Diesel Repair in Moses Lake
From diesel engine repairs to suspension, 509 Roadside in Moses Lake, WA, handles it all. We repair trucks, trailers, RVs, buses, and heavy equipment—fast, reliable, and always professional.

Our Repairs
At 509 Roadside, we specialize in comprehensive diesel and commercial vehicle repair. Whether you’re dealing with engine trouble, axle issues, or air system leaks, our techs are equipped to handle every system on your rig. We work on all makes and models of trucks, trailers, RVs, buses, automobiles, and heavy equipment—on the road or in our shop.
FAQs
What Types of Vehicles Do You Repair?
We service semi trucks, trailers, RVs, buses, light-duty pickups, automobiles, and heavy equipment. No matter what you drive, if it runs diesel or supports commercial work—we can fix it.
Do You Handle Mobile Repairs?
Yes, we offer mobile repair for most systems including diagnostics, electrical, brakes, air lines, and more. We also provide scheduled on-site repairs during regular weekday service hours.
What Engine Repairs Do You Offer?
We provide diagnostics, rebuilds, overhauls, oil leak repair, fuel system service, and more. Whether it's performance loss or a major failure, our team can restore your diesel engine.
Can You Fix Electrical Problems?
Absolutely. We handle wiring issues, starter failures, battery problems, alternators, and full electrical diagnostics. If your truck won’t start or you’re chasing electrical faults, we’ll track it down.
Do You Service Suspensions?
Yes. We repair leaf springs, shocks, air ride systems, and bushings. If your ride feels off or your trailer sags under load, we’ll inspect and fix the issue fast.
Do You Handle DOT-Related Repairs?
We do. If your truck failed a DOT inspection or needs repair to pass one, we’ll take care of the lights, brakes, tires, suspension, and anything else needed for compliance.
Do You Repair Cooling Systems?
Yes. We handle coolant leaks, radiator replacements, thermostat service, water pumps, and more. If your truck is running hot, we’ll get it cooled down fast.
Contact Us
Need reliable truck or trailer repair? Call 509-855-4932 today to schedule service. Whether you're on the road or in the yard, 509 Roadside will get you fixed up and rolling again.
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!
Totally helped me out of a jam. Last Wednesday 2/26/25 late in the day, my 2011 Isuzu Blue Bumper Box truck had a red check engine light go off. You guys were my angels. Thanks so much for clearing the code and getting my truck back on the road. It made it all the way to Spokane and back to Seattle.
Came in for an issue, fixed extremely quick. The most honest mechanics ive seen in a long time. Will definitely be coming back for any future issues!
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!
509 Roadside put in a left foot pedal, brand new brakes, and rotors and rear drums on my car. Also checked all fluids and cleaned engine bay. They were fast, friendly, and went way above and beyond for me. I would give these guys 20 stars if I could!
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.
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.
Joseph helped me out when my car couldn’t shift gears coming from Spokane, going back to Western WA. It was 99 degrees out and he came from his house to help me. He was calm, knowledgeable, communicated well, and honest. He even called me when I got back home to make sure I made it and gave me some car tips. There aren’t too many people out there like him. I believe in karma, and Joseph deserves all the best karma his way.
509 Roadside saved my day. I locked my keys in my trunk and called insurance to have them help connect me with someone to get into my car. I was waiting for the maintenance truck to come, 2.5 hours after my call. 509 Roadside was just driving by and helped. Super nice guy!
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!