Coolant System Repair Services in Ronkonkoma, NY

Coolant System Repair

Every mile you push a hot-running engine is a gamble. With heavy-duty and medium-duty coolant system repair, you stay ahead of failures, cut repair costs, and make sure your trucks run cool, no matter how hot it is outside.

Truck Radiator Repair Shop in Ronkonkoma, NY

When your coolant system fails, it leads to overheating, which damages your engine, turbochargers, and transmission and can cause catastrophic engine failure. Whether it's a leaking radiator, worn water pump, or failing fan clutch, catching the issue early protects your fleet and bottom line.

At K&M Truck Repair, we know how crucial your engine cooling system is to day-to-day operations. We perform detailed diagnostics, pressure testing, and part-specific inspections to find and fix the issue.

We fix and replace:

  • Radiators and radiator hoses
  • Water pumps and thermostat housings
  • Fan clutches and belts
  • Coolant reservoirs and sensors
  • Cracked or clogged cooling lines

Experience the K&M Difference!

When it comes to your coolant system, you need reliable repairs done with care and expertise. Here’s what you get when you choose K&M Truck Repair for coolant system issues:

Dealer-Quality Repairs: High-grade parts and advanced tools deliver long-term fixes, not short-term band-aids.

Relentless Diagnostics: We investigate every angle until the actual cause is found. Your fleet doesn’t have time for guesswork.

Outstanding Customer Service: You’ll always know what’s happening, when, and what’s coming next. We respect your time and your business.

Contact Us About Heavy-Duty and Medium-Duty Radiator Repair Now: Call 631-331-0066!

Overheating won’t fix itself. Call 631-331-0066 now to book your heavy-duty or medium-duty radiator repair service and protect your engine from serious damage. Need quick help? Text our service team directly at 833-267-3752—we’ll get back to you fast.

FAQs

What areas do you serve for heavy-duty and medium-duty coolant system repair?

We are located at 3045 Veterans Memorial Highway, Ronkonkoma, NY 11779, and proudly serve all of Suffolk County and parts of Nassau County.

How do you detect where a coolant leak is coming from?

We use a combination of pressure testing, UV dye, and electronic detection tools to find hidden leaks in your radiator, hoses, fittings, and water pump.

What are the common signs of a malfunctioning cooling system?

Watch for engine overheating, low coolant levels, visible leaks, steam from under the hood, or the temperature gauge reading unusually high. These symptoms mean it’s time for a system check.

How can I get heavy-duty or medium-duty coolant system repair?

Protect your engine before you suffer catastrophic failure. Call 631-331-0066 or text 833-267-3752 to schedule your heavy-duty and medium-duty coolant system repair today!

Repairs

Medium & Heavy-Duty Diesel Repairs

At K&M Truck Repair, we take on diesel and automotive repairs with precision and pride. From brake and suspension issues to electrical problems, drivetrain faults, and cooling system failures, our experienced mechanics get to the root of the issue fast. We don’t guess; we diagnose, repair, and stand by the quality of our work. Whether it’s a one-time fix or a recurring problem that’s been missed elsewhere, we’ve got the tools and the team to get it done right!

Reviews

Customer Testimonials

"Was looking for a new shop to work on my truck and these guys were phenomenal. Took me right in, kept me informed throughout the process and expeditiously had me back up and running. Their knowledge and workmanship is incredible. If you're looking for a great shop to bring your truck to, look no further because these are your guys,"
- Daniel

"Thank you Angel, Rich, and the crew for always doing the right thing and being there when needed.  @MorelandHose appreciates dealing with local, family-owned small businesses like yourself."

David

"My truck lights were out and Peter and Ray saved the day. Peter showed me exactly what the issue was and had me going in no time. Real honest service!!!!  I will definitely go back."

3 Brothers Family Moving

"The truck repair shop is a lifesaver for truck owners. They provide swift and skilled service, ensuring your vehicle gets back on the road in no time. A dependable choice for truck maintenance and repairs."

Kenneth

"I Highly recommend this place and people. One of the most friendly and attentive shop I’ve ever work with. Thank you Alvin for your assistance, professionalism and kindness. Thank you Peter for your skills, time, knowledge and honesty fixing my truck. You have a customer for life."

Dariusz

"This place is awesome! They got me in right away and fixed the tires on my kayak trailer. The entire staff was kind and courteous. I would highly recommend!!!"

Karen

"This company is extremely reliable! Hard workers and they go the extra mile for you. I am completely satisfied and in awe of how fast they got to me and to work. 100% recommend."

Jonathan

"Professional, friendly, and knowledgeable.  These people go above and beyond to help you fix the problem.  We had several issues with our truck (electrical, brakes, airleak).  The owner, Peter, checked out the truck and fixed it quickly!  He and his staff are extremely helpful and friendly.   These people treat you right and know their stuff!"

Lady Trucker

"Air compressor went out on my 2007 Peterbilt. Peter showed up within an hour and had me rolling again by noon next day good, honest mechanic is priceless these days I highly recommend."

Stephen

Contact & Location

Billing

Here at K&M TRUCK REPAIR, we know that any product or service that streamlines your fleet repairs saves you time and money, so we now have cbCharge available. It is a simple and free charge account that consolidates your billing through a secure online portal and provides 30-day payment terms with no interest or late fees. Your fleets repairs and maintenance are completed and billed and emailed from K&M TRUCK REPAIR. Then you get one monthly invoice from cbCharge, similar to a credit card bill.

Apply Here
Speak to a Service Advisor Now!