Help your heater and A/C blower step through its speed settings with this Four Seasons switch: the HVAC Blower Motor Resistor / Switch, part number 20257, which controls the current sent to the blower motor. It is listed for several Buick and Oldsmobile models, among them the 1994-1996 Buick Century and the 1994-1996 Oldsmobile Cutlass Ciera, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
This part is cataloged both as an HVAC blower motor resistor and as a switch, so you may find it under either name.
- Engineered and tested: Four Seasons engineers and tests its products for years of trouble-free operation, drawing on more than 50 years of mobile A/C experience.
- Precision engineered: a precision-engineered design for its listed applications.
- Vehicle-specific: made for specific vehicle applications rather than as a universal part.
- OE-style connectors: the connectors follow the original-equipment style to mate with the vehicle's wiring.
Signs this part may need replacing include a blower that runs only on its highest setting, one or more fan speeds that no longer work, or no airflow on some settings. A blower motor, control switch or wiring fault can cause similar symptoms, so diagnose the cause before replacing the resistor.
Interchange: 11120257 · 973078 · 52463582 · 1713087 · A07689 · DR785
This part cross-references / interchanges with the following part numbers:
20257, 11120257, 973078, 52463582, 1713087, A07689, DR785
Frequently Asked Questions
What does the Four Seasons 20257 do?
It controls the current delivered to the HVAC blower motor so the fan can run at different speed settings. It is listed as both a blower motor resistor and a switch.
Is this the right Century switch for my 1994-1996 Buick Century?
Part 20257 is listed for the 1994-1996 Buick Century. Check the "Vehicles it fits" section to confirm your exact vehicle before ordering.
Does it fit the 1994-1996 Oldsmobile Cutlass Ciera?
Yes, it is listed for the 1994-1996 Oldsmobile Cutlass Ciera. The "Vehicles it fits" section shows every listed application.
What are signs a blower motor resistor may be failing?
Common signs are a blower that works only on high, missing fan speeds, or no airflow on some settings. Other faults can cause the same symptoms, so diagnose the cause first.
What kind of connectors does it use?
It uses OE-style connectors and is built for vehicle-specific applications, as a direct-fit replacement for the listed vehicles.
