The alternator is half the generator
A diesel generator has two main components: the engine and the alternator. The engine produces mechanical power. The alternator converts it into electricity. If either one fails, the generator fails.
A premium engine paired with a low-quality alternator will deliver unstable voltage, overheat under load, and fail early — often right when you need it most.
The problem in the market
Today's market is flooded with generators that pair strong, well-known engine brands with cheap, unknown alternators to cut costs — and offer lower prices to compete. The engine name sells the unit — but the alternator quietly determines its real-world performance and lifespan.
The result is a generator that looks like a good deal on paper but underperforms or fails early. Buyers don't usually discover this until something goes wrong.
What makes Leroy Somer different
Leroy Somer is a French alternator manufacturer with over 100 years of experience, and one of the most trusted names in industrial power generation worldwide.
- ✓Stable voltage output — precise regulation even under variable loads
- ✓High efficiency — less energy wasted as heat
- ✓Built for harsh climates — designed to handle extreme temperatures
- ✓Long service life — designed for long-term reliability
The control panel matters too
The alternator is not the only component buyers overlook. The control panel is equally critical — it's the brain that manages start/stop, monitors faults, and protects the generator from damage. A generator with a quality alternator but a cheap controller is still a risk.
Read our guide on DSE control panels to understand why the controller deserves the same attention.
What to ask before you buy
When comparing generators, always ask the supplier: "What alternator brand does it use?"
If the answer is a brand you've never heard of, that's a red flag — regardless of how strong the engine is.
Every generator we supply — Kubota, John Deere, and Cummins — comes standard with a Leroy Somer (France) alternator. No exceptions.
The availability of Kubota generator agency, John Deere generator agency, Cummins generator agency, along with genuine spare parts in Saudi Arabia, has helped Kubota generators, John Deere generators, and Cummins generators spread across a wide range of power outputs from 10 to 1000 kVA in the Kingdom.
