About Diamond Fleet Service

Diamond Fleet Service, located in Myerstown, Pennsylvania, is a family-owned diesel truck repair shop that specializes in providing a wide range of diesel repair services for different types of vehicles including light-duty trucks, medium-duty trucks, heavy-duty trucks, and fleets. Our experienced diesel mechanics have over 35 years of combined experience in the diesel industry, ensuring that your vehicles are serviced to the highest quality standards.

Team member working on semi truck at Diamond Fleet Service

Our motto is simple: "By fleet owners, for fleet owners."

We take ownership in our work and always strive to exceed our customers' expectations. We are committed to providing top-notch service for every truck that enters our shop, and we treat our customers' fleets as if they were one of our own.

At Diamond Fleet Service, we specialize in general diesel services such as engine repair, brake service, suspension service, oil changes, and fluid maintenance. Our goal is to ensure that your diesel trucks are always running at their optimal performance, no matter the shape your fleet is in. We also provide mobile service for your convenience, and our technicians are always ready to go the extra mile to make sure your truck is up and running in no time.

Team of mechanic at Diamond Fleet Service LLC

Our Highly Trained Technicians will take care of your Fleet.

We believe that preventive maintenance is crucial to extending the life of your vehicles and avoiding costly repairs. That’s why we offer a comprehensive preventive maintenance program that includes brake inspections, oil changes, fluid maintenance, and more. Our technicians are trained to identify potential issues before they become major problems, and we always keep our customers in the loop to ensure that they are satisfied with the work we provide.

Mechanic at Diamond Fleet Service LLC

As a family business, we take ownership in our work and strive to build long-term relationships with our customers.

Our reputation for quality service, attention to detail, and customer satisfaction has made us the go-to diesel service provider in Myerstown, Pennsylvania, and the surrounding areas. So if you live in the city or you’re just passing through, give us a call!


Our Diesel Mechanic Services

The diesel mechanic team at Diamond Fleet Service provides trusted truck repair and maintenance services from our shop in Myerstown, PA. With a long history of keeping commercial fleet healthy and on the road for your business, we have earned Pennsylvania's trust. Get in touch with our team today for more information and to request service.

Diesel mechanic performing DOT Inspection on semi truck in Myerstown, PA

DOT Inspection & PA Inspections

Thinking about scheduling your next DOT inspection service? At Diamond Fleet Service in Myerstown, Pennsylvania, we offer comprehensive federal and state DOT inspections for commercial fleets, including light-, medium-, and heavy-duty trucks.
Diesel mechanic performing fleet maintenance services in Myerstown, PA

Fleet Maintenance

At Diamond Fleet Service in Myerstown, Pennsylvania, we live and breathe diesel fleet maintenance and management—it’s in our motto. Whether you need preventive maintenance or quick repairs, our technicians can do it all.
Diesel mechanic performing general diesel repairs on semi truck in Myerstown, PA

General Diesel Repair

Nothing can quite ruin your day like a “check engine” light or screeching brakes. At Diamond Fleet Service in Myerstown, Pennsylvania, we’re masters of all things diesel. Our technicians, with 35 years of combined experience, can fix or service anything, from a quick oil change to brake repair.
Diesel mechanic performing preventive maintenance service on semi truck in Myerstown, PA

Preventive Maintenance

If there’s anything better than getting fast and high-quality repairs for your fleet, it’s preventing it from getting repaired altogether. Our crew at Diamond Fleet Service in Myerstown, Pennsylvania, is dedicated to helping you avoid unexpected breakdowns.

What Our Customers Say About Our Shop

Check out Diamond Fleet Service's review page for honest and informative reviews from satisfied customers. Trust us to keep your trucks running smoothly.

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Contact Diamond Fleet Service

Don't hesitate to get in touch with us at Diamond Fleet Service. Our friendly and knowledgeable team is always here to assist you with all of your heavy-duty truck fleet repair and maintenance needs. Contact us today to schedule an appointment or to learn more about our services.

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633 West Lincoln Ave, Myerstown, PA, 17067
633 West Lincoln Ave, Myerstown, PA, 17067

Monday to Friday - 7:30 am - 4:00 pm
Saturday: Appointment Only
Sunday: Closed

+1 (717) 929-0379
© 2023 Diamond Fleet Service LLC. All rights reserved.
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