Designed to regulate the rear blower's fan speeds, the Four Seasons HVAC Blower Motor Resistor / Switch 20490 is a direct-fit replacement for the rear blower circuit on the 2007-2015 Ford Expedition and 2007-2017 Lincoln Navigator.
This part controls how much current reaches the rear HVAC blower motor, which sets each selectable fan speed. It is listed under both names, blower motor resistor and switch. Four Seasons says its products are engineered and tested for years of trouble-free operation, and it draws on more than 50 years of mobile A/C experience.
- Vehicle-specific application: built for the listed Expedition and Navigator applications.
- Quality contacts: designed to provide proper electrical conductivity.
- Precision engineered: built to precise tolerances for its application.
- OE-style connectors: for connection to the vehicle's wiring harness.
Signs this part may need replacing include a rear blower that runs on only some speeds, runs only on high, or does not run at all. The blower motor, wiring or controls can cause the same symptoms, so diagnose the rear blower circuit before replacing parts. If a failed resistor is the cause, this Four Seasons switch replaces it.
Interchange: 973558 · 7L1Z19A706A · 1712772 · YH33 · A06840 · MT18710 · SW11456C · JA1714
This part cross-references / interchanges with the following part numbers:
20490, 973558, 7L1Z19A706A, 1712772, YH33, A06840, MT18710, SW11456C, JA1714
