Sonnax Product Support

When you bring Sonnax into your shop, you get the best parts, the best tools – AND the best support. Why? Sharing knowledge is a big part of who we are. Our team of seasoned automotive professionals and product specialists is here to help you get the most out of Sonnax products by providing:

  • Vital information about the application and installation of Sonnax parts
  • Assistance with questions about product instructions
  • Support for Sonnax parts that appear defective or are not performing as expected

Before Contacting Sonnax

Help us help you by being prepared to answer key questions about the vehicle.

  • Know the vehicle year, make, model, engine type/displacement and transmission model. It is CRITICAL to properly identify some valve bodies. View ID Guides
  • Do a complete scan of the vehicle for codes.
  • Check the condition of the fluid.
  • Gather details on the vehicle’s recent repair history (if applicable).

Hours 8:30 a.m. – 5 p.m. ET, Mon. – Fri.

Call (800) 843-2600 ext. 398 or +1 (802) 463-0288

Email [email protected]

General Technical Questions

Our team can only assist with questions about Sonnax products. For help with general diagnosis, repair and unit builds, we recommend these resources:

Transmission Technical Hotlines:

Automatic Transmission Service Group (ATSG) (800) 245-7722

Automatic Transmission Rebuilders Association (ATRA) (805) 604-2000

Reference Information: All Data | Mitchell | Indentifix

Meet the Sonnax Tech Team

Sonnax employs a team of skilled technicians dedicated to working one-on-one with industry professionals. Whether you’re trying to identify the right Sonnax part for your build, looking for help in selecting parts for a powerhouse performance transmission or assistance with reaming, vacuum testing and product installation techniques, Sonnax is here for you!