Dayco 89442 belt tensioner for the 2004-2011 International 5500i 6-cylinder 10.8L and other vehicles keeps tension on the serpentine drive belt.
A worn serpentine belt tensioner can show up as belt squeal, a fluttering belt or a pulley with side play. Before you replace the Dayco belt tensioner assembly, rule out a worn belt and a failing alternator or fan bearing, since a noisy belt drive has more than one possible source.
Among the vehicles it fits are the 2004-2011 International 5600i 6-cylinder 10.8L and the 2005-2011 Kenworth T800 6-cylinder 10.8L. If your vehicle is not named here, run its year and engine through the "Vehicles it fits" section before you order.
Fit and size
Build and materials
One belt tensioner per listing; the engine needs a single one.
Interchange: 38505 · 49515 · 45827 · 680093 · 910002A · 910002
This part cross-references / interchanges with the following part numbers:
Does the Dayco 89442 belt tensioner fit a 2004-2011 International 5600i 6-cylinder 10.8L?
Yes. Dayco 89442 fits the 2004-2011 International 5600i 6-cylinder 10.8L and the 2005-2011 Kenworth T800 6-cylinder 10.8L. For another year or engine, use the "Vehicles it fits" section.
Is this Dayco automatic belt tensioner made for a serpentine belt?
Yes. Dayco 89442 is an automatic type for a serpentine belt, with one flat pulley.
What size pulley is on the Dayco tensioner?
This tensioner has one flat pulley that is 74 mm in diameter and 39.25 mm wide.
What can a squealing or fluttering belt mean for a belt tensioner like this?
Squeal, flutter or uneven belt wear can mean a worn tensioner, among other causes. With the engine off and cool, look for a wobbling pulley or a cracked belt; a shop can test the rest.
Does Dayco 89442 replace tensioner number 910002A?
Yes. 910002A is one of the numbers Dayco 89442 replaces, and the Interchange line lists the others.
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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.
