Free Radiator & Connections Inspection
Loose or over-tightened hoses, blocked fins, and internal scale are leading causes of no-starts and overheats – and most don’t show until the unit’s under load. We’ll check your cooling system in about 20 minutes. Whoever services your unit. No charge, no pressure.
It’s time to check your radiator & connections
A radiator looks fine from the outside and still be failing inside. Loose or over-tightened hoses, scale buildup, or a weak pressure cap won’t show up until the unit is running hot under load — exactly when it can’t afford to shut down. A 20-minute check now beats a five-figure overheat during an emergency run.
In addition to being one of the largest sources for commercial and industrial surplus new and used power generators, Generator Source provides a variety of services to assist customers with their on-site power generation needs and requirements. We offer a wide range of service solutions here at our shop or our technicians will travel on-site to service industrial generators as needed in our service area. Our fleet of service trucks offer maintenance, 24/7 emergency service, repairs, diesel fuel delivery, and custom service solutions.
What We Check
A $0 inspection beats a five-figure overheat. Cooling-system issues rarely announce themselves until the unit’s already running hot under load
- Hose and connection condition (loose, cracked, or over-tightened)
- Radiator fins and airflow
- Coolant level, color, and concentration
- Leaks and coolant residue
- Pressure cap integrity
- Pressure/flow testing to surface internal scale or restriction that a visual check misses
Radiator Maintenance Video
The radiator removes heat from the coolant by transferring it to airflow through the core. When performance drops, engine temperature rises under load and the generator may alarm or shut down. Our PM1 inspections check for airflow blockage, fin damage, leaks, coolant residue, discoloration, and pressure cap integrity. Pressure and flow testing surfaces internal scale and restriction that a visual check can’t detect — problems that are invisible from outside but dramatically reduce cooling capacity during extended operation.
We Work on Your Schedule & Service Every Brand
Generator Source is the largest reseller/servicer of commercial generators in the US. We service all brands including Generac, CAT, Cummins, Rehlko (formerly Kohler) and many many more.
Contact us for a free inspection / generator service
Still have power questions?
Generator Source specializes in low-hour, used, new, and surplus generator sets. We have a wide variety of generator sizes and models to fit any project. We are not a broker, we own what we sell.
Call us today (877-866-6895) or click Contact Us to be connected with one of our experienced sales reps.
We have 350+ generators in stock and ready to ship!
Generator Service FAQ
Got a question about generator maintenance? Our Service FAQs page covers it. Find clear answers on preventive maintenance intervals, load bank testing, fuel polishing, wet stacking, ATS issues, and NFPA 110 compliance. Written by the technicians who actually service generators in the field every day.