Corteco 80004350 Engine Crankshaft Pulley

Corteco 80004350 Crankshaft Pulley for Start-Stop Engines

The Corteco 80004350 engine crankshaft pulley is a decoupled harmonic pulley built for vehicles with start-stop function. With a 193 mm outer diameter, 5 ribs, and 6PK belt parameter, it is specified for Audi Q5, Audi Q7, Audi A6 Quattro, and Volkswagen Touareg applications that require this exact pulley configuration.

Key Features

• Engine crankshaft pulley from Corteco
• Decoupled design for start-stop equipped vehicles
• 5-rib, 6PK belt profile
• 193 mm outer diameter
• Direct-fit reference for select Audi and Volkswagen applications
• Part number 80004350 for catalog matching

Detailed Description

Corteco 80004350 is an OE-style crankshaft pulley for the engine accessory drive system. It is specified as a decoupled pulley, which is important on start-stop vehicles where belt drive behavior and vibration control must match the original engine setup. This pulley is listed for 2011-2016 Audi Q5, 2008-2016 Audi Q7, 2012-2014 Audi A6 Quattro, and 2009 and 2013-2016 Volkswagen Touareg applications with the noted 5-groove, 6PK configuration. The part number 80004350 is also useful when cross-checking service records and replacement catalogs.

This part cross-references OE-style numbers such as 059 105 251 AA and 059 105 251 AD for the same application.

What It Helps Address

• Worn or noisy crankshaft pulley operation
• Belt drive vibration in start-stop engine systems
• Accessory belt tracking issues tied to pulley wear
• Incorrect pulley fitment from mismatched rib count or diameter
• Replacement needs on Audi Q5, Audi Q7, Audi A6 Quattro, and Volkswagen Touareg engines

Installation Notes and Tips

Verify the pulley’s 193 mm outer diameter, 5-rib layout, and 6PK specification before installation. Confirm the vehicle is equipped with the start-stop function and match the OE reference numbers and engine accessory drive layout exactly. Because this is a decoupled pulley, proper alignment and belt condition should be checked during service to avoid repeat noise or drive issues.

Quality Assurance

Corteco supplies engine and sealing components to OE-level standards, and this pulley is cataloged with exact dimensional and application data for accurate replacement selection. Use the listed fitment and interchange references to confirm the correct match before ordering.