Bring back stepped fan control for your heater and A/C with the Standard Ignition HVAC Blower Motor Resistor RU-456 (also written RU456). This front-mounted resistor sets the blower motor's variable speed settings, and it drops in as a direct-fit replacement for the 1997-2001 Lexus ES300, 2000-2001 Lexus GS300, 1997-2002 Toyota 4Runner, 1998-1999 Toyota Avalon, 2001-2007 Toyota Sequoia, 2000-2002 Toyota Sienna, and 1999-2003 Toyota Solara — see the Buyer's Guide tab for engine-level details.
- Premium copper connectors: use copper electrical connectors for more precise resistance values, which helps resistor performance and supports a longer part life.
- HVAC-matched design: the research and design process is intended for seamless integration with the vehicle's HVAC system.
- Speed control: if a failed resistor is the reason your blower only runs on certain speeds, this part restores the A/C and heater blower motor's variable speed control to help optimize HVAC operation and passenger comfort.
- Application-specific: specifically designed for Lexus and Toyota applications and tested at the facility to confirm correct performance across conditions.
Interchange: RU1149 · JA1681 · BR359 · 8716532010 · 8716533010
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this blower motor resistor do?
It sets the blower motor's variable fan speeds for the heater and A/C. If a failed resistor is limiting your blower to only certain speeds, replacing it (RU-456) restores that speed control.
Where is this resistor mounted?
This is a front-mounted HVAC blower motor resistor. Consult your vehicle service information for its exact location and access.
Which vehicles does the RU-456 fit?
It's a direct-fit for the 1997-2001 Lexus ES300, 2000-2001 GS300, 1997-2002 Toyota 4Runner, 1998-1999 Avalon, 2001-2007 Sequoia, 2000-2002 Sienna, and 1999-2003 Solara. See the Buyer's Guide tab.
What are signs this resistor may need replacing?
The blower may work on only one or a few speeds, or not on the lower settings. Diagnose the cause first, since wiring, the switch, or the motor can also produce these symptoms.
What numbers does this part interchange with?
It cross-references RU1149, JA1681, BR359, 8716532010, and 8716533010.
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