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Febi Bilstein Belt Tensioner 170250

Febi Bilstein Belt Tensioner 170250

FEBI BILSTEIN
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 170250
$243.49 - $243.49
$243.49
$243.49 - $243.49
$243.49
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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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FEBI BILSTEIN

Belt Tensioner

This product also goes by these part numbers: 06N 903 133 B, 06N903133B, 170250

BrandFEBI BILSTEIN
QualityAftermarket
SKU170250
GTIN / UPC4054224702505
Product TypeBelt Tensioner
Cross Reference06N903133B
Fits These Vehicles 63 applications
B9 A4
Make Model Engine Years
AUDI A4 Allroad B9 (8WH, 8WJ) 2.0 TFSI quattro 2016–present
AUDI A4 Allroad B9 (8WH, 8WJ) 2.0 TFSI quattro 2016–2019
AUDI A4 Allroad B9 (8WH, 8WJ) 45 TFSI Mild Hybrid quattro 2018–present
AUDI A4 Allroad B9 (8WH, 8WJ) 2.0 TFSI Mild Hybrid quattro 2018–2019
AUDI A4 Allroad B9 (8WH, 8WJ) 45 TFSI Mild Hybrid quattro 2020–present
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI 2015–present
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI 2015–2019
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI quattro 2015–present
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI 2015–2019
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI quattro 2015–2019
AUDI A4 B9 (8W2, 8WC) 40 TFSI Mild Hybrid 2017–present
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI Mild Hybrid quattro 2017–2019
AUDI A4 B9 (8W2, 8WC) 2.0 TFSI Mild Hybrid 2017–2019
AUDI A4 B9 (8W2, 8WC) 45 TFSI Mild Hybrid 2018–2019
AUDI A4 B9 (8W2, 8WC) 45 TFSI Mild Hybrid quattro 2018–2019
AUDI A4 B9 (8W2, 8WC) 35 TFSI Mild Hybrid 2018–present
AUDI A4 B9 (8W2, 8WC) 40 TFSI Mild Hybrid 2020–present
AUDI A4 B9 (8W2, 8WC) 40 TFSI Mild Hybrid quattro 2020–present
AUDI A4 B9 (8W2, 8WC) 45 TFSI Mild Hybrid quattro 2020–present
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI quattro 2015–2019
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI quattro 2015–2019
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI 2015–present
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI 2016–2019
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI g-tron 2016–2019
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI 2016–2019
AUDI A4 B9 Avant (8W5, 8WD) 40 TFSI g-tron 2016–present
AUDI A4 B9 Avant (8W5, 8WD) 40 TFSI Mild Hybrid 2017–present
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI Mild Hybrid 2017–2019
AUDI A4 B9 Avant (8W5, 8WD) 2.0 TFSI Mild Hybrid quattro 2017–2018
AUDI A4 B9 Avant (8W5, 8WD) 45 TFSI Mild Hybrid 2018–2019
AUDI A4 B9 Avant (8W5, 8WD) 45 TFSI Mild Hybrid quattro 2018–2019
AUDI A4 B9 Avant (8W5, 8WD) 35 TFSI Mild Hybrid 2018–present
AUDI A4 B9 Avant (8W5, 8WD) 45 TFSI Mild Hybrid quattro 2020–present
AUDI A4 B9 Avant (8W5, 8WD) 40 TFSI Mild Hybrid quattro 2020–present
AUDI A4 B9 Avant (8W5, 8WD) 40 TFSI Mild Hybrid 2020–present
AUDI A4 B9 Avant (8W5, 8WD) 40 TFSI 2020–present
A6
Make Model Engine Years
AUDI A6 C8 (4A2) 45 TFSI Mild Hybrid quattro 2018–present
AUDI A6 C8 (4A2) 45 TFSI Mild Hybrid 2018–present
AUDI A6 C8 (4A2) 40 TFSI Mild Hybrid 2019–present
AUDI A6 C8 (4A2) 45 TFSI quattro 2019–present
AUDI A6 C8 (4A2) 45 TFSI 2019–present
AUDI A6 C8 (4A2) 45 TFSI Mild Hybrid 2020–present
AUDI A6 C8 (4A2) 45 TFSI Mild Hybrid quattro 2020–present
AUDI A6 C8 (4A2) 40 TFSI 2020–present
AUDI A6 C8 Avant (4A5) 45 TFSI Mild Hybrid quattro 2018–present
AUDI A6 C8 Avant (4A5) 45 TFSI Mild Hybrid 2018–present
AUDI A6 C8 Avant (4A5) 40 TFSI Mild Hybrid 2019–present
AUDI A6 C8 Avant (4A5) 40 TFSI 12V 2020–present
AUDI A6 C8 Avant (4A5) 45 TFSI 2020–present
AUDI A6 C8 Avant (4A5) 45 TFSI Mild Hybrid quattro 2020–present
AUDI A6 C8 Avant (4A5) 45 TFSI Mild Hybrid 2020–present
AUDI A6 C8 Avant (4A5) 40 TFSI 2020–present
AUDI A6 C8 Avant (4A5) 45 TFSI quattro 2022–present
Q5
Make Model Engine Years
AUDI Q5 (FYB, FYG) 45 TFSI Mild Hybrid quattro 2018–present
AUDI Q5 (FYB, FYG) 45 TFSI Mild Hybrid quattro 2020–present
AUDI Q5 (FYB, FYG) 40 TFSI Mild Hybrid quattro 2021–present
AUDI Q5 Sportback (FYT) 45 TFSI Mild Hybrid quattro 2020–present
AUDI Q5 Sportback (FYT) 40 TFSI Mild Hybrid quattro 2021–present
B9 A5
Make Model Engine Years
AUDI A5 (F53, F5P) 40 TFSI Mild Hybrid 2017–present
AUDI A5 Convertible (F57, F5E) 40 TFSI Mild Hybrid 2017–present
AUDI A5 Convertible (F57, F5E) 40 TFSI 2017–2020
AUDI A5 Sportback (F5A, F5F) 40 TFSI Mild Hybrid 2017–present
AUDI A5 Sportback (F5A, F5F) 40 TFSI 2017–present

Fitment data last updated: 2026-03-19

Fits 63 vehicle applications Check vehicle fitment before ordering View fitment

About this Belt Tensioner & Idler Pulley

The FEBI BILSTEIN 170250 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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