My name is Waldyr Mazzer, and I’ve been working in the diesel sector for over 40 years.

I am a certified Diesel Engine Technical Instructor by SENAI, one of the most respected technical training institutions in Brazil. Throughout my career, I’ve had the honor of serving as an instructor for diesel injection systems at Bosch Brazil, where I conducted training sessions across the country. I was also an instructor at Delphi and Denso Brazil, expanding my work to several countries in Latin America.

With over 25 years of experience as an educator, I’ve trained more than 3,000 professionals, directly contributing to the technical development of the diesel market.

I am the founder and director of TW Diesel, a company that is now a national reference in the remanufacturing of diesel injectors, delivering quality and trust across Brazil.

And I look forward to meeting you and sharing my knowledge.