Shipping Notice: Sonnax is conducting a physical inventory Thurs. and Fri., March 22-23. The warehouse is closed to shipping, but the sales team will still be available. Shipping will resume Mon., March 26.

Latest News

March 19, 2018

Important Shipping Notice

Sonnax is conducting a physical inventory on Thursday, March 22 and Friday, March 23. Our warehouse is closed to shipping on these days, but the sales team will be available to quote and provide information on product availability to you. Shipping will resume on Monday, March 26.

We apologize for any inconvenience this may cause. 

Please contact your Sonnax sales representative with any questions, or to place orders in advance of our shutdown. As always, we strive to provide the best service and support on order fulfillment and we truly appreciate your business.

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March 15, 2018

Introducing the New Sonnax Fan Store

You’ve asked how to get those awesome Sonnax T-shirts you see all over the place...and we heard you loud and clear. Now, in addition to entering our weekly Facebook giveaways, you can order your very own Sonnax gear online.

Choose from two cool designs available as a T-shirt or hoodie. All proceeds benefit Our Place Drop-in Center in Bellows Falls, VT.

Click here to shop now!


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March 14, 2018

Sonnax Wins Big in Top 10 Contest

Every year, Transmission Digest accepts nominations for the top 10 products and tools in the powertrain aftermarket. Readers vote for their favorites to determine the winners. 

The results are in: Sonnax won seven top product awards, plus a top tool award! Thank you all for your trust and support of Sonnax products – we couldn’t have done it without you!

7 Top Products

  • Chrysler 45/545/65/66/68RFE
    Smart-Tech® Overdrive Clutch Housing Kit: #72960-06K 
    Overcome the leading cause of Overdrive burnup and keep hardworking Dodge trucks on the road.
  • GM 4L60 & 4L60/65/70-E
    Heavy Duty 3-4 Clutch Backing Plate Kit: #74140-01K
    Significantly reduce backing plate flex for increased 3-4 clutch durability.
  • GM 4L60/65/70-E
    Performance Pack: #HP-4L60E-01
    A must-have for any heavy-duty vehicle and the very best foundation for racing.
  • GM 4L80/85-E
    Smart-Tech® Overrun Clutch Valve Kit: #34200-40K
    Outsmart overdrive roller clutch failure and protect your warranty.
  • GM 4T60/65-E
    Extended Length Forward Band Servo Pin Kit: #84571-01K
    Prevent burnt, broken or slipping forward bands.
  • Chrysler & Ford
    The Sure Cure® Kits
    Get everything you need to restore and enhance transmission performance in high-mileage units in one place, at one cost.

Top Tools

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Upcoming Events

ATRA Technical Seminar

2020 E American Blvd., Bloomington, MN

April 14, 2018, 8:00AM - 4:00PM

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ATSG Technical Seminar

500 Stevens Dr., Philadelphia, PA

April 14, 2018, 9:00AM - 4:00PM

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2018 TCRA Seminar

5951 Silver King Blvd., Cape Coral, FL

April 20, 2018, 8:00AM - 4:30PM

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Sonnax Industries is an Employee-Owned Company

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.