Keep the serpentine belt properly tensioned and every driven accessory turning with the Dayco accessory drive belt tensioner assembly, MPN 89211. This automatic belt tensioner is a direct-fit replacement for many vehicles, among them the 1987-1993 Chevrolet S10 2.8L, 1991-1993 GMC Sonoma 2.8L and 1987-1990 GMC S15 2.8L; see the Buyer's Guide tab for the full list.
The tensioner keeps load on the belt to help the alternator and other belt-driven accessories turn without slippage. Signs this part may need replacing include belt squeal, a rattle or knock from the tensioner area, visible pulley wobble, or accelerated belt wear. If a worn tensioner is the cause of these symptoms, this Dayco drive belt tensioner replaces it.
Interchange: 419-118
419118 · 38130 · 49001 · 49230 · 45870 · 5870 · 180211 · 900052A · 999050A · 6601891
This part cross-references / interchanges with the following part numbers:
What vehicles does the Dayco 89211 tensioner fit?
It fits many vehicles, among them the 1987-1993 Chevrolet S10 2.8L, 1991-1993 GMC Sonoma 2.8L and 1987-1990 GMC S15 2.8L. See the Buyer's Guide tab for the full list.
Is this an automatic serpentine belt tensioner?
Yes. It is an automatic tensioner designed for the serpentine belt, with a clockwise direction.
What size is the pulley?
It has a single flat pulley with a 90 mm diameter and a 27 mm width.
What are the signs my belt tensioner needs replacing?
Common signs include belt squeal, a rattle or knock near the tensioner, visible pulley wobble, or unusual belt wear. Diagnose the cause before replacing.
Where is this tensioner made?
The country of origin is the United States.
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.
