Each blower motor resistor is a direct-fit replacement electrically operated resistor that replaces damaged OE units restoring a/c and heater blower motor variable speed control. All blower motor resistors are made from high quality ceramics with copper electrical connectors to ensure accurate and precise resistance values for long life and high performance. Robust design and high grade materials meet the stringent demands of today's service professional. All of our switches are made to OE spec to ensure proper fit, form and function.