New & Used Industrial-Rated Olympian generators For SaleOlympian Generators

Olympian Generators for Small Commercial Standby

Olympian focuses on the small-to-medium end of the market. The current lineup runs from 20 kW to 200 kW in both diesel and natural gas, built for businesses that need dependable backup without stepping into large-frame industrial equipment. That size class covers a wide range of facilities: bank branches, hotels, schools and campuses, telecom sites, retail, clinics, and light manufacturing. Most are backing an essential panel or a full small building rather than a campus, which is the load profile Olympian was designed around.

Olympian as a Caterpillar Brand

This is the question buyers ask most often about the brand, and the answer affects both price and support. Caterpillar created Olympian in 1992 as a separate brand for smaller generator sets sold through its dealer network. Earlier units were built for Cat by licensed partner manufacturers. Current Olympian generators are manufactured by Caterpillar directly and sold to end customers across North America. The practical difference from a Cat-badged unit comes down to positioning. Olympian gives buyers access to Caterpillar engineering in a simpler, more cost-conscious package, while Caterpillar generators cover the full range up through megawatt-class equipment. Parts support runs through the Cat dealer network for both, which is a meaningful advantage when you need a component on short notice.

Olympian Duty Ratings

Olympian units are specified for three types of duty, and knowing which one you need narrows the search considerably.

Standby

The generator runs only when utility power fails. This is the most common application in this size class, typically paired with an automatic transfer switch. Browse our standby generators for current options.

Prime

The generator serves as a primary power source where utility service is unavailable or unreliable, running for extended hours at variable load. Common at remote sites and in agriculture.

Demand response

Some utilities pay facilities to reduce grid consumption during peak demand events, and a generator can carry the building through those windows. Program rules vary by utility and emissions requirements apply, so confirm eligibility before planning around it.

Olympian Sizes From 20 kW to 200 kW

List every load running at the same time, separate resistive loads like lighting from inductive loads like HVAC compressors and pumps, and account for startup surge. Our power calculators will get you a working estimate. Within the Olympian range, most buyers land in 25kW – 49kW, 50kW – 74kW, or 75kW – 99kW for small commercial standby, with 100kW – 249kW covering the upper end of the lineup. Older Olympian units in the used market may fall outside the current range, so check each listing for its rating. If your load runs past what Olympian builds, Kohler generators and Generac generators extend into larger sizes, and our shop by brand page covers every manufacturer we carry.

Why Backup Power Buyers Own Their Olympian

For facility standby, buying is almost always the right answer. A backup generator earns its value by being on your site when the utility drops, not by logging hours, and rental fleets are committed elsewhere during the regional outages you are protecting against. Pre-owned Olympian units keep the upfront cost manageable, and our generator financing options spread it out further. Renting makes sense for a temporary need with a fixed end date, such as covering a facility while a permanent unit is replaced. Our rental division, Stag Power Rentals, handles those situations.

Olympian Units Tested Before Shipment

Every Olympian generator we sell passes a 22-point inspection and load bank testing before it ships, so it arrives verified under load rather than on paper. We have been buying and selling industrial generators for more than a decade. Every purchase is backed by our 30-day IronClad warranty, new or used. After installation, our service and maintenance team handles scheduled service and repairs, including emergency service when a unit fails unexpectedly.

Ready to Buy an Olympian Generator?

Tell us what you need to keep running and whether you prefer diesel or natural gas, and we will match you to the right Olympian unit. Browse our full inventory of industrial generators or contact us to talk it through.