604-106, 89018365, 52402588 HVAC Blend Door Actuator Replacement for Chevrolet, Chevy, GMC,Silverado Features: 89018365, 604-106, 52402588, 16163982, 52402598, 52402612. Direct replacement for the factory blend door actuator on your vehicle.Don't forget to recalibrate you HVAC system after installation Replacement for Chevy, GMC, Cadillac, Buick, and Pontiac models,for Chevy Silverado 1500 2500 HD & GMC Sierra 1500 2500 HD 1999-2013, Chevy Tahoe, Suburban 1500 2500, GMC Yukon/Yukon XL, Cadillac Escalade 2000-2014, Century, Pontiac Grand Prix, Bravada, Hummer H2 2003-2009 & More popular models,More detail, please check below . Quick and simple installation for a proper fitment on driver and passenger side. Don’t forget to recalibrate you HVAC system after installation. Through the performance test and noise test, to ensure stable operation and no clogging noise and other abnormalities of the motor. The blend door actuator also features a more rugged internal circuit board which resists heat, corrosion, and vibration. Specification: Replaces part : 89018365, 604-106, 52402588, 16163982, 52402598, 52402612 FITS THE FOLLOWING VEHICLES： Chevy Corvette 1997-2004 Chevy Blazer 1998-2002 Chevy S10 1998-2002 Chevy Silverado 1500 | 1500 HD | 2500 | 2500 HD 1999-2013 Chevy Silverado 3500 2001-2006 Chevy Silverado 3500 HD 2007-2014 Chevy Silverado 1500 HD | 2500 HD | 3500 Classic 2007 Chevy Tahoe 2000-2014 Chevy Suburban 1500 | 2500 2000-2014 Chevy Trailblazer & EXT model 2002-2003 GMC Jimmy 1998-2001 GMC Sonoma 1998-2002 GMC Sierra 1500 | 1500 HD | 2500 | 2500 HD 1999-2013 GMC Sierra 3500 2001-2006 GMC Sierra 3500 HD 2007-2014 GMC Sierra 1500 HD | 2500 HD | 3500 Classic 2007 GMC Yukon 2000-2014 GMC Yukon XL 2000-2014 GMC Envoy & XL model 2002-2003 Cadillac Fleetwood 1994-1996 Cadillac Seville 1998-2004 Cadillac Escalade 2000-2014 Cadillac Escalade ESV & EXT 2003-2014 Package Included: 1xBlend Door Actuator