Four Seasons HVAC Recirculation Door P/N:73492
Switch cleanly between fresh outside air and recirculated cabin air with the Four Seasons HVAC Recirculation Door, MPN 73442. It installs as a direct-fit replacement for the 2005-2009 Buick LaCrosse, 2004-2008 Pontiac Grand Prix, 2004-2011 Chevrolet Impala, and the 2004-2007 Buick and Chevrolet Monte Carlo — see the Buyer's Guide tab for the full application list.
This recirculation door is the movable flap inside the HVAC case that positions the airflow path so the blower pulls either outside air or air already inside the cabin. When the original binds, cracks, or stops moving, the system can get stuck on one air source and stop responding to the recirculation control. It is built to match the fit and function of the original door on the listed applications.
Interchange: 902400 · BDDC1001 · 10321155 · 89018291 · 89018505 · DA1386 · A60442 · MT18920
This part cross-references / interchanges with the following part numbers:
What does the Four Seasons 73442 recirculation door do?
It is the movable flap inside the HVAC case that positions the airflow path so the blower draws either fresh outside air or recirculated cabin air.
What is an HVAC recirculation door?
It is the door that switches your climate system between pulling in outside air and recirculating the air already in the cabin, controlling which source the blower feeds from.
What is included with this part?
It includes the lever arm, gear, cam gear hardware and linkage as applicable.
Which vehicles does MPN 73442 fit?
It is a direct-fit replacement for applications including the 2005-2009 Buick LaCrosse, 2004-2008 Pontiac Grand Prix, 2004-2011 Chevrolet Impala, and 2004-2007 Monte Carlo. See the Buyer's Guide tab for the full list.
What are signs this door may need replacing?
The air source may not change when you toggle recirculation, or you may hear noise from the HVAC case. Diagnose the cause before replacing, since actuators or controls can produce similar symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.