Help keep cabin airflow at the fan speed you choose with the Four Seasons switch 20438, an HVAC Blower Motor Resistor / Control Module designed to regulate the current sent to your blower motor. It fits many vehicles, among them the 2006-2012 Ford Fusion, 2007-2012 Lincoln MKZ and 2006-2011 Mercury Milan, and serves as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list.
Four Seasons lists this part as both an HVAC blower motor resistor and an HVAC blower motor control module. Within the blower circuit, it sets how much current reaches the fan at each speed setting. If a failed unit is why your fan runs on only some speeds or won't change speed, this Milan switch replaces it.
- Vehicle-specific design: Built for the listed applications.
- OE-style connectors: Connectors styled after the original equipment design.
- Quality contacts: Designed for proper electrical conductivity.
- Tested: Engineered and tested by Four Seasons, backed by over 50 years of mobile A/C experience.
Signs this part may need replacing: The blower works on only some speed settings, the fan speed does not change when you adjust it, or the blower does not run at all. Because wiring, the HVAC controls or the blower motor can cause similar symptoms, diagnose the cause before you replace the part.
Interchange: 973057 · 6E5Z19E624AA · 8E5Z19E624A · 1712773 · YH1825 · A06788 · MT18709 · SW11339 · SW11339C · JA1712
This part cross-references / interchanges with the following part numbers:
20438, 973057, 6E5Z19E624AA, 8E5Z19E624A, 1712773, YH1825, A06788, MT18709, SW11339, SW11339C, JA1712
