Since 1997, Smithey Fleet Services has been a trusted, family-owned provider of diesel repair, RV repair, trailer repair, and fleet maintenance solutions. As a certified Class A diesel repair shop, we proudly serve commercial fleets, recreational vehicles (RVs), and trailers, meeting the needs of industries like construction, manufacturing, logistics, and transportation.

Our experienced technicians specialize in diesel engine repairs, advanced diagnostics, trailer maintenance, and preventative maintenance programs tailored to maximize performance and reliability. From truck repair and RV maintenance to trailer diagnostics and fleet servicing, we are dedicated to keeping your vehicles and equipment on the road and operating efficiently.

At Smithey Fleet Services, we combine decades of expertise with exceptional customer service to provide comprehensive solutions for diesel repair, RV service, and trailer repair. Trust us to minimize downtime, improve reliability, and keep your business moving forward.

At Smithey Fleet Services, Service is Our Business

Diesel Repair Services

Electrical Services and Repairs

Smithey Fleet Services provides the best electrical service in Oklahoma City, hands down.

Diesel Engine Service

When that check engine light comes on, it’s hard not to feel annoyed or even worried.

Heating & Air Conditioner Repair

For the best cooling and heating repair service in Oklahoma City, trust Smithey Fleet Services.

Preventative Maintenance Service

It’s a fact: regular, quality maintenance extends the life of your vehicle.

DPF / SCR Services and Replacement

If you’re concerned about passing emissions or you already know your exhaust system isn’t what it should be, visit Smithey Fleet Services in Oklahoma City.

24 / 7 Roadside Assistance

In the fast-paced world of trucking, time is money. Unexpected breakdowns can not only derail schedules but also result in significant financial losses.

Top-Notch Diesel Repair Services

With over 30 years of experience in fleet management and diesel mechanics, we are fully equipped to handle everything from routine maintenance to complex engine overhauls. Our skilled technicians utilize state-of-the-art tools and technology to minimize downtime and get your vehicles back on the road as quickly as possible. Whether you’re managing a single vehicle or a large fleet, we are committed to providing reliable, on-time service that meets your needs.

Why Choose Smithey Fleet Services

For years Smithey Fleet Services has been there for the people of Oklahoma City. We love what we do, and that basic fact fuels our business. We are dedicated to our customers, and that’s why they stick with us—the best diesel repair Oklahoma City has to offer. As a family-owned company, we take great pride in offering personal, reliable service you can trust. For fast, professional, and dependable service, call us today.

Smithey Fleet Services

What sets Smithey Fleet Services apart from all of the others in Oklahoma City, OK?

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Quality Service

We use the latest diagnostic equipment and high-quality parts to ensure that your vehicle is repaired to the highest standards.

Experienced and Certified Technicians

Our technicians are highly skilled and certified professionals with years of experience in the diesel repair industry. They have the expertise to diagnose and repair any problem your vehicle may have.

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Customer Satisfaction

Our goal is to exceed your expectations and ensure your complete satisfaction with every visit.

Diesel Repair Estimate

We are ready to get to the heart of any problems with your vehicle’s performance. Stop by for a thorough truck repair estimate that includes a detailed inspection, and cost and timeframe details. We offer some of the best rates in the business. We take pride in our diesel repair estimates in Oklahoma City, so stop by and find out why! Schedule an appointment today so we can earn your trust and your business.

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Expert Transmission Services

At Smithey Fleet Services, we specialize in transmission services. Our seasoned technicians ensure optimal performance with expert diagnostics, refinement, and customized transmission maintenance. Elevate your drive with confidence, where every shift is effortless.