CVT Overhaul Kits by TransTec®

Make sure you’re buying the best sealing kit you can to tackle your most challenging rebuilds


With more vehicles with CVTs on the road, it’s more important than ever that you choose the right seal kit to round out your rebuild. TransTec kits are produced by Freudenberg-NOK, the global leader in seal manufacturing. With over 168 years of sealing expertise, the company’s many resources and broad customer-oriented product portfolio offer OE expertise to the aftermarket.
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In CVT’s it is especially critical to have the right material compounds for a particular application. For example, high pressures and temperatures in the variator pulleys require sealing rings to be manufactured using premium materials. Materials such as Peek, Vespel® or Freudenberg-NOK’s proprietary Quantum® PTFE. Whether it’s a Duraprene® pan gasket or TransTec branded, post-cured grain-oriented gasket material, you can be sure you’re getting the highest quality components for your rebuild. TransTec kits feature more of the same transmission components that are supplied to Original Equipment Manufacturers globally than any other aftermarket brand.

Available Kits:


A Quarter of All Cars Sold in the US Come With a CVT

According to an analysis by Kelley Blue Book, today one out of every four new cars sold in the U.S. comes with a continuously variable transmission (CVT). Belt or chain driven, a CVT offers a continuous range of effective gear ratios, rather than a fixed number found in other mechanical transmissions. And while these applications are electronically controlled, they also contain a wide array of seals and gaskets just as the more traditional step units.


TransTec®, Duraprene® and Quantum® are registered trademarks of Freudenberg-NOK General Partnership.  Torlon® is a registered trademark of Solvay Specialty Polymers


  • Transtar tries to match the OE for each specific application. Most kits feature frictions from Borg Warner or Exedy. Some kits feature an improved selection to help correct common issues experienced with OE parts.

  • It would be easier to list the transmission applications that they don't fit! Transtar kits fit almost every application imaginable. Even high performance & heavy duty applications are addressed by Transtar's famous box kits.

  • Transtar's team of Product Category Managers is on hand to help you find the perfect kit for your unique application. Contact them directly at:

  • Sometimes a transmission application is so unique that a pre-built kit isn't available. Transtar's team of Product Category Managers is on hand to help you build the perfect kit for your unique application. Contact them directly at: