Designed to control how fast your heater and A/C fan spins, this Four Seasons switch, part number 20128, is an HVAC Blower Motor Resistor / Switch. It regulates the current sent to the blower motor to set its fan speeds. It fits many vehicles, among them the 1995-2006 Nissan Sentra, 1998-2004 Nissan Frontier and 2000-2004 Nissan Xterra, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
This part is listed under two names, HVAC Blower Motor Resistor and Switch, so you may find it under either one.
- OE-style connectors: Connectors styled after the original equipment.
- Quality contacts: Designed for proper electrical conductivity.
- Precision engineered: Engineered with precision by Four Seasons.
- Vehicle-specific: Built for the specific applications it is cataloged for.
Four Seasons engineers and tests its products with the goal of years of trouble-free operation. The company draws on more than 50 years of mobile A/C experience.
Signs this part may need replacing: The blower runs only on its highest setting, one or more fan speeds do not work, or the blower does not run at all. The HVAC control, wiring or the blower motor itself can cause the same symptoms, so diagnose the circuit before replacing the resistor / switch.
