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5% Off: Military, Veterans, and First Responders 1-Year/15,000-Mile Warranty | All Work Guaranteed In Writing
Locations Hub
Marietta, GA
Our Diesel Partner
We proudly work alongside trusted diesel parts and service partners to ensure every repair meets the highest standards. By using quality components and industry-proven solutions, we keep your truck running stronger, longer, and more reliably on the road.
North Atlanta's Diesel Specialist: Trusted by Marietta Truck Owners Since 2011
Diesel Truck Repair in Marietta, GA
Marietta is the commercial and residential center of Cobb County, a city of over 60,000 sitting at the convergence of I-75 and I-575, with a large contractor community, a strong military presence near Dobbins Air Reserve Base, and tens of thousands of hardworking diesel truck owners who need a mechanic they can rely on. One that knows diesel specifically, diagnoses it correctly, and stands behind every repair in writing.
Allatoona Diesel is located just 20 minutes north of Marietta at 4131 South Main Street in Acworth, a direct shot up I-75. Since 2011, we have been the diesel truck repair specialist for the greater North Atlanta area. Family-owned. Light-duty diesel focused. Every repair backed by a 1-year / 15,000-mile written warranty. If you drive a Cummins, Powerstroke, or Duramax anywhere in or around Marietta, this is the shop built for your truck.
Locations
Marietta, GA
Our Diesel Partner
We proudly work alongside trusted diesel parts and service partners to ensure every repair meets the highest standards. By using quality components and industry-proven solutions, we keep your truck running stronger, longer, and more reliably on the road.
North Atlanta's Diesel Specialist: Trusted by Marietta Truck Owners Since 2011
Diesel Truck Repair in Marietta, GA
Marietta is the commercial and residential center of Cobb County, a city of over 60,000 sitting at the convergence of I-75 and I-575, with a large contractor community, a strong military presence near Dobbins Air Reserve Base, and tens of thousands of hardworking diesel truck owners who need a mechanic they can rely on. One that knows diesel specifically, diagnoses it correctly, and stands behind every repair in writing.
Allatoona Diesel is located just 20 minutes north of Marietta at 4131 South Main Street in Acworth, a direct shot up I-75. Since 2011, we have been the diesel truck repair specialist for the greater North Atlanta area. Family-owned. Light-duty diesel focused. Every repair backed by a 1-year / 15,000-mile written warranty. If you drive a Cummins, Powerstroke, or Duramax anywhere in or around Marietta, this is the shop built for your truck.
Why Marietta Diesel Truck Owners
Choose Allatoona Diesel
Marietta has more auto repair shops per square mile than almost anywhere in the metro. What it does not have is a shop that works exclusively on light-duty diesel truck repair: the Powerstrokes, Duramaxes, and Cummins engines that Cobb County’s contractors, commuters, veterans, and working families depend on every day. That focus is the Allatoona Diesel difference.
General shops use general tools and general knowledge. Diesel engines are not general. They require dedicated diagnostic equipment, platform-specific expertise, and technicians who understand the fuel systems, emissions architecture, and mechanical characteristics unique to each diesel platform. That is what you get at Allatoona Diesel, and that is why Marietta drivers make the 20-minute drive north rather than settling for the shop around the corner.
Light-duty diesel specialists
Every technician, every tool, every process built around diesel trucks and nothing else.
15 plus years of experience
Diagnosing and repairing North Atlanta diesels since 2011. We have seen every failure mode.
Written 1-year / 15,000-mile warranty
Every repair guaranteed in writing. Parts and workmanship clearly stated. No fine print.
Accurate diagnosis first
Professional scan tools and experienced technicians. Root cause found before any repair is recommended.
5% off for military and first responders
Active military, veterans, and first responders receive 5% off every repair.
Family-owned since 2011
Not a chain. A family business that treats every truck and every customer with genuine care.
Diesel Platforms We Service in Marietta
Cobb County’s diesel truck owners drive all three major light-duty platforms. We specialize in all of them, with deep familiarity in the specific failure modes, service intervals, and repair requirements each one demands.
Ford Powerstroke
- 6.7L Powerstroke
- 6.4L Powerstroke
- 6.0L Powerstroke
- 7.3L Powerstroke
- CP4 to DCR conversion
- EGR and DPF expertise
GM Duramax
- 6.6L LML and L5P
- 6.6L LBZ and LMM
- 6.6L LB7 and LLY
- Fuel injection systems
- Emissions system service
- Cooling and transmission
Ram Cummins
- 6.7L Cummins
- 5.9L Cummins (12v and 24v)
- Fuel system repair
- EGR and DPF service
- Lift pump systems
- Engine and axle repair
Full-Service Diesel Repair for Marietta, GA Trucks
Thirteen services. One specialist shop. Whether you are dealing with a flashing check engine light on the way to a Marietta job site, a transmission service that is overdue, or a Powerstroke that has been throwing EGR codes for weeks, we handle all of it under one roof with the same written warranty on every job.
Engine Repair
Injector replacement, head gaskets, oil leaks, cooling system failures, and performance diagnostics. We identify the root cause before any repair begins.
Truck diagnostics
Professional-grade diesel scan tools and experienced technicians. We read the complete data picture so repairs address the root cause, not just the code.
EGR and DPF service
Emissions system cleaning, repair, and diagnostics. One of the most common needs for Cobb County diesel trucks and one of the most frequently misdiagnosed by general shops.
Axle repair
Precision axle and driveline repair for trucks carrying payloads and towing trailers across Cobb County roads.
Alignment service
Corrects pull, wander, and uneven tire wear. Essential for trucks that tow regularly or run heavily loaded.
Brake service
Full brake inspections, pad and rotor replacement, and complete brake system repairs using quality parts.
Suspension service
Shocks, struts, springs, and steering components restored to spec, protecting ride quality, handling, and safety.
Transmission service
Fluid changes, filter replacement, and thorough inspections. Regular service prevents the drivetrain failures that take trucks off the road for weeks.
Oil and fluid changes
Engine oil, fuel filters, coolant, and all essential fluid maintenance to protect your diesel for the long haul.
Coolant service
System inspection, leak detection, flush, and refill. Georgia heat is demanding on diesel cooling systems, especially under load.
Driveline service
Comprehensive driveline inspection and repair to ensure clean, efficient power delivery from engine to wheels.
Lube service
Engine oil, filters, and all key lubrication points serviced on schedule. The simplest investment you can make in your diesel’s longevity.
Automotive HVAC
Heating and A/C diagnosis and repair. Your truck cab should be comfortable year-round.
Ford 6.7L Powerstroke: CP4 to DCR Pump Conversion
The factory CP4 injection pump on the 6.7L Powerstroke is one of the most costly failure risks in the light-duty diesel market. When it fails, it sends metal debris through the entire high-pressure fuel system: injectors, rails, lines, and all. The resulting repair can exceed $10,000. We offer a preventative CP4-to-DCR pump conversion that eliminates this risk entirely. For Marietta Powerstroke owners who tow, haul, or put heavy miles on their 6.7L, this is one of the most cost-effective upgrades available.
Fleet diesel service for Marietta businesses
If your Marietta-area business operates more than one diesel truck, downtime is a direct cost. Allatoona Diesel offers fleet service options with consistent maintenance scheduling, reliable turnaround, and a single-shop relationship that keeps your fleet history centralized. Contractors, HVAC companies, landscaping operations, and logistics businesses across Cobb County trust us to keep their fleets running. Contact us to discuss fleet account options.
Serving Marietta and All of Cobb County
Marietta sits at the center of one of the most commercially active counties in Georgia. The I-75 and I-575 interchange, Dobbins Air Reserve Base, the Lockheed Martin facility, and the contractor and service industry base supporting Cobb County’s development make Marietta a city where diesel trucks are everywhere and where finding a specialist who actually knows these engines matters.
Allatoona Diesel is 20 minutes north of Marietta on I-75, Exit 278 at Glade Road in Acworth. For most Marietta diesel owners, that is a straight shot with minimal traffic. We are appointment-based, which means your truck gets a dedicated slot, a dedicated technician, and dedicated focus from the moment it arrives. No walk-in queue. No competing with the car ahead of you.
We regularly serve customers from Marietta’s east and west sides, from Smyrna and Vinings, from East Cobb and West Cobb, and from the communities south of Kennesaw who find the drive to Acworth easy and the diesel expertise worth it. Marietta is our largest single source of customer traffic, and we have earned that by consistently delivering accurate work with a written guarantee.
Location
4131 South Main Street
Acworth, GA 30101
Hours
Mon to Thur: 7:30 AM to 5:30 PM
Fri to Sun: Closed
Military, veteran, and first responder discount: 5% off all repairs
Active duty military, veterans, and all first responders receive 5% off every repair at Allatoona Diesel. Mention it when you book. We are proud to serve the Dobbins ARB community and Cobb County’s first responders.
Serving Dobbins ARB Personnel and Veterans in Marietta
Marietta is home to Dobbins Air Reserve Base, and the surrounding communities have a significant active military and veteran population. Allatoona Diesel is proud to offer a 5% discount on all repairs for active duty military, veterans, and first responders, a small recognition of the service and sacrifice that the Dobbins community and Cobb County’s first responders represent.
Mention your military or first responder status when you schedule your appointment. The discount applies to all services and repairs. Cannot be combined with other offers or promotions.
Common Questions from Marietta Diesel Truck Owners
Approximately 20 minutes north on I-75. Take Exit 278 (Glade Road, Acworth) and head north on South Main Street. From most parts of Marietta, it is a straightforward drive with no complicated routing.
Because the shops in Marietta are general repair shops. Diesel trucks, Powerstroke, Duramax, and Cummins, require specific diagnostic equipment, platform-specific expertise, and technicians who work on these engines every day. General shops may handle an oil change or read a code, but for EGR system repairs, high-pressure fuel system issues, diesel-specific engine work, or accurate diagnosis of complex fault codes, specialization makes a significant difference in both accuracy and repair quality.
Yes. We work with contractors, service businesses, and commercial operators from across Cobb County who run multiple diesel trucks. Fleet service options include consistent scheduling, reliable turnaround, and centralized service history. Contact us to discuss what a fleet account arrangement looks like for your operation.
Light-duty diesel pickups: Ford Powerstroke (6.7L, 6.4L, 6.0L, 7.3L), Chevy/GMC Duramax (LB7 through L5P), and Ram Cummins (5.9L and 6.7L). These three platforms make up the vast majority of Marietta’s diesel truck population. Call (678) 374-3518 to confirm your specific model.
Yes, and it should not be ignored. EGR and DPF faults are the most commonly mishandled diesel issues we see, often because general shops address the code without addressing the underlying cause. Left unattended, emissions system faults lead to turbocharger damage, injector fouling, and engine oil contamination. Marietta’s stop-and-go traffic is particularly hard on these systems. Bring it in and let us diagnose it properly.
Every repair at Allatoona Diesel is backed by a 1-year / 15,000-mile warranty covering parts and workmanship, given to you in writing at the time of service. If a repair we performed fails within that period under normal use, we make it right. No loopholes.
Appointments are required and strongly recommended. We schedule specifically to give your truck dedicated technician time. Call (678) 374-3518 or email service@allatoonadiesel.com. Monday to Thursday, 7:30 AM to 5:30 PM.
Serving Marietta, Cobb County, and the Broader North Atlanta Region
Allatoona Diesel serves diesel truck owners across the entire North Atlanta metro corridor. In addition to Marietta, our regular customer base includes:
- Acworth, GA: our home base on South Main Street
- Kennesaw, GA: approximately 10 minutes north via I-75
- Woodstock, GA: approximately 25 minutes via I-575
- Cartersville, GA: approximately 30 minutes north via I-75
- Smyrna, GA: approximately 15 minutes north via I-75
- Powder Springs, GA: approximately 25 minutes via Hwy 92
- Dallas, GA: approximately 30 minutes via Hwy 120 and Hwy 92
- Roswell, GA: approximately 30 minutes via I-575 and Hwy 92
Ready to book?
Call (678) 374-3518 or email service@allatoonadiesel.com. Open Monday to Thursday, 7:30 AM to 5:30 PM. Located at 4131 South Main Street, Acworth, GA, 20 minutes north of Marietta on I-75, Exit 278.
Schedule Your Marietta Diesel Repair Today
Marietta diesel truck owners have two options: a general shop close by, or a diesel specialist 20 minutes up I-75 who does this and only this, has done it for over 15 years, and puts a written warranty on every repair. Allatoona Diesel has been earning the drive from Marietta since 2011. Call us today and let us take care of your truck the right way.
