Contact Us

Classic Diesel Designs is a dedicated, two person company specializing in bringing our classic diesels into the modern era. We are equipped for inhouse CNC machining, plasma cutting, automotive fabrication, custom injection rebuilding and much more. We are located in the beautiful Texas Hill Country, north of San Antonio.
If you have not received a confirmation email for your order, please check your spam folder.
Call/Text: 830-252-9767
For shipping cores, please forward all shipments to:
Classic Diesel Designs
100 Schneider Rd Suite D & E
Seguin Tx 78155 
Please ensure your core is stripped of all brackets, sensors and fittings, CDD is not responsible for extra parts shipped with cores.
9am-5pm CST. Monday-Friday
No walk-ins, appointments only.
For military and emergency responders discounts, email a current proof of identification to our sales email, and upon approval you will receive a 10% discount code to apply at checkout.
Keep the old iron, on the road!