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MUBEA Drive Belt Tensioner - 531250-E
MUBEA Drive Belt Tensioner - 531250-E
MUBEA Drive Belt Tensioner - 531250-E
MUBEA Drive Belt Tensioner - 531250-E

Mubea Drive Belt Tensioner 531250 E

MUBEA
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 531250-E
$71.93 - $71.93
$71.93
$71.93 - $71.93
$71.93
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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MUBEA

Drive Belt Tensioner

This product also goes by these part numbers: 06E 903 133 AG, 06E903133AG, 531250-E, 531250E, 06E 903 133 Q, 06E903133Q

This part also goes by the following cross reference.

Cross Reference Part Number: 06E903133AG, 06E903133Q, 531250E

Fits These Vehicles 52 applications
B8 A5
Make Model Engine Years
AUDI A5 (8T3) 3.2 FSI 2007–2012
AUDI A5 (8T3) 3.2 FSI quattro 2007–2012
AUDI A5 (8T3) S5 quattro 2011–2017
AUDI A5 Convertible (8F7) 3.2 FSI 2009–2012
AUDI A5 Convertible (8F7) 3.2 FSI quattro 2009–2012
AUDI A5 Convertible (8F7) S5 quattro 2009–2017
AUDI A5 Sportback (8TA) 3.2 FSI quattro 2009–2012
AUDI A5 Sportback (8TA) S5 quattro 2010–2017
B8 A4
Make Model Engine Years
AUDI A4 B8 (8K2) 3.2 FSI quattro 2007–2012
AUDI A4 B8 (8K2) 3.2 FSI 2008–2012
AUDI A4 B8 (8K2) S4 quattro 2008–2015
AUDI A4 B8 Avant (8K5) S4 quattro 2008–2015
AUDI A4 B8 Avant (8K5) 3.2 FSI quattro 2008–2012
AUDI A4 B8 Avant (8K5) 3.2 FSI 2008–2012
C6 A6
Make Model Engine Years
AUDI A6 Allroad C6 (4FH) 3.2 FSI quattro 2006–2008
AUDI A6 Allroad C6 (4FH) 3.0 TFSI quattro 2008–2011
AUDI A6 C6 (4F2) 2.4 2004–2008
AUDI A6 C6 (4F2) 3.2 FSI 2004–2009
AUDI A6 C6 (4F2) 3.2 FSI quattro 2004–2008
AUDI A6 C6 (4F2) 2.4 quattro 2005–2008
AUDI A6 C6 (4F2) 2.8 FSI 2006–2008
AUDI A6 C6 (4F2) 3.2 FSI quattro 2006–2008
AUDI A6 C6 (4F2) 2.8 FSI quattro 2007–2008
AUDI A6 C6 (4F2) 3.0 TFSI quattro 2008–2011
AUDI A6 C6 (4F2) 2.8 FSI 2008–2011
AUDI A6 C6 (4F2) 2.8 FSI quattro 2008–2011
AUDI A6 C6 (4F2) 2.8 FSI quattro 2008–2011
AUDI A6 C6 (4F2) 2.8 FSI 2008–2011
AUDI A6 C6 (4F2) 3.0 TFSI quattro 2008–2011
AUDI A6 C6 (4F2) 3.2 FSI 2009–2011
AUDI A6 C6 Avant (4F5) 3.2 FSI 2005–2008
AUDI A6 C6 Avant (4F5) 3.2 FSI quattro 2005–2008
AUDI A6 C6 Avant (4F5) 2.4 2005–2008
AUDI A6 C6 Avant (4F5) 2.4 quattro 2005–2008
AUDI A6 C6 Avant (4F5) 2.8 FSI 2006–2008
AUDI A6 C6 Avant (4F5) 2.8 FSI quattro 2007–2008
AUDI A6 C6 Avant (4F5) 3.0 TFSI quattro 2008–2011
AUDI A6 C6 Avant (4F5) 2.8 FSI 2008–2011
AUDI A6 C6 Avant (4F5) 2.8 FSI 2008–2011
AUDI A6 C6 Avant (4F5) 2.8 FSI quattro 2008–2011
AUDI A6 C6 Avant (4F5) 2.8 FSI quattro 2008–2011
AUDI A6 C6 Avant (4F5) 3.0 TFSI quattro 2008–2011
B7 A4
Make Model Engine Years
AUDI A4 B7 (8EC) 3.2 FSI 2005–2008
AUDI A4 B7 (8EC) 3.2 FSI quattro 2005–2008
A4
Make Model Engine Years
AUDI A4 B7 Avant (8ED) 3.2 FSI 2005–2008
AUDI A4 B7 Avant (8ED) 3.2 FSI quattro 2005–2008
AUDI A4 B7 Convertible (8HE) 3.2 FSI 2006–2009
AUDI A4 B7 Convertible (8HE) 3.2 FSI quattro 2006–2009
D3 A8
Make Model Engine Years
AUDI A8 D3 (4E2, 4E8) 3.2 FSI 2005–2010
AUDI A8 D3 (4E2, 4E8) 3.2 FSI quattro 2005–2010
AUDI A8 D3 (4E2, 4E8) 2.8 FSI 2007–2010
8R Q5
Make Model Engine Years
AUDI Q5 (8RB) 3.2 FSI quattro 2008–2012

Fitment data last updated: 2026-03-19

Fits 52 vehicle applications Check vehicle fitment before ordering View fitment

About this Belt Tensioner & Idler Pulley

The MUBEA 531250-E 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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