Four Seasons HVAC Defrost Mode Door Actuator,HVAC Mode Door Actuator P/N:73598

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$169.99
MPN: 73598
Item Package Quantity: 1
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Four Seasons HVAC Defrost Mode Door Actuator,HVAC Mode Door Actuator P/N:73598
Four Seasons HVAC Defrost Mode Door Actuator,HVAC Mode Door Actuator P/N:73598
$169.99

Route cabin air to the right outlets and clear a fogged windshield with the Four Seasons HVAC Defrost Mode Door Actuator / HVAC Mode Door Actuator (MPN 73598). This small electric actuator drives the HVAC mode/defrost door, positioning it to send air toward the defrost, panel, and floor outlets on command from the climate controls. It drops in as a direct-fit replacement for the 2016-2020 Toyota Mirai and the 2016 Toyota RAV4 — see the Buyer's Guide tab for full engine-level fitment. Listed under both the defrost mode door and mode door actuator names.

  • Complete drive assembly: includes the lever arm, gear, cam gear hardware, and linkage as applicable.
  • Quality internals: built with an internal motor, drive gears, electronics, and connections.
  • Built to OE-level standards: engineered to match the original part's fit and function on the listed applications.
  • Function-tested: checked for function, durability, and longevity, backed by over 50 years of Four Seasons mobile A/C experience.

If a failed mode/defrost actuator is the cause, signs it may need replacing include a clicking or knocking behind the dash, air that will not switch between defrost, vents, and floor, or airflow stuck on one outlet. Diagnose the cause before replacing.

Interchange: ACT1923IM · BDAD1384 · DA9024 · A60598 · 8710642190

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

ACT1923IM, 73598, BDAD1384, DA9024, A60598, 8710642190

Frequently Asked Questions

What does this actuator do?

It is a small electric motor that positions the HVAC mode/defrost door, directing airflow toward the defrost, panel vents, or floor outlets based on your climate control settings.

What vehicles does MPN 73598 fit?

It is a direct-fit replacement for the 2016-2020 Toyota Mirai and the 2016 Toyota RAV4. Check the Buyer's Guide tab to confirm the fit for your vehicle.

What are the signs of a failing mode door actuator?

Common signs include a clicking or knocking noise behind the dash, air that won't switch between defrost, vents, and floor, or airflow stuck on one outlet. Diagnose the cause before replacing.

What comes with the actuator?

It includes the lever arm, gear, cam gear hardware, and linkage as applicable, along with the internal motor, drive gears, electronics, and connections.

Is this the same as the mode door actuator?

Yes. This part is listed under both the HVAC Defrost Mode Door Actuator and HVAC Mode Door Actuator names; it is the same component.