Full-Service Diesel Repair
From engine overhauls to DOT inspections, Truck City Diesel keeps your fleet on the road. Milwaukee's trusted heavy-duty shop since 2012.
Engine Repair & Overhaul
Complete engine diagnostics, repair, and full overhauls for all major diesel platforms including Cummins, Detroit, Caterpillar, and more. We handle everything from minor tune-ups to complete rebuilds, getting your truck back to peak performance.
Transmission Service
Expert transmission diagnosis and repair for manual and automatic heavy-duty transmissions. We service Eaton Fuller, Allison, and other major brands to keep your drivetrain running smooth.
Brake Systems
Full air brake system inspection, repair, and replacement. We ensure your truck meets all federal safety standards with thorough brake work on drums, shoes, chambers, and air lines.
Electrical Systems
Comprehensive electrical diagnostics and repair for modern commercial trucks. From wiring harnesses to ECM issues, our technicians trace and fix electrical faults fast.
Diagnostics
State-of-the-art diagnostic equipment for all major truck brands. We read fault codes, perform system tests, and pinpoint issues quickly so you spend less time in the shop and more time on the road.
Fabrication
Custom metal fabrication for brackets, mounts, exhaust components, and structural repairs. Our in-house fab capabilities mean we can solve problems that other shops can't.
Preventive Maintenance
Scheduled PM services to keep your truck running reliably and avoid costly breakdowns. We offer oil changes, filter replacements, fluid checks, and full PM inspections tailored to your mileage intervals.
DOT Inspections
Annual DOT inspections performed by certified technicians. We inspect your vehicle to federal standards and provide documentation to keep you compliant and on the road legally.
Ready to Get Your Truck Back on the Road?
Call us or stop by our Milwaukee shop at 6242 N 64th St. We work on all makes and models.