Standard Motor Products RU442 HVAC Blower Motor Resistor

The Standard Motor Products RU442 HVAC Blower Motor Resistor is a direct-fit replacement component that restores proper fan speed control to your vehicle's heating and air conditioning system. The blower motor resistor regulates the electrical current flowing from the fan switch to the blower motor, enabling multiple fan speed settings. A failed resistor commonly results in a blower that operates only on high speed — or not at all — making this a critical component for interior climate comfort.

Key Features:

• Direct OE replacement — no remanufactured components
• Precision-built resistor coils for accurate fan speed control
• Tin-plated steel terminals for maximum electrical contact and secure fit
• High-quality ceramic construction with copper electrical connectors for accurate resistance values
• Kanthal D resistor wire for extended service life on higher-watt applications
• Engineered to meet or exceed OEM specifications for fit, form, and function
• Sample-tested for draw, resistance, and RPM — validated against OE specs
• Manufactured in IATF 16949-certified facilities

Standard Motor Products engineers conduct rigorous 48-hour load tests at all fan speeds to ensure the RU442 will perform reliably under all operating conditions. This is a brand-new part with no remanufactured components, backed by Standard Motor Products' reputation as a leading independent supplier to the automotive aftermarket.