About Us
Our journey started from humble beginnings and has grown into a trusted repair shop equipped with three bays, one mobile unit, and a team of four master technicians, all committed to getting you back on the road safely and efficiently.




Our story begins with Dale Jeff,
a disabled veteran with a knack for diesel engines and a vision for better repair services. While in Mississippi, Dale encountered trucks that had been sidelined for weeks without a fix. With his skilled hands and a no-nonsense attitude, Dale fixed what others couldn’t in just an hour. This display of skill and honesty caught the eye of a future business partner, setting the stage for Apex Diesel Repair and Parts in Texas.
Since then, Dale’s commitment to excellence and continuous learning has been the cornerstone of our shop. From securing a DOT license to becoming master certified in various diesel truck components, Dale’s dedication has ensured that we can tackle any issue a truck might face.
At Apex Diesel Repair and Parts, we’re more than just a team; we’re a family. Helen, our office manager from Mississippi, ensures that everything runs smoothly behind the scenes, while our mechanics foster an environment of self-improvement and mutual respect. We believe in teaching and learning, both from each other and through formal training. This philosophy has helped our employees grow from novices to experts under our roof.
We pride ourselves on being straightforward and honest with our customers. When you bring your truck to us, expect a warm welcome and a clear explanation of what needs to be done. Our goal is not just to fix your vehicle but to ensure you understand the work we’re doing. Our wide scope of work means we’ve got you covered for everything your truck might need, thanks to our extensive training and hands-on experience.
Let us show you why we’re the go-to shop for heavy-duty diesel repairs.
Welcome to the Apex Diesel Repair and Parts family—where every truck gets the care and respect it deserves.
CONTACT US
Located between San Antonio & Austin at the junction of I35 & Highway 46, trust the diesel truck repair shop of Apex Diesel Repair in New Braunfels. Get in touch with us today with any questions, to request a quote, and to schedule service!