{"product_id":"four-seasons-73770-hvac-mode-door-actuator-auxiliary","title":"Four Seasons 73770 HVAC Mode Door Actuator - Auxiliary","description":"\u003ch2\u003eHVAC Mode Door Actuator Overview\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 73770 HVAC mode door actuator is built for direct replacement in the climate control system. It is a gear-driven HVAC air door actuator with a 5-pin terminal layout and 4 mounting ears for secure installation.\u003c\/p\u003e\u003cp\u003eCompatible With 2019-2024 Subaru Ascent auxiliary HVAC applications, this part helps restore proper air door movement when the original actuator is worn or no longer responding correctly. The Four Seasons 73770 is a practical choice for Subaru Ascent owners addressing HVAC airflow control issues.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGear linkage design for controlled HVAC door movement\u003c\/li\u003e\n\u003cli\u003eHVAC air door actuator style for climate control operation\u003c\/li\u003e\n\u003cli\u003e5-terminal pin configuration\u003c\/li\u003e\n\u003cli\u003e4 mounting ears for a stable mounting pattern\u003c\/li\u003e\n\u003cli\u003eFour Seasons part number 73770\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eFour Seasons 73770 is an auxiliary HVAC mode door actuator for 2019-2024 Subaru Ascent models. It is used in the climate control system to move the air door that directs airflow through the cabin vents, helping maintain correct mode selection. If the actuator fails, the system may stop changing airflow direction as commanded, and this replacement restores the mechanical function of the door linkage. This Four Seasons HVAC actuator is identified by part number 73770 and cross-references 72131XC01A for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Issues It Can Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAirflow stuck on one vent setting\u003c\/li\u003e\n\u003cli\u003eMode changes that do not respond to control input\u003c\/li\u003e\n\u003cli\u003eClicking or gear-related noise from the HVAC actuator area\u003c\/li\u003e\n\u003cli\u003eInconsistent cabin airflow direction\u003c\/li\u003e\n\u003cli\u003eLoss of proper auxiliary HVAC door movement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the connector style, mounting ear layout, and auxiliary application before installation. Confirm fitment for 2019-2024 Subaru Ascent models and compare the removed unit to part number 73770 to ensure the replacement matches the original actuator configuration.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons states that its products are engineered and tested for years of trouble-free operation, drawing on more than 50 years of mobile A\/C experience.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":53519208218805,"sku":"BBRN-73770","price":40.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_73770_FRO.jpg?v=1791959811","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-73770-hvac-mode-door-actuator-auxiliary","provider":"PartCatalog","version":"1.0","type":"link"}