{"product_id":"four-seasons-73643-hvac-mode-valve-actuator-gear","title":"Four Seasons 73643 HVAC Mode Valve Actuator Gear","description":"\u003ch2\u003eReliable HVAC Mode Valve Actuator Gear for Select GM Vehicles\u003c\/h2\u003e\u003cp\u003eThe Four Seasons HVAC Actuator Gear 73643 is designed to restore proper HVAC system function in various Buick, Cadillac, and Chevrolet models. This gear-type door linkage actuator ensures precise control of airflow direction within the vehicle’s climate control system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDoor linkage style: Gear for accurate HVAC mode control\u003c\/li\u003e\n\u003cli\u003eCompatible with Buick, Cadillac, and Chevrolet models including Cruze, LaCrosse, Malibu, Regal, and Volt\u003c\/li\u003e\n\u003cli\u003ePart number 73643 for easy identification and replacement\u003c\/li\u003e\n\u003cli\u003ePart of the Four Seasons HVAC Actuator Gear product line, engineered for durability and fitment accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Four Seasons HVAC Actuator Gear Product Line\u003c\/h2\u003e\u003cp\u003eThe HVAC Actuator Gear line by Four Seasons focuses on replacement components that regulate airflow direction within vehicle heating and cooling systems. These actuator gears are designed to interface with door linkages, providing reliable movement of HVAC mode valves. The 73643 actuator gear is part of this line, offering a gear-style linkage that matches original equipment specifications for select GM vehicles.\u003c\/p\u003e\u003ch2\u003eProduct Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThis HVAC mode valve actuator gear features a gear-style door linkage that controls the position of the HVAC mode valve, directing airflow to the desired vents. It is compatible with a range of Buick, Cadillac, and Chevrolet models, including the Cruze, Cruze Limited, ELR, LaCrosse, Malibu, Malibu Limited, Regal, Verano, and Volt. Using part number 73643 ensures proper fit and function within these vehicles’ temperature control systems.\u003c\/p\u003e\u003ch2\u003eCommon HVAC Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInconsistent airflow direction from vents\u003c\/li\u003e\n\u003cli\u003eFailure to switch between heating and cooling modes\u003c\/li\u003e\n\u003cli\u003eUnresponsive or stuck HVAC mode valve\u003c\/li\u003e\n\u003cli\u003eUnusual noises from the HVAC system during mode changes\u003c\/li\u003e\n\u003cli\u003eIntermittent climate control operation in Buick, Cadillac, or Chevrolet models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen replacing the HVAC mode valve actuator gear 73643, ensure the vehicle’s HVAC system is powered off to prevent electrical issues. Carefully remove the old actuator gear and inspect the door linkage for wear or damage. Align the new gear properly with the mode valve shaft to avoid binding or improper operation. Refer to the vehicle’s service manual for specific removal and installation procedures related to the HVAC system.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eFour Seasons manufactures the HVAC Actuator Gear 73643 to meet or exceed OEM standards for fit, form, and function. This part undergoes quality checks to ensure reliable performance in Buick, Cadillac, and Chevrolet vehicles. Warranty coverage details should be confirmed with the product supplier or manufacturer documentation.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52253038117045,"sku":"BBRN-73643","price":18.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_73643_Fro.jpg?v=1775699649","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-73643-hvac-mode-valve-actuator-gear","provider":"PartCatalog","version":"1.0","type":"link"}