Help keep your HVAC fan speeds under control with the Dorman blower motor resistor and harness pigtail kit, part number 973-574, a direct-fit replacement for the 2009-2017 Toyota Corolla, 2009-2017 Toyota RAV4 and 2009-2014 Toyota Matrix. It is built to take the place of an original equipment resistor that has overheated or corroded. See the "Vehicles it fits" section for engine details.
The blower motor resistor sets the blower's fan speeds by reducing the current that reaches the blower motor at the lower settings. When the resistor fails, the fan may stop responding to some or all speed settings. This Dorman HVAC blower motor resistor kit pairs a new resistor with a fresh harness pigtail, so the connector can be replaced in the same repair.
- Resistor plus harness pigtail: Each kit comes with a resistor and a harness pigtail, which Dorman calls essential for most repairs.
- Direct replacement: Designed to install in place of the original equipment on the listed Toyota applications.
- OE-like performance: Made to perform like the original equipment. If a failed resistor is the cause of your HVAC blower problem, this kit replaces it.
- Engineering support: Backed by Dorman's team of engineers and quality specialists in the USA.
Signs this part may need replacing: the blower works on some speeds but not others, runs only on the highest setting, or does not run at all. A blower motor, switch or wiring fault can cause similar symptoms, so diagnose the cause before replacing parts.
Interchange: 4P1694 · RU1434 · 20460 · RU745 · 8713802110 · JA1816
This part cross-references / interchanges with the following part numbers:
4P1694, RU1434, 20460, RU745, 8713802110, JA1816
Frequently Asked Questions
What comes with the Dorman blower motor resistor kit?
Each kit includes a resistor and a harness pigtail. Dorman notes the pigtail is essential for most repairs.
Which vehicles does part 973-574 fit?
It is a direct-fit replacement for the 2009-2017 Toyota Corolla, 2009-2017 Toyota RAV4 and 2009-2014 Toyota Matrix. See the "Vehicles it fits" section for engine details.
What does a blower motor resistor do?
It sets the HVAC blower's fan speeds by reducing the current that reaches the blower motor at the lower settings, so the fan can run at different speeds.
What are signs the blower motor resistor may need replacing?
Common signs are a blower that works on some speeds but not others, runs only on the highest setting, or does not run at all. A motor, switch or wiring fault can cause similar symptoms, so diagnose first.
Is this a direct replacement for the original resistor?
Yes. Dorman states it directly replaces the original equipment on the listed applications and is made to perform like the original part.
