Standard Motor Products RU386 HVAC Blower Motor Resistor

The Standard Motor Products RU386 is a direct-fit replacement HVAC blower motor resistor engineered to restore proper multi-speed fan operation 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 the selection of multiple fan speeds. A failed resistor commonly results in a blower that only operates on high speed or not at all.

Key Features:

• OEM-matched fit, form, and function — designed as a direct drop-in replacement with no modification required
• Exceeds OEM specifications — engineered for dependable, maintenance-free operation
• Kanthal D resistor wire — provides extended service life, especially on higher-wattage resistors
• Precision-wound resistor coils — deliver accurate resistance values for consistent fan speed control
• Tin-plated steel terminals — ensure maximum electrical contact and secure connector fit
• High-quality ceramic construction with copper electrical connectors for accurate resistance values
• Sample-tested for draw, resistance, and RPM — every unit validated through 48-hour load testing
• Manufactured in IATF 16949-certified facilities — meets rigorous automotive quality standards

Standard Motor Products is a trusted OEM-level supplier with decades of experience in automotive electrical and HVAC components. The RU386 is sold individually and is a reliable, cost-effective solution for restoring full blower motor speed functionality.