Take charge of your cabin airflow with the Standard Ignition A/C and Heater Blower Motor Switch HS-204, the front control switch you use to select the blower motor's fan speed for both heating and air conditioning. It fits many vehicles, among them the 1978-1983 Chevrolet Impala, 1978-1983 Chevrolet Malibu and 1985-1994 Chevrolet P30, as a direct-fit replacement for the listed applications.
- Copper alloy conductors: chosen for strong electrical conductivity with low resistive losses.
- 100% tested: every switch is checked to verify both its mechanical and electrical switching performance.
- Robust design: built with high-grade materials to meet the stringent demands of today's service professionals.
- Quality control throughout: as a global maker of original equipment ignition products, Standard Ignition controls the manufacturing process from componentry to finished product, backed by decades of research and development focused on the technician's needs.
Signs this switch may need replacing include a blower that runs on some settings but not others, a fan that won't come on at all, or controls that work only intermittently. A blower motor, resistor or wiring fault can produce similar symptoms, so diagnose the circuit before replacing the switch. For engine details and the full vehicle list, see the "Vehicles it fits" section.
Interchange: BL6 · SW195 · HC100 · 16015256 · 7895384 · HC100SB
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
BL6, SW195, HC100, 16015256, 7895384, HC100SB
Frequently Asked Questions
What does the Standard Ignition HS-204 switch do?
It is the front A/C and heater blower motor switch. It is the control you use to select the blower fan speed for heating and air conditioning.
Is this the right Impala switch for the blower on my 1978-1983 Chevrolet Impala?
Yes. HS-204 is listed as a direct-fit A/C and heater blower motor switch for the 1978-1983 Chevrolet Impala. Check the "Vehicles it fits" section to match your exact model and year.
What other vehicles does the HS-204 fit?
It also fits the 1978-1983 Chevrolet Malibu and the 1985-1994 Chevrolet P30, among many other vehicles. See the "Vehicles it fits" section for the full list.
How is this blower motor switch built and tested?
It uses copper alloy conductors for electrical conductivity with low resistive losses. Standard Ignition tests 100% of these parts to verify both mechanical and electrical switching performance.
What are signs a blower motor switch may need replacing?
Signs include a blower that works on only some settings, won't run at all, or cuts in and out. A motor, resistor or wiring fault can cause the same symptoms, so diagnose the circuit first.
