Repair Services

Accessory Belt Idler Pulley – 06H 903 341D (URO)

The 06H 903 341D is an URO Parts OE-style accessory belt idler pulley for select Audi B8 platform vehicles equipped with the 2.0T engine. Built to factory profile with a high-quality sealed bearing, this direct-fit pulley restores proper belt alignment and quiet accessory drive operation — no modifications required.

$14.00

  • Description
  • Additional information

Description

The 06H 903 341D Accessory Belt Idler Pulley by URO Parts is an OE-style replacement designed for select Audi vehicles equipped with the 2.0T TFSI engine on the B8 platform. This idler pulley guides the v-ribbed (serpentine) belt through its routing path, maintaining proper belt alignment and load distribution across belt-driven accessories — including the alternator and A/C compressor.

Because the idler pulley spins continuously at engine speed, it endures constant load, heat, and contamination over time. As the bearing wears, it generates chirping or grinding noise, develops wobble, and causes belt flutter along with uneven belt wear. Furthermore, a failing idler pulley accelerates accessory belt deterioration and can ultimately lead to unexpected belt loss. Replacing the worn unit with this 06H 903 341D restores quiet, consistent belt tracking and long-term accessory drive reliability.

06H 903 341D — URO Parts OE-Style Engineering

URO Parts is a brand under APA Industries — one of the world’s largest automotive parts distributors — specializing in high-quality OE-style European replacement components. The 06H 903 341D features a premium NTN/NSK sealed bearing that delivers smooth, quiet rotation and extended service life. In addition, URO manufactures the pulley to OE dimensions, ensuring correct belt clearances and alignment. The high-strength alloy construction also withstands the heat and vibration demands of the Audi 2.0T TFSI engine bay, making this a durable, dependable long-term replacement.

Signs Your Idler Pulley Needs Replacing

Catching idler pulley failure early prevents accessory belt loss and downstream damage. Watch for these warning signs:

  • Chirping, squealing, or grinding noise from the front of the engine that changes with RPM

  • Visible pulley wobble or lateral play when inspecting at idle

  • Belt flutter, vibration, or inconsistent tracking across pulleys

  • Accelerated or uneven wear across the width of the accessory belt

  • Roughness or resistance when spinning the pulley by hand with the engine off

If any of these indicators appear, replace the idler pulley promptly to avoid further damage.

Key Features

  • OEM Reference: 06H 903 341D (supersedes 06H 903 341C)

  • Brand: URO Parts — OE-style European replacement supplier

  • Premium NTN/NSK sealed bearing for smooth, quiet rotation

  • Manufactured to OE dimensions for correct belt alignment and clearances

  • High-strength alloy construction resistant to engine heat and vibration

  • Direct-fit replacement — no modifications required

  • 24-month unlimited mileage warranty

  • Helps prevent belt squeal, flutter, and premature accessory belt wear

Service Notes

  • First, inspect the accessory belt and replace it if it shows cracking, glazing, or fraying — replacing the pulley and belt together ensures a complete, lasting service

  • Next, check the belt tensioner and all remaining pulleys for bearing noise or play; replace any worn components at the same time to prevent repeat failures

  • Finally, verify correct belt routing and confirm the belt sits fully in all pulley grooves before starting the engine

06H 903 341D Idler Pulley — Compatibility & Applications

Always verify fitment by VIN before ordering. Multiple variants may exist within the same model year.

Make Model Generation Year Range Engine
Audi A4 / A4 Quattro B8 2009–2012 2.0T TFSI
Audi A4 Quattro Avant B8 2009–2012 2.0T TFSI
Audi A5 / A5 Quattro B8 2010–2011 2.0T TFSI
Audi A5 Cabriolet / A5 Quattro Cabriolet B8 2010–2011 2.0T TFSI
Audi Q5 8R 2011–2012 2.0T TFSI

Cross Reference Numbers

  • 06H 903 341D (OEM VAG — current)

  • 06H 903 341C (OEM VAG — predecessor)

  • INA 5320694100

Additional information

Weight 0.80 lbs
Dimensions 5.0 × 5.0 × 2.0 in