Dayco Accessory Drive Belt Tensioner Assembly 89266
Dayco Accessory Drive Belt Tensioner Assembly 89266 - view 2
Dayco Accessory Drive Belt Tensioner Assembly 89266
Dayco Accessory Drive Belt Tensioner Assembly 89266 - view 2

Dayco Accessory Drive Belt Tensioner Assembly P/N:89266

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$78.99
MPN: 89266
Item Package Quantity: 1
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Dayco Accessory Drive Belt Tensioner Assembly P/N:89266
Dayco Accessory Drive Belt Tensioner Assembly P/N:89266
$78.99

Keep the accessory drive belt properly tensioned and every belt-driven engine accessory turning with the Dayco Accessory Drive Belt Tensioner Assembly 89266. Cataloged for the main drive position, it drops in as a direct-fit replacement for the listed applications: 2006-2011 Buick Lucerne, 1993 Cadillac Allante, 1994-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 1993-2002 Cadillac Eldorado, 1993-2004 Cadillac Seville, 1995-1999 and 2001-2003 Oldsmobile Aurora, and 2004-2005 Pontiac Bonneville.

  • Main drive position: cataloged for the engine's main accessory belt drive.
  • Automatic tensioning: a spring-loaded arm applies constant tension to take up slack and help control belt flutter.
  • Integrated pulley: the pulley rides against the accessory drive belt to guide and tension it.
  • Complete assembly: supplied as a ready-to-install tensioner assembly for a straightforward swap of a worn unit.

Signs the original tensioner may need replacing include belt squeal or chirp, a bouncing or vibrating tensioner arm, and rapid or uneven belt wear. If a worn tensioner is the cause of those symptoms, this assembly replaces it; diagnose the cause before replacing.

Interchange: 38153 · 49006 · 49240 · 419-117 · 419117 · 45847 · 5847 · 900022A · 999156A · 6601890 · Manufacturer part number 89266.

This part cross-references / interchanges with the following part numbers:

38153, 49006, 49240, 419-117, 45847, 5847, 900022A, 999156A, 6601890, 12557838, 12562347, 3531801, 3540047

Frequently Asked Questions

What position is this tensioner cataloged for?

It is cataloged for the main drive position, tensioning the engine's main accessory drive belt on the listed applications.

Which vehicles does the Dayco 89266 fit?

It's a direct-fit for the Buick Lucerne, Cadillac Allante, DeVille, DTS, Eldorado and Seville, Oldsmobile Aurora, and Pontiac Bonneville. See the Buyer's Guide tab for the specific years for each model.

What does an accessory drive belt tensioner do?

It uses a spring-loaded arm and pulley to maintain constant tension on the accessory drive belt, taking up slack and helping control belt flutter as the engine runs.

What are signs my tensioner may need replacing?

Belt squeal or chirp, a bouncing or vibrating tensioner arm, and rapid or uneven belt wear can be signs. Diagnose the cause before replacing, since these symptoms can have other sources.

What interchange numbers does this part replace?

It cross-references 38153, 49006, 49240, 419-117 (419117), 45847, 5847, 900022A, 999156A, and 6601890. Its own manufacturer part number is 89266.

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