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URO PARTS Drive Belt Tensioner - 11-28-7-838-797

URO PARTS Drive Belt Tensioner - 11-28-7-838-797

URO PARTS
Availability:
5+ in stock, ready to be shipped

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SKU 11-28-7-838-797
$48.51 - $48.51
$48.51
$48.51 - $48.51
$48.51
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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URO PARTS

Drive Belt Tensioner

This product also goes by these part numbers: 11 28 7 838 797, 11287838797, 11-28-7-838-797

This part also goes by the following cross reference.

Cross Reference Part Number: 11287838797

Fits These Vehicles 31 applications
BMW
Make Model Engine Years
BMW Z4 3.2L6 2006–2008
BMW X5 3.0L6 2001–2006
BMW X3 3.0L6 2004–2006
BMW M3 3.2L6 1996–1999
BMW M3 3.2L6 2001–2006
BMW 330Ci 3.0L6 2001–2006
BMW 325Ci 2.5L6 2001–2006
BMW Z4 3.0L6 2003–2005
BMW Z4 2.5L6 2003–2005
BMW X3 2.5L6 2004–2005
BMW 530i 3.0L6 2001–2005
BMW 525i 2.5L6 1990–1995
BMW 525i 2.5L6 2001–2005
BMW 330xi 3.0L6 2001–2005
BMW 330i 3.0L6 2001–2005
BMW 325xi 2.5L6 2001–2005
BMW 325i 2.5L6 1992–1995
BMW 325i 2.5L6 2001–2005
BMW Z3 3.0L6 2001–2002
BMW Z3 2.5L6 1999–2002
BMW Z3 3.2L6 1998–2002
BMW Z3 2.8L6 1997–2000
BMW 528i 2.8L6 1997–2000
BMW 328i 2.8L6 1996–2000
BMW 328Ci 2.8L6 2000–2000
BMW 323i 2.5L6 1998–2000
BMW 323Ci 2.5L6 2000–2000
BMW 328is 2.8L6 1996–1999
BMW 323is 2.5L6 1998–1999
BMW M3 3.0L6 1995–1995
BMW 325is 2.5L6 1992–1995

Fitment data last updated: 2026-06-30

Fits 31 vehicle applications Check vehicle fitment before ordering View fitment

About this Belt Tensioner & Idler Pulley

The URO 11-28-7-838-797 is part of the accessory drive that runs the alternator, A/C compressor and other components. The tensioner keeps the drive belt at the right tension and idler pulleys guide it, and their bearings wear over time.

Frequently asked questions

What does a belt tensioner do?

It applies constant pressure to the drive belt so it grips the pulleys without slipping, and it absorbs the belt's movement as engine speed changes. Idler pulleys guide the belt around its path.

What are the signs of a worn tensioner or idler pulley?

A squeal or chirp from the front of the engine, a rumbling or grinding bearing noise, a belt that flutters, jumps or wears unevenly, or a tensioner arm that bounces or has visible play.

What should I replace along with it?

Replace the drive belt at the same time, and consider replacing the other pulleys if they have similar mileage, since their bearings wear at a similar rate.

Can I replace a tensioner myself?

Usually, yes. Note or photograph the belt routing before removing it, release the tension with the correct tool, and check the new belt sits correctly in every pulley groove before starting the engine.

How do I make sure this belt tensioner or pulley fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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