Coolant leaking or engine running hot? Don’t risk an expensive breakdown. We repair radiators, water pumps, thermostats, and more to keep your truck’s cooling system running strong.

Coolant System Repair in Moses Lake, WA
Your engine generates intense heat—and without a working cooling system, that heat can destroy vital components fast. We offer expert cooling system repair for trucks, trailers, RVs, buses, and heavy equipment. Whether you’re dealing with a slow leak or an overheating engine, we’ll find the fix.
Common coolant system repairs include:
- Semi truck radiator repair
- Water pump and thermostat replacement
- Coolant flush and pressure testing
- Hose and coolant line replacement
- Fan clutch and heater core repair
What Makes Us Different
509 Roadside isn’t your average diesel shop. We’re equipped to handle a wide variety of heavy-duty vehicles, whether it's a long-haul truck, a charter bus, or heavy equipment. Every coolant system repair is done with precision and speed to minimize 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 Can I Get Coolant System Repair?
Call 509-855-4932 now to book a service appointment. Whether it’s a leaking radiator or a bad thermostat, we’ll get your cooling system working reliably again.
Can I Still Drive With a Coolant Problem?
Driving with a coolant leak or failing component is risky. Without proper cooling, engine temperatures can spike quickly, leading to major damage. It's best to stop and have the system inspected as soon as possible.
What Are the Common Signs of a Malfunctioning Cooling System?
Look out for overheating, coolant leaks, steam from the hood, or fluctuating temperature readings. You might also notice a drop in heater performance or a sweet smell under the hood—both signs of trouble.
What Areas Do You Serve For Coolant System 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 Coolant System Repair Now: Call 509-855-4932!
Overheating problems don’t fix themselves. Call 509-855-4932 to schedule your radiator or coolant system repair today. We'll get your truck back to peak performance—fast.
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!
Had my starter go out they had a new on hand and I was back on the road right at 2 hours, great job 509.
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!!
My window wasn’t working for the past 2 years and I was looking for a good mechanic for a while but they were too pricey. But 509 roadside did not disappoint! They were able to fix my window at a great price! Definitely recommend!! I can finally go through the drive through!
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!
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.
Our resident transport bus broke down on the way back from Wenatchee. 509 Roadside made arrangements to get the vehicle towed to the shop and had it fixed the very next day. Great service!
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!
I started using 509 Roadside in 2023 and I can’t say enough good things about Joe and his team. They provide prompt and professional repair services for my equipment at very reasonable rates. Since my office is based outside of the region where 509 Roadside is located, they are a strategic resource for my equipment service needs.
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!