Dayco Accessory Drive Belt Tensioner Assembly P/N:89707
Silence belt squeal and keep every engine accessory turning with the Dayco Accessory Drive Belt Tensioner Assembly 89616. This automatic tensioner maintains steady tension on the serpentine belt so the accessory drive keeps spinning, and it drops in as a direct-fit replacement for the listed applications — from the 2004-2005 Cadillac CTS to the 2008-2013 Chevrolet Corvette.
Mechanically, the tensioner holds the correct load on the belt to reduce slip and flutter across the accessory pulleys. Signs that this part may need replacing include belt chirp or squeal, belt slip, a rattle or knock from the tensioner, or visible wear — diagnose the cause first, and if a worn tensioner is the source, this assembly replaces it.
Fitment: 2004-2005 Cadillac CTS (V8-5.7L); 2006-2007 Cadillac CTS (V8-6.0L); 2014-2015 Chevrolet Camaro (V8-7.0L); 2011 and 2012-2017 Chevrolet Caprice (V8-6.0L); 2005-2007 Chevrolet Corvette (V8-6.0L); 2008-2013 Chevrolet Corvette (V8-6.2L); 2006-2013 Chevrolet Corvette (V8-7.0L); 2014-2017 Chevrolet SS (V8-6.2L); 2008-2009 Pontiac G8 (V8-6.0L); 2009 Pontiac G8 (V8-6.2L). See the Buyer's Guide tab to confirm your vehicle.
Interchange: Manufacturer part number 89616.
This part cross-references / interchanges with the following part numbers:
What does this tensioner do?
It applies constant tension to the serpentine accessory belt, helping reduce belt slip and flutter so the accessory drive pulleys keep turning.
Is this an automatic tensioner?
It is a direct-fit replacement for applications such as the 2004-2005 Cadillac CTS, the 2014-2015 Chevrolet Camaro, and several Chevrolet Corvette model years. Check the Buyer's Guide tab for the full list.
Which vehicles does the 89616 fit?
It is a direct-fit replacement for applications such as the 2004-2005 Cadillac CTS, 2014-2015 Chevrolet Camaro, and 2005-2013 Chevrolet Corvette. Check the Buyer's Guide tab for the full list.
What are signs this tensioner may need replacing?
Belt chirp or squeal, belt slip, a rattle or knock from the tensioner, or visible wear can point to a worn tensioner. Diagnose the cause before replacing.
What are the pulley specs?
It has a single pulley measuring 70 mm in diameter and 29 mm wide with 6 grooves for serpentine belt use, and rotates counter-clockwise.
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.