No one knows transmissions & torque converters like

Sonnax designs, develops and manufactures the highest quality aftermarket automotive products. We are the world’s largest full-line supplier of torque converter parts, and offer transmission and specialty driveline components through a global network of parts distributors.

Where to Buy

View Sonnax Part Instructions

Enter a Sonnax part number below to view its instructions. For general reaming instructions, click here.

Latest News

February 11, 2021

Get a New Sonnax Beanie – Now Available for a Limited Time Only

Stay warm this winter with an official Sonnax Performance beanie from the online fan store!

Available for a limited time only. Click here to order now

 

December 17, 2020

Sonnax Holiday Hours

Heads up! We’re taking a few days off for the holidays to spend treasured time with our families and enjoy the festivities.

Sonnax will be closed:

  • Dec. 24
  • Dec. 25
  • Dec. 28
  • Dec. 31
  • Jan. 1

Thank you for all your support. Wishing you a happy, healthy and prosperous New Year!

November 10, 2020

Shop the New Sonnax Fan Store

Get your official Sonnax gear in the new Sonnax Fan Store!

Choose from three cool designs including the popular Sonnax Performance and scary valve body designs, plus a brand new drivetrain design! All designs are available as a lightweight T-shirt, heavyweight T-shirt, v-neck T-shirt, or cozy hoodie. 

Click here to shop now!

 

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Enjoy a rewarding career and relaxing quality of life
in beautiful Southern Vermont.

Recognized as one of the Best Places to Work in Vermont and recipient of the Governor's Worksite Wellness Award, Sonnax is a leading supplier to the automotive aftermarket. We design, manufacture, test and distribute a wide variety of innovative, high quality products used to remanufacture torque converters, rebuild automatic transmissions, upgrade driveshafts and protect the driveline from over-torque damage.

Sonnax is one of the fastest growing companies in the state of Vermont. Our name has become synonymous with exceptional service, cutting-edge designs, technical knowledge and customer dedication. Join an exciting front-line team focused on developing and delivering the best products in the industry, a team whose imagination, hard work and results are rewarded.

Careers at Sonnax