Dayco 89203 belt tensioner for the 2000-2005 Chevrolet Impala V6 3.4L and other vehicles presses on the engine's serpentine belt to hold its tension. This Dayco belt tensioner is a single assembly with a flat pulley.
A worn serpentine belt tensioner can show up as a squealing or chirping belt, belt flutter or uneven belt wear. A tired drive belt or a failing idler pulley can make the same noise, so pin down which one it is before you replace the tensioner.
It is listed for a wide range of Chevrolet, Buick, Pontiac, Oldsmobile and Cadillac models, including the 1994-2005 Buick Century, the 1995-1999 Chevrolet Monte Carlo V6 3.1L and the 2000-2005 Monte Carlo V6 3.4L. The quantity is one per vehicle.
Fit and size
Build and materials
Interchange: 419-101
38105 · 38353 · 49001 · 49205 · 49395 · 45895 · 5895 · 180203 · 600425 · 6601874 · 999552
This part cross-references / interchanges with the following part numbers:
Does this Impala belt tensioner fit the 2000-2005 Chevrolet Impala V6 3.4L?
Yes. Dayco 89203 is listed for the 2000-2005 Chevrolet Impala V6 3.4L and for many other models. Look up your own year, model and engine in the "Vehicles it fits" section.
How big is the pulley on the Dayco tensioner?
The single flat pulley on Dayco 89203 is 90 mm in diameter and 30 mm wide.
Is this Dayco automatic belt tensioner made for a serpentine belt?
Yes. It is an automatic type with a clockwise direction, and its belt type is serpentine.
What can I look for to spot a worn belt tensioner pulley?
With the engine off and cool, look at the belt for cracks or uneven wear and at the pulley for rust or play. A squeal or chirp while driving is another sign, and a shop can test the rest.
Does Dayco 89203 interchange with part number 38105?
Yes. 38105 is one of the numbers Dayco 89203 replaces, along with 419-101 and 49001.
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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.
