Sonnax will be closed on Monday, May 28 in observance of Memorial Day.

Latest News

May 24, 2018

Updates to Privacy Policy

We’ve updated our Privacy Policy in light of the new data protection regulations in the European Union. Our update includes more detailed explanations of the data we collect and how we use it. This update takes effect on May 25, 2018. We understand that protecting your privacy is essential, and we’re committed to making sure you understand what we do with the information you’ve entrusted to us. Review the updated policy here.

Read More
May 03, 2018

Follow Sonnax on Instagram!

Exciting news – Sonnax is now on Instagram! Follow us @sonnaxtransmission for a chance to win a new T-shirt (see page for details).

Connect with us via all of your favorite social media platforms, plus sign up for Sonnax e-news for the latest updates delivered straight to your inbox:

Read More
April 04, 2018

Sonnax Joins Marmon Via Asset Sale

Sonnax Industries, Inc. is pleased to announce the sale of its assets to a newly-created subsidiary of Marmon Holdings, Inc., a Berkshire Hathaway company. The new company will operate as Sonnax Transmission Company. Terms of the acquisition were not disclosed.

As an employee-owned company, the sale was overwhelmingly approved by vote of Sonnax employees. Steve Boyer becomes President of Sonnax Transmission, and will work closely with Sonnax Industries CEO Tommy Harmon to ensure a smooth transition into Marmon.

“Joining Marmon affords Sonnax employees the support and stability of a very successful global organization while maintaining its homegrown, entrepreneurial feel,” Harmon said. “Above all, this expands what we can deliver to our customers, so our future is bright.”

Marmon Holdings comprises about 175 independent manufacturing and service businesses with facilities in 23 countries and total revenues exceeding $7.7 billion in 2017. Marmon is a subsidiary of Berkshire Hathaway, one of the world’s largest, most successful, and most highly respected companies.

Sonnax Transmission joins Marmon’s Automotive Aftermarket group, whose businesses are well known for providing innovative, engineered solutions for aftermarket installers.

Read More
View News Archive

Upcoming Events

ATRA Technical Seminar

1717 Disneyland Dr., Anaheim, CA

August 18, 2018, 8:00AM - 4:00PM

Learn More

SEMA Show 2018

Las Vegas, NV

October 30, 2018, 9:00AM - 4:00PM

Learn More

ATRA Powertrain Expo

Las Vegas, NV

November 01, 2018, 7:00AM - 5:00PM

Learn More
See All Events

Sonnax’s mission is to be the leading supplier of innovative drivetrain components to the automotive aftermarket by developing quality solutions that serve customer needs.