HomeEngine > Valve Train ComponentsDayco 84109 Engine Timing Belt Component Kit
Part #: 84109

Dayco 84109 Engine Timing Belt Component Kit

Timing Component Kit
⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Timing Component Kit
🚗Fitment: Audi and Volkswagen, A4, A4 Quattro, and Passat
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Reliable Timing Component Kit for Audi and Volkswagen Engines

The Dayco Timing Component Kit 84109 is designed to provide precise engine timing for select Audi and Volkswagen models. Engineered to meet OEM specifications, this kit supports the proper function of your vehicle's valve train system, ensuring smooth and efficient operation.

  • Complete engine timing belt component kit for accurate timing
  • Compatible with Audi A4, A4 Quattro, and Volkswagen Passat models
  • Includes all necessary components for valve train timing maintenance
  • Manufactured by Dayco, a trusted brand in automotive engine parts
  • Part number 84109 for easy identification and fitment verification

About the Dayco Timing Component Kit

The Timing Component Kit from Dayco is a comprehensive solution designed to maintain and restore the timing system of your engine. This kit includes essential components that work together to synchronize the camshaft and crankshaft, which is critical for valve train performance. Using a complete kit like the Dayco 84109 helps ensure compatibility and reduces the risk of premature wear or failure.

Product Details and Compatibility

This engine timing belt component kit is specifically compatible with Audi A4, Audi A4 Quattro, and Volkswagen Passat models. The kit supports the valve train components by maintaining proper timing belt tension and alignment, which is vital for engine efficiency and longevity. The Dayco 84109 kit is designed to meet the exacting standards required for these vehicles, providing a reliable replacement option for maintenance or repair.

Common Applications and Issues Addressed

  • Restores proper timing belt tension and alignment
  • Prevents engine misfires caused by timing belt wear
  • Reduces risk of valve train damage due to timing failure
  • Addresses noise or vibration related to worn timing components
  • Supports scheduled maintenance to avoid costly engine repairs

Installation Notes and Tips

Installation of the Dayco Timing Component Kit 84109 should be performed by a qualified technician familiar with Audi and Volkswagen engine timing systems. Proper torque specifications and alignment procedures must be followed to ensure optimal performance. It is recommended to replace all components in the kit simultaneously to maintain system integrity and avoid premature failure.

Quality Assurance and Warranty

Dayco manufactures its Timing Component Kits to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 84109 may vary, Dayco products typically come with a limited warranty against defects in materials and workmanship. Always verify warranty terms with the supplier or manufacturer documentation.

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006AudiA41.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2005AudiA41.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2005AudiA4 Quattro1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2005VolkswagenPassat1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2004AudiA41.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2004AudiA4 Quattro1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2004VolkswagenPassat1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2003AudiA41.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2003AudiA4 Quattro1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2003VolkswagenPassat1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2002AudiA41.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2002AudiA4 Quattro1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2002VolkswagenPassat1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit
2001AudiA41.8LL4N/AFrom Chassis 8D-1-042-385; Includes: Camshaft Belt Tensioner, Camshaft Belt Idler (Hydraulic Actuator not Included); Timing Component Kit
2001AudiA4 Quattro1.8LL4N/AFrom Chassis 8D-1-042-385; Includes: Camshaft Belt Tensioner, Camshaft Belt Idler (Hydraulic Actuator not Included); Timing Component Kit
2001VolkswagenPassat1.8LL4N/AIncludes Camshaft Belt Tensioner and Idler, Hydraulic Actuator not included.; Timing Component Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

84109

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.