Dayco 89342 belt tensioner for the 2004-2005 BMW X3 6-cylinder 2.5L, the 2004-2006 X3 6-cylinder 3.0L and other vehicles holds the serpentine belt at the right tension. It is set in the main drive that runs the alternator and power steering.
- Automatic-type tensioner
- Counter-clockwise direction
- Built for a serpentine belt
- Single flat pulley, 70 mm in diameter and 26 mm wide
Quick facts
- Part: Dayco 89342 belt tensioner
- Also called: serpentine belt tensioner
- Fits: the 2004-2005 BMW X3 6-cylinder 2.5L, the 2004-2006 X3 6-cylinder 3.0L and other vehicles
- Position: Alternator and power steering, main drive
- Condition: New
A worn serpentine belt tensioner can show up as belt squeal, a noisy or wobbling pulley or a frayed belt. Before you replace it, rule out a worn belt and a failing alternator or power steering pump bearing, since either can make similar noises.
Fits
This tensioner is listed for a wide range of BMW models. Besides the vehicles in the opening, those include the 2001-2006 BMW 325Ci and the 2001-2006 BMW X5 6-cylinder 3.0L. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: Alternator and power steering, main drive
- Quantity per vehicle: 1
- Number of pulleys: 1
- Pulley diameter: 70 mm
- Pulley width: 26 mm
Build and materials
- Type: Automatic
- Direction: Counter-clockwise
- Belt type: Serpentine
- Pulley: Flat
- Condition: New
In the box
One belt tensioner. A car takes one, so this listing covers it.
Interchange: 38201 · 780204 · 49282 · 999141A
This part cross-references / interchanges with the following part numbers:
38201, 780204, 49282, 999141A, 11 28 1 427 2, 11 28 1 427 252, 11 28 1 735 899, 11 28 1 748 832
Frequently Asked Questions
Is Dayco 89342 the BMW X5 belt tensioner for 2001-2006 models with the 6-cylinder 3.0L?
Yes. Dayco 89342 is listed for the 2001-2006 BMW X5 with the 6-cylinder 3.0L engine, and the vehicle takes one tensioner.
Is Dayco 89342 a BMW X3 belt tensioner for the 2004-2005 6-cylinder 2.5L and the 2004-2006 6-cylinder 3.0L?
Yes. Dayco 89342 is listed for the 2004-2005 BMW X3 with the 6-cylinder 2.5L and the 2004-2006 X3 with the 6-cylinder 3.0L.
What kind of pulley does this Dayco automatic belt tensioner have?
Dayco 89342 has one flat pulley, 70 mm in diameter and 26 mm wide. It is an automatic tensioner with counter-clockwise direction for a serpentine belt.
How can I tell if a Dayco belt tensioner is wearing out?
A squealing or chirping belt, a noisy or wobbling pulley, or visible belt wear can be signs of a worn tensioner. Look at the belt only with the engine off and cool.
Does the Dayco tensioner 89342 replace number 780204?
Yes. 780204 is one of the numbers listed for Dayco 89342, along with 38201, 49282 and 999141A.
