Dorman 420-117 Engine Timing Belt Tensioner

Overview of Dorman Engine Timing Belt Tensioner 420-117

The Dorman 420-117 engine timing belt tensioner is designed for reliable performance in select Audi and Volkswagen models. This automatic hydraulic tensioner helps maintain proper timing belt tension, ensuring smooth engine operation and longevity.

• Constructed from durable aluminum alloy for strength and corrosion resistance
• Automatic hydraulic tensioner style for consistent belt tension
• Die cast aluminum contact surface for reduced wear
• Standard replacement grade for dependable function
• Includes one tensioner; bracket and pulley not included

Detailed Product Description

The Dorman 420-117 timing belt tensioner is engineered with an aluminum alloy body that offers a balance of lightweight design and durability. Its automatic hydraulic mechanism adjusts tension dynamically, reducing the need for manual adjustments and helping to maintain optimal timing belt performance. The die cast aluminum contact surface minimizes friction and wear on the belt, contributing to extended component life. This tensioner is a standard replacement part, designed to meet OEM specifications for a range of Audi and Volkswagen vehicles including the A4, A4 Quattro, Beetle, Bora, Golf, Jetta, Passat, TT, and TT Quattro.

Compatible Vehicles and Applications

This timing belt tensioner is compatible with the following makes and models:

• Audi A4 and A4 Quattro
• Volkswagen Beetle, Bora, Golf, Jetta, Passat, TT, and TT Quattro

Use the Dorman 420-117 tensioner to address issues related to timing belt tension and engine timing accuracy.

Common Issues Addressed by This Timing Belt Tensioner

• Excessive timing belt slack causing engine misfires or noise
• Premature belt wear due to improper tension
• Hydraulic tensioner failure leading to timing belt failure
• Engine performance problems related to timing belt tension loss
• Vibration or rattling noises from the timing belt area

Installation Notes and Tips

• Ensure compatibility with your specific Audi or Volkswagen model before installation
• Replace the timing belt tensioner along with the timing belt for optimal results
• Follow manufacturer torque specifications when mounting the tensioner
• Inspect related components such as pulleys and water pump during installation
• Professional installation is recommended to maintain engine timing accuracy

Quality Assurance and Warranty

Dorman 420-117 is manufactured to meet or exceed OEM standards for fit and function. This standard replacement tensioner undergoes quality control testing to ensure reliable operation. Warranty coverage details can be obtained from the product packaging or Dorman's official documentation.