Heavy-Duty Truck Repair — Charlotte, NC Area
CTR Heavy Duty serves Charlotte-area fleets from our full-service facility in Concord, NC — just 15 minutes from Uptown Charlotte via I-85. ASE and TRP certified technicians, 44 specialized services, and 30+ years of experience keeping Class 6-8 commercial vehicles on the road.
Why Charlotte Fleets Choose CTR Heavy Duty
Charlotte is one of the largest trucking hubs on the East Coast, and fleets operating in the metro area need a repair partner they can rely on. CTR has been that partner since 1995 — providing expert heavy-duty repair from our Concord facility just off I-85.
ASE & TRP Certified Technicians
Our heavy-duty technicians hold ASE and TRP certifications in diesel engines, braking systems, electrical, and commercial vehicle maintenance. Factory-trained expertise across all major Class 6-8 platforms.
All Class 6-8 Brands Serviced
Freightliner, Kenworth, Peterbilt, International, Mack, Volvo, Western Star, Hino, and Isuzu. We have the diagnostic tools, software, and parts inventory for every major commercial vehicle manufacturer.
30+ Years Serving Charlotte Fleets
Since 1995, CTR has been the trusted heavy-duty repair partner for Charlotte-area fleets. Our Concord facility is just 15 minutes from Uptown Charlotte via I-85, making us a convenient choice for metro-area operations.
Fast Turnaround — Minimize Downtime
We understand that every hour a truck is down costs your operation money. Our efficient diagnosis process, extensive parts inventory, and experienced team get your trucks back on the road as quickly as possible.
Fleet Account Programs
Dedicated fleet account management with customized PM schedules, priority service, consolidated billing, and detailed maintenance reporting. We work with your dispatch to minimize operational disruption.
3-Year / 36,000-Mile Warranty
Every repair at CTR is backed by our industry-leading warranty. We stand behind our work because we use quality parts and our technicians do the job right the first time.
Heavy-Duty Repair Services
44 specialized services covering every system on Class 6-8 commercial vehicles. From routine maintenance to complete engine overhauls, CTR has the expertise and equipment to handle it all.
Complete diesel engine diagnostics, repair, and overhaul for all major engine platforms — Cummins, Detroit, PACCAR, Volvo, Navistar, and more. From injector replacement to in-frame and out-of-frame overhauls.
Complete engine diagnostics with OEM-level scan tools and software
In-frame and out-of-frame engine overhauls
Injector testing, calibration, and replacement (HEUI, common rail, unit injector)
Turbocharger diagnostics, rebuild, and VGT actuator calibration
Head gasket replacement and cylinder head reconditioning
Oil and coolant leak diagnosis and repair
Manual and automatic transmission service for all commercial platforms — Eaton Fuller, Allison, ZF, and Volvo I-Shift. From fluid service to complete rebuilds.
Eaton Fuller manual transmission rebuild and repair
Allison automatic transmission diagnostics and overhaul
ZF and Volvo I-Shift automated manual transmission service
Clutch replacement — 14" and 15.5" clutch assemblies, flywheel resurfacing
Transmission cooler service and line repair
Driveshaft repair, U-joint replacement, and carrier bearing service
Complete brake system service for Class 6-8 vehicles. Air brakes, hydraulic brakes, ABS diagnostics, and DOT-compliant brake inspections. Brakes are the #1 DOT violation — we keep your fleet compliant.
Air brake system diagnosis — compressors, valves, dryers, chambers, and lines
Drum brake reline — shoes, drums, hardware, S-cam bushings, slack adjusters
Disc brake pad and rotor replacement with caliper service
ABS diagnosis and repair — sensors, modulators, ECU, wiring
Spring brake chamber replacement and parking brake service
Brake stroke measurement and adjustment to FMCSA standards
Modern commercial vehicles rely on complex electrical systems and multiplexed wiring. Our technicians diagnose and repair electrical issues across all platforms using OEM-level diagnostic tools.
ECM/PCM diagnostics and programming for all major engine platforms
Wiring harness repair, connector replacement, and circuit tracing
Alternator and starter motor testing, rebuild, and replacement
Battery testing, replacement, and cable service
Lighting system repair — headlights, marker lights, DOT-required lighting
Multiplexing system diagnostics (body controller, chassis modules)
Suspension and steering components take a beating on commercial vehicles. We service air ride, leaf spring, and walking beam suspension systems, plus complete steering system repair.
Air ride suspension — bags, leveling valves, height control, ride height adjustment
Leaf spring replacement, re-arching, and U-bolt service
Shock absorber replacement for improved ride quality and tire wear
Power steering gear box rebuild and replacement
Drag link, tie rod, and king pin replacement
Steer axle and drive axle alignment
Diesel engines generate tremendous heat. A properly functioning cooling system is critical to engine longevity. We diagnose and repair all cooling system components.
Radiator repair, re-core, and replacement
Water pump replacement and belt service
Thermostat diagnosis and replacement
Coolant flush, pressure testing, and leak diagnosis
Charge air cooler (CAC) inspection and replacement
Fan clutch and fan shroud service
EPA-compliant aftertreatment systems require specialized knowledge and tooling. CTR diagnoses and repairs DPF, DOC, SCR, DEF, and EGR systems on all platforms.
DPF & aftertreatment repair (derate recovery, forced regen, sensor replacement)
DOC (diesel oxidation catalyst) diagnosis and replacement
SCR catalyst and DEF injector service
DEF system repair — pump, tank heater, quality sensor, dosing valve
EGR valve and EGR cooler diagnosis and replacement
Exhaust manifold repair and turbo-back exhaust service
Hydraulic systems power dump bodies, liftgates, PTO-driven equipment, and more. We diagnose and repair hydraulic circuits on all commercial vehicle applications.
Hydraulic pump diagnosis, rebuild, and replacement
Hydraulic cylinder repair and seal replacement
Control valve diagnosis and replacement
Hydraulic hose fabrication and replacement
PTO (power take-off) installation, repair, and clutch pack service
Hydraulic fluid flush and contamination analysis
CTR performs federal annual DOT inspections and helps fleets maintain FMCSA compliance. A clean inspection record protects your CSA scores and insurance premiums.
Federal annual DOT inspections (FMCSA Appendix G)
Pre-trip and post-trip inspection support
CVSA Level I through Level V inspection preparation
CSA score review and violation remediation guidance
Out-of-service repair and re-inspection
Inspection documentation and record keeping
Scheduled maintenance is the most cost-effective way to keep your fleet running. CTR offers customized PM programs tailored to your fleet size, duty cycle, and operational requirements.
PM-A, PM-B, PM-C scheduled service intervals
Oil and filter service with oil analysis reporting
Multi-point inspection at every service visit
Brake measurement and adjustment tracking
Coolant and fluid condition monitoring
Fleet maintenance reporting and cost-per-mile analysis
Brands We Service
CTR has the OEM-level diagnostic tools, software, and parts inventory for every major Class 6-8 commercial vehicle manufacturer. No matter what brand your fleet runs, we can service it.
Freightliner
Cascadia, M2, Columbia, Century, Classic
Kenworth
T680, T880, W900, T270, T370
Peterbilt
579, 389, 567, 348, 337
International
LT, RH, HV, HX, MV, CV
Mack
Anthem, Pinnacle, Granite, LR, MD
Volvo
VNL, VNR, VHD, VAH
Western Star
4700, 4900, 47X, 49X
Hino
L, XL series
Isuzu
FTR, FVR, F-Series
Fleet Services for Charlotte Operations
Whether you run 3 trucks or 50, CTR offers fleet programs designed to reduce your total cost of ownership, minimize unplanned downtime, and keep your CSA scores clean.
Scheduled Maintenance Programs
Customized PM schedules based on your fleet size, mileage, duty cycle, and manufacturer recommendations. We track every service interval and notify you when trucks are due.
Emergency Breakdown Response
When a truck goes down unexpectedly, CTR prioritizes emergency repairs to minimize your downtime. Same-day service on most common repairs with our extensive parts inventory.
Fleet Inspections & DOT Compliance
Annual DOT inspections, pre-trip support, and CSA score management. We help you maintain a clean compliance record that protects your operating authority and insurance rates.
Fleet Account Advantage: Fleet customers receive priority scheduling, consolidated billing, and detailed maintenance reporting. Contact us at (704) 786-0132 to set up your fleet account.
Typical Cost Reference
Heavy-duty repair costs vary based on vehicle type, engine platform, and scope of work. These ranges represent typical costs for common services. We provide detailed written estimates before starting any repair.
| Service | Typical Range |
|---|---|
| Oil & Filter Service | $250 – $450 |
| Brake Reline (Single Axle) | $600 – $1,200 |
| Complete Brake Overhaul (Tractor) | $3,000 – $6,000 |
| Clutch Replacement | $2,500 – $5,000 |
| Alternator Replacement | $400 – $900 |
| Starter Motor Replacement | $500 – $1,200 |
| DPF & Aftertreatment Repair | $300 – $3,500 |
| Turbocharger Rebuild | $1,500 – $3,500 |
| Water Pump Replacement | $600 – $1,200 |
| DOT Annual Inspection | $150 – $200 |
| Transmission Rebuild | $4,000 – $8,000 |
| In-Frame Engine Overhaul | $8,000 – $15,000 |
Transparent Pricing: Every repair begins with a thorough diagnosis and a detailed written estimate. You will know exactly what needs to be done, why, and what it will cost before we turn a wrench. No surprises, no unnecessary upsells.
Serving the Charlotte Metro & I-85 Corridor
CTR Heavy Duty is located at 2931 Armentrout Drive in Concord, NC — directly off I-85 at Exit 58. Our central location makes us accessible from anywhere in the Charlotte metro area, with most locations within a 20-30 minute drive.
Convenient I-85 Access: Our Concord location is just off I-85 Exit 58, making us easy to reach from Charlotte, Harrisburg, Kannapolis, Huntersville, and Mooresville. Many Charlotte-area fleet managers prefer our location because it avoids the congestion of the Charlotte metro core while still being just minutes away.
Frequently Asked Questions
CTR Heavy Duty is located at 2931 Armentrout Drive in Concord, NC — approximately 15 minutes northeast of Uptown Charlotte via I-85. We are directly off Exit 58, making us one of the most accessible heavy-duty repair facilities for Charlotte-area fleets. Many of our fleet customers operate out of Charlotte, Harrisburg, and the I-85 corridor and find our location more convenient than shops in the congested Charlotte metro core.
We service all Class 6 through Class 8 commercial vehicles — semi-trucks, tractor-trailers, dump trucks, box trucks, flatbeds, tankers, reefer units, buses, and specialty commercial vehicles. We work on all major brands including Freightliner, Kenworth, Peterbilt, International, Mack, Volvo, Western Star, Hino, and Isuzu. If it is a commercial vehicle with a diesel engine, we can diagnose and repair it.
Turnaround depends on the scope of work. Routine services like oil changes, brake adjustments, and DOT inspections are typically completed same-day. Brake relines, alternator and starter replacements, and most electrical repairs are usually same-day or next-day. Larger jobs like clutch replacements, transmission rebuilds, and engine overhauls typically take 2-5 business days depending on parts availability and the complexity of the repair. We communicate timelines clearly before starting work and keep you updated throughout the process.
Yes. CTR offers dedicated fleet account programs for operations of all sizes — from owner-operators with 2-3 trucks to large fleets with 50+ units. Fleet accounts include customized PM schedules, priority service scheduling, consolidated monthly billing, detailed maintenance reporting, and a dedicated account contact. We work with your dispatch team to schedule maintenance during planned downtime windows whenever possible.
Yes. CTR performs federal annual DOT inspections in compliance with FMCSA Appendix G criteria. We inspect all required systems — brakes, steering, suspension, frame, lighting, tires, wheels, exhaust, coupling devices, and more. If any deficiencies are found during inspection, we can perform the necessary repairs on-site and re-inspect the vehicle. We also help fleets prepare for CVSA roadside inspections and manage CSA score improvement.
We service all major diesel engine platforms: Cummins (ISX, ISB, ISL, X15, B6.7, L9), Detroit Diesel (DD13, DD15, DD16, Series 60), PACCAR (MX-13, MX-11), Volvo (D11, D13, D16), Navistar/International (A26, N13), and Hino/Isuzu engines. Our technicians have factory-level training and diagnostic software for each platform.
CTR offers mobile truck repair for certain services within the Charlotte metro area. Mobile service is available for breakdowns, emergency repairs, and situations where the truck cannot be safely driven to our shop. Contact us at (704) 786-0132 to discuss your situation — we will determine whether mobile service or a tow to our facility is the best option for your repair.
CTR Heavy Duty is open Monday through Friday, 7:00 AM to 5:00 PM. To schedule service, call us at (704) 786-0132. For fleet accounts, you can also coordinate directly with your dedicated account contact. We recommend scheduling routine maintenance in advance, but we accommodate emergency and same-day repairs whenever possible.
Our labor rates are competitive with Charlotte-area heavy-duty shops, and in many cases lower due to our Concord location. More importantly, we focus on accurate diagnosis — we do not pad estimates with unnecessary work, and we do not replace parts that do not need replacing. Many fleet managers find that our combination of fair pricing, fast turnaround, and quality work results in a lower total cost of ownership compared to shops that charge less per hour but take longer or miss underlying issues.
CTR works with most major extended service contract providers and can coordinate warranty claims on your behalf. For manufacturer warranty work, we recommend contacting us first to discuss the specific situation — in many cases we can perform the diagnosis and repair more quickly than a dealer, and we will help you navigate the warranty claim process.
Keep Your Fleet Running
Charlotte-area fleets trust CTR for expert heavy-duty repair, fast turnaround, and transparent pricing. Contact us today to schedule service or set up a fleet account.