Dayco 84109 Engine Timing Belt Component Kit

Dayco Timing Component Kit for Audi and Volkswagen

The Dayco 84109 Timing Component Kit is built for engine timing service on select Audi A4, Audi A4 Quattro, and Volkswagen Passat applications. It is a timing belt component kit that includes the camshaft belt tensioner and idler, with the hydraulic actuator not included.

Key Features

• Dayco Timing Component Kit from the Timing Component Kit product line
• Engine timing belt component kit for valve train service
• Includes camshaft belt tensioner and idler
• Hydraulic actuator not included
• Direct fit for select Audi A4, Audi A4 Quattro, and Volkswagen Passat models
• Part number 84109 for catalog and service reference

Detailed Description

Dayco 84109 is an engine timing belt component kit for timing system maintenance on 2001-2006 Audi A4, 2001-2005 Audi A4 Quattro, and 2001-2005 Volkswagen Passat applications. This kit is intended for timing belt service where the camshaft belt tensioner and idler are replaced together, while the hydraulic actuator is not included. This part cross-references CARQUEST 84109 and Duralast 84109 for the same application.

The Dayco Timing Component Kit line focuses on timing service components used in engine valve train maintenance. For Audi A4, Audi A4 Quattro, and Volkswagen Passat timing belt service, 84109 provides the listed belt-drive components needed for the specified applications.

What It Is Used For

• Replacing worn timing belt drive components during scheduled engine service
• Addressing belt noise from a worn camshaft belt tensioner or idler
• Correcting timing system wear found during inspection
• Restoring proper belt tracking in select Audi A4 and Volkswagen Passat engines
• Supporting timing belt maintenance on Audi A4 Quattro applications

Installation Notes and Tips

• Verify engine code and chassis break information before ordering, especially for 2001 Audi A4 and A4 Quattro models from chassis 8D-1-042-385.
• Confirm that the hydraulic actuator is not required for your specific service plan, since it is not included.
• Follow factory timing marks and service procedures during installation.
• Inspect related timing components and seals while the front engine service area is open.

Quality Assurance

Dayco supplies timing components for engine service applications, and this kit is cataloged for the listed Audi and Volkswagen fitments. Part number 84109 is specified for the applications shown above.

• Fits 2002-2006 Audi A4, N/A
• Fits 2002-2005 Audi A4 Quattro, N/A
• Fits 2001-2005 Volkswagen Passat, N/A
• Fits 2001 Audi A4, N/A
• Fits 2001 Audi A4 Quattro, N/A