SKU: N91005902
Audi Genuine Engine Harmonic Balance Bolt - N91005902

Technical Specifications

• Thread Size & Length: M8 x 25 mm * Drive Type: Typically a triple square / Torx screw design.

• Previous Revision: It directly replaces the older part number N91005901.

Primary Applications & Descriptions

Depending on your vehicle's catalog layout, this exact part number is described under a few different names:

• Engine Component: It is heavily utilized as a Vibration Damper Bolt or Crankshaft Pulley Bolt. It is responsible for securing the harmonic balancer or drive belt pulley directly to the engine's crankshaft.

• Body Component: In convertible models (such as the Audi R8 Spyder or S4 Cabriolet), it is cataloged as a Body A-Pillar Bolt or Inner Pillar Bolt and is included with the windshield header assembly.

Common Vehicle Fitment

This bolt fits a wide variety of Audi vehicles spanning from 2004 to 2019, specifically paired with powerplants like the 3.0L V6 (Gas & Diesel), 3.2L V6, and 4.2L V8 engines. Common models include:

• Audi A4 / S4 / RS4

• Audi A6 / S6 / Allroad

• Audi A7 / S7

• Audi A8 / S8

• Audi Q5 / SQ5 / Q7

• Audi R8

• Brand: Audi

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