Mobile Truck Engine Repair, Overhaul, and Conversion in Moses Lake, WA

Engine running rough? Need a full rebuild? We handle everything from diagnostics to complete engine overhauls and conversions—keeping your rig reliable and road-ready in central Washington.

Truck engine

Engine Repair in Moses Lake, WA

At 509 Roadside, we provide complete diesel engine diagnostics, repairs, overhauls, and conversions for trucks, trailers, RVs, buses, and heavy equipment. Whether you’re chasing a check engine light or planning a full rebuild, we’ve got the tools and expertise.

Common engine services include:

  • Semi truck engine repair
  • Full engine overhauls and rebuilds
  • Engine conversions and repowers
  • Head gasket, injector, and turbo repairs
  • Engine diagnostics and performance troubleshooting

What Makes Us Different

509 Roadside isn’t your average diesel shop. We’re equipped to service a wide variety of diesel-powered vehicles, and every engine repair or overhaul is done with precision to extend lifespan and reduce downtime.

  • In-shop service for trucks, RVs, trailers, buses, and fleets
  • Roadside assistance available during business hours
  • Honest timelines and transparent estimates

Need us on the road? Our mobile service team can assist during weekdays for breakdowns and scheduled on-site repairs. If you’re stuck and need help, 509 Roadside has you covered with 24/7 roadside assistance.

FAQs

How Do I Know If My Diesel Engine Needs an Overhaul?

If you’re experiencing excessive oil consumption, loss of power, hard starts, or blue smoke from the exhaust, it may be time for an engine overhaul. Proper diagnostics can confirm the condition.

How Can I Get in Touch?

Call 509-855-4932 to book your engine inspection or repair. We’ll help you decide whether repair, overhaul, or conversion is the best path forward for your truck or equipment.

What’s the Difference Between Engine Repair and Conversion?

Engine repair restores or replaces failing parts; a conversion involves swapping your engine for a new or different one—often for power, emissions, or reliability upgrades. Both depend on your goals and truck specs.

What Areas Do You Serve For Engine Repair?

We’re located at 11969 Debonair Street Northeast, Moses Lake, WA. We also proudly serve Spokane, WA; Kennewick, WA; Pasco, WA; Richland, WA; Yakima, WA; Wenatchee, WA; and Ellensburg, WA.

Schedule Your Engine Repair Now: Call 509-855-4932!

Whether it’s a simple repair or a full overhaul, call 509-855-4932 to schedule your engine service. We’ll get your engine running smooth, strong, and ready for the miles ahead.

What They're
Saying About Us

See why our customers consider 509 Roadside their go-to repair shop in Moses Lake, WA and the surrounding areas!

The customer service is excellent. They follow up and get the job done in a timely manner. I would recommend them for any type of mechanic work.

Dan N.

These guys got me in to their shop on short notice and found my electrical problem quickly. Can’t thank them enough! I will call them again if I need help in the area!!

Jon William

I am a hostler driver in our yard and anytime I need repairs, I call on 509 roadside, they haven't disappointed me at all. Very professional and courteous, I strongly recommend them.

David Phillips

I can’t speak highly enough of the service I received from 509 Roadside. My F150 was throwing multiple error codes and knocking, and eventually stranded me off I90 on a Sunday afternoon. Joseph with 509 was extremely patient and attentive, and helped walk me through problem solving over the phone, and I was able to get back on the road. (For a bit, but that’s the truck’s fault and not theirs!) Five stars, and I’d give more if I could.

Noah Dunn

Joseph and the 509 Roadside crew have been an invaluable part of keeping our fleet of delivery trucks running reliably here at Culligan, and it has been great having such a fantastic, local mechanic. He is consistent, thorough and always goes the extra mile to ensure our vehicles are in excellent condition. His attention to detail and commitment to quality work are evident in every job he takes on. Knowing we can count on him for fast, dependable service makes all the difference in keeping our operations on schedule. Very highly recommended for all your fleet needs!

Erin Walkup

These guys came out and did a roadside repair on my trailer and got me patched up in no time, their mechanic even followed me to my destination to make sure everything went smoothly. They went above and beyond, excellent and professional service. Thanks guys!

Kyle latvala

Had issue with semi shutting down due to coolant level issue, contacted 509 to assist and they were earlier then expected, very friendly and got me back on the road quickly and went beyond duty and even checked other things to prevent any other issues. Would call them first if I ever have a problem down road.

Michael Twedt

My car broke down and Joe found me stranded. He called a tow truck immediately and waited with me, I told him I thought my alternator burned out and he confirmed that was the case as soon as he walked up. He had the car fixed first thing in the morning and his rate was very reasonable. Joseph is a great person and an amazing mechanic. I highly recommend his services.

Devon M

Contact 509 Roadside

Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch!

Our Hours

Monday - Friday
8:00 AM - 12:00 PM
1:00 PM - 5:00 PM

24/7 Roadside Assistance

Speak to a Service Advisor now!