Dayco 89370 belt tensioner for the 2005-2008 Ford Escape V6 3.0L and other vehicles keeps tension on the engine's serpentine belt. This Dayco accessory drive belt tensioner assembly sits in the main drive and takes up slack in the belt.
A squealing or chirping belt, a belt that flutters, or visible wear on the tensioner pulley can mean the tensioner is worn, though a worn belt or a failing idler pulley can make the same noise, so find the source before you replace anything.
The 2005-2008 Ford Escape V6 3.0L, the 2006-2009 Ford Fusion V6 3.0L and the 2009-2010 Jaguar XF take this belt tensioner, and so do many other Ford, Lincoln, Mercury, Jaguar, Land Rover and Mazda models. Driving something else? Run your year and engine through the Buyer's Guide tab.
Fit and size
Build and materials
One belt tensioner. This listing holds one, and each vehicle takes one.
Interchange: BT-81
780222 · 38279 · 49344 · 5713 · 999707A
This part cross-references / interchanges with the following part numbers:
Will a 2006-2009 Ford Fusion V6 3.0L take this belt tensioner?
Yes. Dayco 89370 fits the 2006-2009 Ford Fusion V6 3.0L, and the car takes one.
Is this the right belt tensioner for a 2005-2008 Ford Escape V6 3.0L?
Yes. Dayco 89370 fits the 2005-2008 Ford Escape V6 3.0L. For other vehicles, check your year and engine on the Buyer's Guide tab.
Is this serpentine belt tensioner automatic or manual?
It is an automatic tensioner for a serpentine belt, with a clockwise direction and a single flat pulley.
What size is the pulley on this Dayco drive belt tensioner?
The pulley on Dayco 89370 is 76 mm in diameter and 30.9 mm wide, with a flat face.
Is BT-81 a cross-reference for Dayco 89370?
Yes. BT-81 is one of the interchange numbers listed for Dayco 89370; the full set is on the Interchange line of the description.
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.
