Standard Motor Products RU312 HVAC Blower Motor Resistor

The Standard Motor Products RU312 is a direct-fit replacement HVAC blower motor resistor engineered to restore proper fan speed control to your vehicle's heating and air conditioning system. The blower motor resistor regulates the electrical current supplied to the blower motor, enabling the fan to operate at multiple speed settings as selected by the climate control switch.

Key Features:

• New, 100% original equipment replacement — no remanufactured components
• Controls electrical current flow from the fan switch to the blower motor for accurate multi-speed operation
• Designed to meet or exceed OEM specifications for reliable, long-lasting performance
• Precision-engineered terminals and resistor coils for consistent electrical contact and heat resistance
• Direct plug-and-play fitment — no modification required
• Manufactured by Standard Motor Products, a trusted OEM and aftermarket supplier with over 100 years in the industry

A failed blower motor resistor commonly results in the HVAC fan operating only at one speed (typically high) or not functioning at all. Replacing the resistor with a quality part like the RU312 restores full fan speed selection and ensures consistent climate control performance.