Dayco Accessory Drive Belt Tensioner Assembly 89211
Dayco Accessory Drive Belt Tensioner Assembly 89211 - view 2
Dayco Accessory Drive Belt Tensioner Assembly 89211
Dayco Accessory Drive Belt Tensioner Assembly 89211 - view 2

Dayco Accessory Drive Belt Tensioner Assembly P/N:89211

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$68.99
MPN: 89211
Item Package Quantity: 1
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Dayco Accessory Drive Belt Tensioner Assembly P/N:89211
Dayco Accessory Drive Belt Tensioner Assembly P/N:89211
$68.99

Keep the serpentine belt properly loaded and every driven accessory spinning with the Dayco Accessory Drive Belt Tensioner Assembly (MPN 89211). It installs as a direct-fit replacement for the 1987-1993 Chevrolet S10, 1987-1989 Chevrolet S10 Blazer, 1987-1990 GMC S15, 1987-1989 GMC S15 Jimmy, 1991-1993 GMC Sonoma, and 1989-1991 Isuzu Trooper, all with the V6-2.8L engine.

  • Automatic design: uses an internal spring to apply and maintain consistent tension on the belt without manual adjustment.
  • Single flat pulley: one pulley measuring 90 mm in diameter and 27 mm wide.
  • Serpentine belt type, with clockwise rotation.
  • Country of origin: United States.

As the tensioner wears, its spring can weaken and the pulley can develop play, letting the belt lose tension and slip. If a worn tensioner is the cause of belt squeal, chirp, or slippage, this assembly replaces it — diagnose the source first, since those signs can also come from other components. Manufacturer part number 89211.

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

38130, 49001, 49230, 419-118, 45870, 5870, 180211, 900052A, 999050A, 6601891, 14102645, 8141026450, 8-14102-645-0

Frequently Asked Questions

What does this tensioner do?

It's an automatic accessory drive belt tensioner that uses an internal spring to keep consistent tension on the serpentine belt, so the driven accessories stay properly loaded.

What vehicles does it fit?

Direct-fit for the 1987-1993 Chevrolet S10, 1987-1989 S10 Blazer, 1987-1990 GMC S15, 1987-1989 S15 Jimmy, 1991-1993 GMC Sonoma, and 1989-1991 Isuzu Trooper with the V6-2.8L.

How many pulleys does it have?

One pulley — a single flat pulley measuring 90 mm in diameter and 27 mm wide.

What are signs the tensioner may need replacing?

Belt squeal or chirp, belt slippage, or a loose/worn pulley. Diagnose the cause first, since these signs can have other sources; if a worn tensioner is the cause, this replaces it.

Where is this part made?

Country of origin: United States.

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