An automatic belt tensioner keeps the serpentine belt at the right tension as it stretches and as accessory loads change. A weak tensioner lets the belt slip and chirp. This Gates DriveAlign tensioner is built to replace the original unit.

Gates 39431 DriveAlign Belt Tensioner Features:

• Maintains Correct Serpentine Belt Tension
• Designed to Match OE Fit and Function
• Steel Pulley
• Improved Design
• Sold Individually

Vehicle Applications:

• 2009-2014 Cadillac Escalade 6.0L V8, 6.2L V8
• 2009-2014 Cadillac Escalade ESV 6.2L V8
• 2009-2013 Cadillac Escalade EXT 6.2L V8
• 2009-2013 Chevrolet Avalanche 5.3L V8, 6.0L V8
• 2009-2012 Chevrolet Colorado 5.3L V8
• 2009-2014 Chevrolet Express 1500 5.3L V8
• 2009-2020 Chevrolet Express 2500 4.8L V8, 6.0L V8
• 2009-2020 Chevrolet Express 3500 4.8L V8, 6.0L V8
• 2010-2020 Chevrolet Express 4500 6.0L V8
• 2009-2020 Chevrolet Express Cargo 4.8L V8, 5.3L V8, 6.0L V8
• 2009-2020 Chevrolet Express Pasajeros 5.3L V8, 6.0L V8
• 2016-2017 Chevrolet LCF 3500 6.0L V8
• 2020 Chevrolet LCF 3500 6.0L V8
• 2016-2020 Chevrolet LCF 4500 6.0L V8
• 2009-2013 Chevrolet Silverado 1500 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8
• 2009-2013 Chevrolet Silverado 2500 4.8L V8, 5.3L V8
• 2009-2019 Chevrolet Silverado 2500 HD 6.0L V8
• 2009-2013 Chevrolet Silverado 3500 6.0L V8
• 2015-2018 Chevrolet Silverado 3500 6.0L V8
• 2009-2019 Chevrolet Silverado 3500 HD 6.0L V8
• 2014 Chevrolet Suburban 5.3L V8
• 2016-2019 Chevrolet Suburban 5.3L V8, 6.0L V8
• 2009-2014 Chevrolet Suburban 1500 5.3L V8, 6.0L V8
• 2009-2013 Chevrolet Suburban 2500 5.3L V8, 6.0L V8
• 2016-2019 Chevrolet Suburban 3500 HD 6.0L V8
• 2009-2014 Chevrolet Tahoe 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8
• 2008-2009 Chevrolet W3500 Tiltmaster 6.0L V8
• 2009 Chevrolet W4500 Tiltmaster 6.0L V8
• 2013-2017 Freightliner MT45 6.0L V8
• 2011-2014 Freightliner MT55 6.0L V8
• 2009-2012 GMC Canyon 5.3L V8
• 2009-2014 GMC Savana 1500 5.3L V8
• 2009-2020 GMC Savana 2500 4.8L V8, 6.0L V8
• 2009-2020 GMC Savana 3500 4.8L V8, 6.0L V8
• 2011-2017 GMC Savana 4500 6.0L V8
• 2009-2013 GMC Sierra 5.3L V8, 6.2L V8
• 2009-2013 GMC Sierra 1500 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8
• 2009-2019 GMC Sierra 2500 HD 6.0L V8
• 2009-2019 GMC Sierra 3500 HD 6.0L V8
• 2008 GMC W3500 Forward 6.0L V8
• 2008-2009 GMC W4500 Forward 6.0L V8
• 2009-2014 GMC Yukon 4.8L V8, 5.3L V8, 6.0L V8, 6.2L V8
• 2009-2014 GMC Yukon XL 1500 5.3L V8, 6.0L V8, 6.2L V8
• 2009-2013 GMC Yukon XL 2500 6.0L V8
• 2009 Hummer H2 6.2L V8
• 2009-2010 Hummer H3 5.3L V8
• 2009-2010 Hummer H3T 5.3L V8
• 2008-2009 Isuzu NPR 6.0L V8
• 2012-2020 Isuzu NPR 6.0L V8
• 2008-2009 Isuzu NPR-HD 6.0L V8
• 2012-2020 Isuzu NPR-HD 6.0L V8
• 2009-2010 Workhorse W42 4.8L V8
• 2011 Workhorse W62 6.0L V8
• 2010 Workhorse Custom Chassis W42 4.8L V8
• 2011-2012 Workhorse Custom Chassis W62 6.0L V8