Four Seasons HVAC Blower Motor Resistor 20318
Four Seasons HVAC Blower Motor Resistor 20318 - view 2
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Four Seasons HVAC Blower Motor Resistor 20318
Four Seasons HVAC Blower Motor Resistor 20318 - view 2
Four Seasons HVAC Blower Motor Resistor 20318 - view 3
Four Seasons HVAC Blower Motor Resistor 20318 - view 4
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Blower Motor Resistor for 1994-1997 Ford Thunderbird & More - Four Seasons 20318

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$56.99
MPN: 20318
Item Package Quantity: 1
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Four Seasons HVAC Blower Motor Resistor P/N:20318
Four Seasons HVAC Blower Motor Resistor P/N:20318
$56.99

Help your heater and A/C fan step through its speed settings with the Four Seasons HVAC Blower Motor Resistor / Switch 20318, a direct-fit replacement for the 1994-1997 Ford Thunderbird, 1994-1995 Ford Cougar and 1994-1997 Mercury Cougar. In the blower circuit, the resistor lowers the voltage that reaches the blower motor, which lets the fan run at its lower speed settings. This Four Seasons switch is cataloged under both names, HVAC blower motor resistor and switch. See the Buyer's Guide tab for full application details.

  • Vehicle-specific design: Built for specific applications, including the listed Ford and Mercury models.
  • Quality contacts: Designed to provide proper electrical conductivity through the blower circuit.
  • OE-style connectors: Uses OE-style connectors for hookup to the vehicle's wiring.
  • Engineered and tested: Four Seasons engineers and tests its products and draws on more than 50 years of mobile A/C experience.

A blower that runs only on its highest setting, or skips one or more lower speeds, may be a sign the resistor needs replacing. A faulty switch, damaged wiring or a worn blower motor can cause similar symptoms, so diagnose the circuit before you replace parts. If a failed resistor is the cause, the 20318 replaces it.

Interchange: 11120318 · F4SZ19A706A · A08188 · JA1531

This part cross-references / interchanges with the following part numbers:

20318, 11120318, F4SZ19A706A, A08188, JA1531

Frequently Asked Questions

What does an HVAC blower motor resistor / switch do?

It sits in the blower circuit and reduces the voltage that reaches the blower motor, so the fan can run at its lower speed settings.

Does this Thunderbird switch also fit the Cougar?

It is listed for the 1994-1997 Ford Thunderbird, 1994-1995 Ford Cougar and 1994-1997 Mercury Cougar. The Buyer's Guide tab shows the full application details.

What are signs the blower motor resistor may need replacing?

A blower that works only on high or skips lower speeds can be a sign of a failed resistor. A switch, wiring or motor fault can cause similar symptoms, so diagnose the circuit first.

What features does the Four Seasons 20318 offer?

It has a vehicle-specific design, quality contacts for proper conductivity and OE-style connectors, backed by Four Seasons' more than 50 years of mobile A/C experience.

Which part numbers does the 20318 interchange with?

It cross-references 11120318, F4SZ19A706A, A08188 and JA1531.

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