CMT Diagnostics
& Repair
Mobile Diesel Diagnostics & Repair
Panama City, FL · Fleet · Diesel · Automotive · DPF & Lift Gate · DOT & Crane Inspections · Equipment & Car Repair · Panama City to Destin
Expert mobile mechanic for fleet repair, automotive repair, diesel repair, DPF cleaning & repair, lift gate & hydraulic repair, reefer unit & trailer repair, DOT inspections, crane inspections, equipment repair & car repair. On-site diagnostics & preventive maintenance for Class 3–8 trucks, semi trucks, big rigs, heavy equipment & passenger vehicles — Cummins, Caterpillar, Detroit, Freightliner, Peterbilt, Kenworth, International, Volvo & Mack. We come to your location 24/7 for emergency roadside assistance along Highway 98 & Interstate 10 from Mexico Beach to Fort Walton, FL.
Mobile Diesel, Fleet & Equipment Repair
From medium-duty to heavy-haul — on-site fleet repair, automotive repair, diesel repair, DPF cleaning & DEF service, lift gate & hydraulic repair, reefer unit & trailer repair, DOT inspections, crane inspections, equipment repair, diagnostics, and preventive fleet maintenance for every class of truck and equipment. Cummins, Caterpillar, Detroit, Freightliner, Peterbilt, Kenworth, International, Volvo & Mack — diagnosed and repaired at your location from Panama City to Destin along Highway 98 & Interstate 10, Mexico Beach to Fort Walton, FL.
Medium Duty Services
Service Areas
Headquartered in Panama City, FL — providing 24/7 mobile diesel, fleet, automotive, DPF cleaning, lift gate, reefer & trailer repair, DOT, crane & equipment repair from Panama City to Destin, Mexico Beach to Fort Walton along Highway 98 & Interstate 10.
Mexico Beach → Panama City → Panama City Beach → Santa Rosa Beach → Destin → Fort Walton Beach
DeFuniak Springs → Crestview → Bonifay → Chipley → Marianna
Bay County
Gulf County
Walton County
Okaloosa County
Holmes County
Washington County
Jackson County
We take calls from across Northwest Florida. Call us — we'll make it work.
(850) 281-0922 →Mobile mechanic near me · Mobile diesel mechanic near me · Fleet repair near me · Lift gate repair near me · DPF cleaning near me · Semi truck repair near me · Trailer repair near me · Roadside diesel repair near me · Mobile truck repair near me · Commercial truck mechanic near me · Mobile automotive repair near me · Hydraulic repair near me · Reefer repair near me · DOT inspection near me — serving Panama City, Panama City Beach, Lynn Haven, Callaway, Parker, Mexico Beach, Port St. Joe, Santa Rosa Beach, Inlet Beach, Seacrest, Rosemary Beach, Alys Beach, Watersound, Grayton Beach, Seaside, 30A, Destin, Niceville, Freeport, Fort Walton Beach & Crestview, FL.
Why Choose CMT
Panama City's trusted mobile repair partner — expert fleet repair, automotive repair, diesel repair, DOT inspections, crane inspections, equipment repair, car repair, DPF cleaning & regeneration, lift gate & hydraulic repair, reefer unit & trailer repair, Cummins/Caterpillar/Detroit repair, and 24/7 emergency roadside service delivered to your jobsite, yard, or roadside from Panama City to Destin along Highway 98 & Interstate 10, Mexico Beach to Fort Walton, FL.
Advanced Diagnostics
Factory-level scan tools for every make. Cummins Insite, Detroit Diagnostic, JPRO, Nexiq — we find the problem fast.
Electrical & Aftertreatment
DPF regeneration, DEF system repair, EGR servicing, and complete electrical diagnostics for modern diesel systems.
DOT & FMCSA Compliance
Annual inspections, brake adjustments, and compliance repairs. Keep your fleet legal and rolling.
24/7 Emergency Response
Broken down on the side of the road? We dispatch immediately. Your uptime is our priority — any time, day or night.
Fleet Maintenance Programs
Comprehensive scheduled PM programs for full commercial fleets. We keep every truck in your fleet running — so you can focus on the road.
Lift Gate & Hydraulic Repair
Maxon, Palfinger, Anthony, Waltco & Hidromiel lift gate repair. Hydraulic pump and cylinder service, reefer unit repair, and trailer repair — on-site from Panama City to Destin.
Our Work in the Field
Heavy equipment repair, Class 8 truck service & DOT inspections across Panama City and the Florida Panhandle.
Trusted Across the Florida Panhandle
Fleet managers, owner-operators, and construction companies from Panama City to Fort Walton rely on CMT Diagnostics and Repair.
"CMT keeps our entire fleet of logging trucks running. They come out to our yard for preventive maintenance and never leave us stranded. Best mobile diesel mechanic in the Panhandle, hands down."
"Broke down on I-10 at 2am with a bad fuel pump. CMT was there in 45 minutes and had me back on the road before sunrise. Fair pricing and honest work — that's rare these days."
"They handle all our heavy equipment repair on-site. Excavators, loaders, our crane inspections — everything. Having one mobile mechanic who knows our whole fleet saves us thousands in towing and downtime."
"We switched to CMT for our DOT inspections and fleet maintenance a year ago. Zero roadside violations since. They're reliable, professional, and they actually show up when they say they will."
"Our refrigerated trucks can't afford downtime. CMT does our PM program on-site and catches problems before they become breakdowns. They've saved my business more than once."
"I run a single Peterbilt and every dollar matters. CMT diagnosed a Check Engine light that three other shops couldn't figure out. Turned out to be a sensor — didn't try to upsell me. Trust them completely."
Frequently Asked Questions
Answers about our mobile diesel repair services and dispatch coverage across the Florida Panhandle.
Still have questions? Dispatch is standing by 24/7.
(850) 281-0922Contact The Diesel Doctor
Panama City's trusted mobile mechanic — call for 24/7 emergency roadside diesel repair, fleet repair, automotive repair, car repair, DOT inspections, crane inspections, equipment repair, DPF cleaning & DEF service, lift gate & hydraulic repair, reefer unit & trailer repair, and Cummins/Caterpillar/Detroit/Freightliner/Peterbilt/Kenworth/International/Volvo/Mack repair. We dispatch fast from Panama City to Destin along Highway 98 & Interstate 10, Mexico Beach to Fort Walton, FL.
