Replaces multiple OE numbers: RU-792T, 973-098, 27151ZT00A, 271515Z000, 27151ZM70A, 27151ZQ00A, 27151ZT10A, 7414182Z00. If your vehicle's ventilation system is malfunctioning—such as the fan only blowing at the highest setting or failing to switch speeds—it often signals a failed Blower Motor Resistor.