 wires.
Rich K on Jul 17, 2017
BEST ANSWER: You may visit http://www.wellsve.com/custom_searches/pdf/instrc_file/ja1639_EN.pdf#zoom=100 as a source of installation assistance.
Why is thereno air coming out of vents on front panel drive and passenger side? Defrost and rear work.
Sandee74 on Jul 23, 2017
BEST ANSWER: The blower modual has just gone bad

Vehicle Fit

  • 2004-2006 Buick Rainier Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade ESV Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Cadillac Escalade EXT Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Avalanche 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Avalanche 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy SSR Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 1500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003 Chevy Silverado 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 Chevy Silverado 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 1500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 Chevy Silverado 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 2500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 2500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Silverado 3500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 Chevy Silverado 3500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Suburban 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Suburban 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2009 Chevy Trailblazer Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Chevy Trailblazer EXT Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2009 GMC Envoy Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Envoy XL Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2004-2005 GMC Envoy XUV Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 1500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003 GMC Sierra 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 GMC Sierra 1500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 1500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 GMC Sierra 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 2500 HD Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 2500 HD Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Sierra 3500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2007 GMC Sierra 3500 Classic Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon XL 1500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 GMC Yukon XL 2500 Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2006 Isuzu Ascender Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2003-2004 Olds Bravada Blower Motor Module with Harness for Models with Automatic Temperature Control
  • 2005-2006 Saab 9-7X Blower Motor Module with Harness for Models with Automatic Temperature Control

This part replaces:

  • OE # 19260762
  • OE # 52495874
  • OE # 89018778
  • OE # 89018964
  • OE # 89019351
  • Standard Motor Products RU-631
  • Wells JA1639
Part #: 1AHBR00100

Ships Same Day for orders placed by 4 P.M. ET

How-to Video:

(07:03 min)