Designed to put fan-speed control back where it belongs, the Dorman blower motor resistor 973-434 is a direct replacement for the 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon and 2003-2006 Chevrolet SSR. See the "Vehicles it fits" section for engine details.
The blower motor resistor helps regulate the current sent to the blower motor, which sets how fast the fan moves air through the vents at each setting. This kit pairs a resistor with a harness pigtail to replace an original equipment resistor that has overheated or corroded.
- Direct replacement: the resistor and harness kit is built to directly replace the original equipment on select vehicle years, makes and models.
- Complete kit: each kit supplies a resistor plus a harness pigtail, which Dorman calls essential for most repairs.
- Performs like the original: made to perform like original equipment, intended to return full HVAC operation when a failed resistor is the cause.
- Trustworthy quality: backed by Dorman's team of engineers and quality specialists in the USA.
Signs this part may need replacing include a blower that runs on only some settings, a blower that will not run at any setting, or a resistor or connector showing heat damage or corrosion. Diagnose the cause first, since a switch or motor fault can produce similar symptoms.
Interchange: BMR047 · 4P1453 · RU1056 · 20285 · 15218254 · 89018331 · 2BMR0029 · RU363 · JA1586
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
BMR047, 4P1453, RU1056, 20285, 15218254, 89018331, 2BMR0029, RU363, JA1586
Frequently Asked Questions
What does a Dorman HVAC blower motor resistor kit do?
The resistor helps regulate the current sent to the blower motor, so each fan-speed setting runs as intended. This kit replaces an overheated or corroded original equipment resistor.
What comes in the Dorman blower motor resistor kit?
Each kit includes a resistor and a harness pigtail. Dorman notes that the pigtail is essential for most repairs.
Which vehicles does part 973-434 fit?
It is a direct replacement for the 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon and 2003-2006 Chevrolet SSR. See the "Vehicles it fits" section for engine details.
What are signs a blower motor resistor may need replacing?
Possible signs include a blower that runs on only some settings or not at all, or heat damage or corrosion on the resistor or connector. Diagnose first, as a switch or motor fault can cause similar symptoms.
Is the 973-434 made to perform like the original?
Yes. Dorman states it is made to perform like original equipment, and it is backed by Dorman's team of engineers and quality specialists in the USA.
