Standard Ignition HVAC Blower Motor Resistor P/N:RU-536
$135.99
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Keep control of your heater and A/C fan speeds with the Standard Ignition Blower Motor Resistor RU-536, a front-position HVAC blower motor resistor that governs how fast the blower motor runs at each lower speed setting. It fits many vehicles, among them the 2000-2005 Buick LeSabre, 1998-2005 Cadillac DeVille and 2000-2005 Pontiac Bonneville, and it is a direct-fit replacement for the listed applications.
Copper electrical connectors: Standard uses premium copper connectors for more precise resistance values, which it says improves resistor performance and gives a longer part life.
Made to work with your HVAC system: Standard's research and design process is aimed at seamless integration with the vehicle's HVAC system.
Variable speed control: If a failed resistor is the cause, this unit is designed to bring back variable speed control of the A/C and heater blower motor. That helps HVAC performance and passenger comfort.
Built for GM applications: It is designed specifically for GM vehicles and is put through extensive testing at Standard's facility to confirm correct performance.
This part may need replacing if the blower runs only on high, if one or more fan speeds stop working, or if the blower does not run at all. A blower motor, control switch or wiring fault can cause the same symptoms, so diagnose the cause before you replace any part. See the Buyer's Guide tab for the full fitment list.
Interchange: RU1229 · JA1557 · BR439 · 52480042
This part cross-references / interchanges with the following part numbers:
RU1229, JA1557, BR439, 52480042
Frequently Asked Questions
Is this a direct-fit 2004 Buick LeSabre blower motor resistor?
Yes. The 2000-2005 Buick LeSabre is a listed application, and 2004 is one of those years. See the Buyer's Guide tab for the full fitment list.
Does this 1998-2005 Cadillac DeVille blower motor resistor fit other GM cars?
Yes. Along with the 1998-2005 Cadillac DeVille, it is listed for many other GM vehicles, including the 2000-2005 Pontiac Bonneville. The Buyer's Guide tab shows every application.
What does a blower motor resistor do?
It sets the lower blower speeds by reducing the voltage that reaches the blower motor. This lets the fan run at the speed you select on the heater and A/C controls.
What are signs the blower motor resistor may need replacing?
Warning signs include a blower that works only on high, speeds that no longer work, or a blower that does not run at all. The motor, switch or wiring can cause the same symptoms, so diagnose the problem first.
How is the RU-536 installed?
It is a direct-fit replacement for the listed applications. Follow your vehicle's service information for the resistor's location and removal steps, and disconnect the battery before you begin.
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WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
