My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Standard Motor Products RU-781 HVAC Blower Motor Resistor

(2005-2006 GMC Envoy; 2002-2006 GMC Envoy XL; 2004-2005 GMC Envoy XUV; 2002-2006 Chevrolet Trailblazer EXT; 2004-2008 Isuzu Ascender)

Manufacturer

Part Number

RU-781
Sale Price

$192.09

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Standard Motor Products RU-781 is a direct-replacement HVAC blower motor resistor designed to restore proper climate control fan speed operation in your vehicle. This resistor assembly regulates the electrical current flowing to the blower motor, enabling multiple fan speed settings for precise cabin temperature control.

Key Features:

  • Direct OE replacement design for reliable fit and function
  • Controls blower motor fan speeds for heating and air conditioning systems
  • Engineered to meet or exceed OEM specifications
  • Durable construction designed to withstand under-dash thermal cycling
  • Includes necessary electrical connector for simplified installation

Standard Motor Products is a trusted manufacturer of temperature control components with over 100 years of automotive aftermarket experience. The RU-781 resistor is precision-engineered to restore full functionality to blower motor speed controls when the original component fails. Common symptoms of a failed blower motor resistor include inoperative fan speeds (typically lower speeds fail first), fan only working on highest setting, or complete loss of blower motor function.

Products specifications

Fits

2005-2006 GMC Envoy; 2002-2006 GMC Envoy XL; 2004-2005 GMC Envoy XUV; 2002-2006 Chevrolet Trailblazer EXT; 2004-2008 Isuzu Ascender

Had problems with paying. They double charged me but was taken care of Thanks

Wow - super fast on line ordering! Best Price for item and free shipping, Thank you!

Excellent process. Easy to use website and great prices. Will be back for sure!

Smooth transaction. Item as expected. Thank you

Haven't installed the parts but am impressed with speed of delivery and quick shipping.

I ordered an AEM intake for my F-150 on Christmas day and received it on the 29th. I would absolutely recommend this site to anyone looking for car parts - they had the lowest price by far and shipped fast. Great job!

very good price fast shipping

Found Autoplicity by doing Google search looking for Corsa Sport Axle Back exhaust for my 2008 GT500. By far the best price, even cheaper than other big companies with free shipping by far. Ordered them on Thursday afternoon and got them 24 hours later in NY with the standard shipping. Could'nt be happier.

fast, polite service when we had a question

So far so good!

Great product, fast shipping

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy