Dayco Accessory Drive Belt Tensioner Assembly P/N:89285
Dayco 89684 belt tensioner for the 2012-2015 Scion iQ keeps tension on the accessory drive belt. Some catalogs list this Dayco belt tensioner as a serpentine belt tensioner.
A squealing belt, belt flutter or a wobbling pulley can mean the tensioner is wearing out. Before you replace it, rule out a worn belt or a seized accessory pulley first, since either can make a belt squeal too. The belt drive takes one tensioner.
Dayco 89684 fits the 2012-2015 Scion iQ, including the L4-1.3L engine.
Fit and size
Build and materials
Interchange: B20409
This part cross-references / interchanges with the following part numbers:
Does the Dayco belt tensioner assembly 89684 fit the 2012-2015 Scion iQ?
Yes. Dayco 89684 fits the 2012-2015 Scion iQ, including the L4-1.3L engine.
How big is the pulley on the Dayco tensioner?
The single pulley on Dayco 89684 is 60 mm in diameter and 22 mm wide, with 5 grooves for a serpentine belt.
What direction is the Dayco automatic belt tensioner?
Counter-clockwise. This automatic tensioner has one pulley and works with a serpentine belt.
How do I check whether the tensioner pulley on my belt drive is worn?
With the engine off and cool, look at the pulley for rough, worn grooves or wobble. Squeal or belt flutter while driving can also point to a worn tensioner.
Is B20409 the same as the Dayco 89684 belt tensioner?
Yes. B20409 is listed as an interchange number for Dayco 89684, so both numbers refer to this belt tensioner.
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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.