Set how hard your heater and A/C fan blows with the Four Seasons blower motor resistor / control module, part number 20720. It regulates the current sent to the blower motor for each fan speed setting. It fits many vehicles, among them the 2004-2008 Chrysler Crossfire, 1998-2004 Chrysler SLK230 and 2002-2004 Chrysler SLK32 AMG, as a direct-fit replacement for the listed applications.
Four Seasons catalogs this part as an HVAC Blower Motor Control Module, so you may find it under either name. It is engineered and tested by a brand backed by more than 50 years of mobile A/C experience.
- Vehicle-specific: built for the listed Chrysler and Mercedes-Benz applications.
- Precision engineered: designed and tested by Four Seasons.
- Quality contacts: designed to maintain proper conductivity.
- OE-style connectors: for the electrical connection.
Signs a blower motor resistor may need replacing include a fan that runs on only some speeds, or not at all. If a failed resistor is the cause, this unit replaces it. Check the switch, wiring and motor as well, since they can cause similar symptoms. See the "Vehicles it fits" section for the full list of Chrysler and Mercedes-Benz models it fits.
Interchange: 4P1774 · 5096842AA · 5096900AA · 5096900AB · 5096900AC · 5096900AD · 973100 · 1712044 · 2108206210 · 2108207310 · 2108700210 · 210870021028 · 210870021039 · A07620 · MT1832 · SW9965C · URO001841 · JA1483
This part cross-references / interchanges with the following part numbers:
4P1774, 5096842AA, 5096900AA, 5096900AB, 5096900AC, 5096900AD, 20720, 973100, 1712044, 2108206210, 2108207310, 2108700210, 210870021028, 210870021039, A07620, MT1832, SW9965C, URO001841, JA1483
Frequently Asked Questions
What does an HVAC blower motor resistor do?
It sets the blower fan speed by regulating the current sent to the blower motor for each switch position. Four Seasons also lists this part as a blower motor control module.
Is this the right 2004-2008 Chrysler Crossfire blower motor resistor?
It is a direct-fit replacement for the 2004-2008 Chrysler Crossfire. Check the "Vehicles it fits" section to confirm your exact vehicle.
What other vehicles does it fit?
It fits many Chrysler and Mercedes-Benz models, including the 1998-2004 Chrysler SLK230 and 2002-2004 Chrysler SLK32 AMG. See the "Vehicles it fits" section for the full list.
What are the signs a blower motor resistor may need replacing?
Common signs include a blower that works on only some speeds, or not at all. A switch, wiring or motor fault can cause similar symptoms, so diagnose the cause before replacing.
What connectors and contacts does it use?
It uses OE-style connectors. Four Seasons fits it with quality contacts designed to maintain proper conductivity.
