A Working Diesel Shop, Built for the Long Haul.
1776 Heavy Duty Diesel is a locally owned heavy-duty diesel repair shop serving South Dakota. We exist for one reason: to keep trucks, trailers, and fleets moving with honest diagnostics, dependable repairs, and the kind of fair pricing that earns long relationships.
Our Story
We started 1776 because South Dakota deserved a heavy-duty diesel shop that puts the truck and the operator first. No upsells. No parts-cannon repair. No vague "we'll get to it" timelines.
Six full bays, dealer-level diagnostic tooling for every major engine platform, and technicians who've spent their careers in heavy-duty diesel - that's what every customer gets, from the single-truck owner-operator to the fleet manager running fifty units.
Shop Capabilities
6 Full Service Bays
Including lifts rated for tandem-axle tractors and trailers.
Dealer-Level Scan Tools
Cat ET, Cummins Insite, Paccar Davie, Detroit DDDL, and more.
On-Site Welding & Fab
Structural welding, custom mounts, and trailer repair.
Hydraulic Hose Service
Custom hose fabrication while you wait.
Parts Relationships
Same-day and next-day parts from major heavy-duty suppliers.
Fleet Programs
Per-unit history, priority scheduling, consolidated billing.
DOT Certified
Annual inspections done in-house, sticker on the spot.
Locally Owned
Built and run by people who live where you drive.
Mission & Values
Keep trucks moving. Tell the truth. Fix it right the first time. Charge a fair price. Show up tomorrow ready to do it again.
Truck Down? Call Now.
Give us your fault codes or symptoms. You get a straight answer in plain language.