Diesel Performance and Repair Shop in Dacula, GA
Dacula started as Chinquapin Grove along the old rail line and now runs on Winder Highway, home to commuters, trade crews, and diesel owners who count on their trucks daily. Southern Built Auto Works brings dedicated Duramax, PowerStroke, and Cummins expertise to the Dacula area, in eastern Gwinnett County. Whether you are merging onto University Parkway or working closer to home, we treat every diesel like it’s our own.
Trusted Diesel Technicians in Dacula, Georgia
Dacula is full of commuters, trade and delivery crews, and diesel owners who expect more than a quick guess and an oil change. Real diesel work means technicians who have rebuilt a PowerStroke before reaching for a parts catalog, not a general mechanic learning on your dime. Our Jefferson, GA shop sits 23 miles northeast up Winder Highway, putting a true diesel specialist within easy reach of Dacula.




Southern Built Auto Works works on three platforms and three platforms only: Duramax, PowerStroke, and Cummins. No gas engines, no guesswork, just the deep diagnostics Dacula trucks need to stay on the road.
Duramax Services in City St
- General Service & Fluid Changes
- Performance Modifications
- Turbo Replacements
- Glow Plug Inspection/Replacement
- EGR System Cleaning
- DPF Regeneration or Cleaning
PowerStroke Services in City St
- General Service & Fluid Changes
- Performance Modifications
- Turbo Replacements
- Glow Plug Inspection/Replacement
- DPF Regeneration or Cleaning
- EGR System Cleaning
- High-Pressure Fuel Pump (HPFP) Inspection
Cummins Services in City St
- General Service & Fluid Changes
- Performance Modifications
- Turbo Replacements
- Grid Heater Checks
- DPF Regeneration or Cleaning
- EGR System Cleaning
About Us
Southern Built Auto Works was built by diesel people, for diesel people, not the general public. We work only on Duramax, PowerStroke, and Cummins trucks, so Dacula-area drivers get the same focused attention as anyone who rolls through our bay door. From our shop on Athens Highway in Jefferson, about 23 miles from Dacula up Winder Highway through Winder, we have built our name on fair pricing and diagnostics that land right the first time.
Whether you need a tune, an EGR service, a full DPF cleaning, or a Duramax turbo replacement, our techs always diagnose before they replace parts, so you are never paying for someone else’s guesswork. We stand behind every single job the same way we would our own truck. Dacula customers make the trip up Winder Highway because a shop that truly knows diesel saves real money and headaches down the road.









What Our Clients Are Saying
Other Areas We Serve
We proudly serve diesel truck owners throughout Dacula and the surrounding region.