Wacker Neuson Generators for Construction Fleets

Wacker Neuson is a construction equipment manufacturer first and a generator builder second, and that shapes its generators. The company traces its roots to a blacksmith shop in Dresden, Germany in 1848 and has built equipment for the North American market since 1957. Its lineup spans compaction equipment, light towers, pumps, heaters, and compact machines, with G-series mobile diesel generators built to work alongside all of it. That makes Wacker Neuson a common choice for construction sites, rental fleets, municipal crews, and contractors who want power equipment from the same manufacturer as the rest of their jobsite fleet.

Wacker Neuson G-Series Models by Size

Every Wacker Neuson generator in our inventory history has been a trailer-mounted G-series diesel. Here is how the models group by size, based on standby ratings from our listings:

Small: G25 and G50

Roughly 20 kW to 42 kW. Site trailers, lighting, hand tools, and small pumps. Shop 20kW – 24kW and 25kW – 49kW generators.

Mid-size: G70 and G100

Roughly 63 kW to 88 kW. Larger jobsites and temporary commercial power. Shop 50kW – 74kW and 75kW – 99kW generators.

Large: G130, G180, and G240

Roughly 114 kW to 210 kW. Heavy construction loads and temporary facility support. Shop 100kW – 249kW generators.

As with most mobile brands, the model number runs higher than the kW rating. A G100 delivers 88 kW standby, so size against the listed output rather than the name.

One Brand, Several Engine Makers

Wacker Neuson sources engines from different manufacturers depending on model and year, and the engine determines where you get parts for the life of the unit. Across the G-series units we have stocked:

• Isuzu engines on the small G25.
• John Deere engines on many G50 and G240 units.
• Kohler KDI engines on some G50 and G70 units. Kohler also builds generators, covered on our Kohler generators page.
• Cummins engines on the G100, G130, and G180. See our Cummins generators for complete Cummins sets.

Two G50 units can carry different engines, so always confirm the engine on the individual listing before ordering parts or planning service.

Features Rental Fleets Look For

G-series units are built around the needs of equipment that changes hands often. Listings we have carried include three-position voltage selector switches, camlock connections, Basler or Deep Sea digital controllers, sound-attenuated enclosures, and onboard belly tanks on tandem axle trailers with standard ball hitches. Some larger units have also carried California PERP registration, which matters if the generator will operate in California. Confirm emissions tier and registration on each listing against where the unit will run.

Contractor Math on a Used Wacker Neuson

Renting fits a single project with a defined end date. Our rental division, Stag Power Rentals, handles that side of the business. Buying wins once a mobile unit stays busy. Contractors running a generator across consecutive jobs usually find that a year of rental payments approaches the cost of an inspected used machine. Our used industrial generators keep the cost down, and our generator financing options make it easier to fit into a budget.

Wacker Neuson Units Tested Before Delivery

Every Wacker Neuson generator we sell passes a 22-point inspection and load bank testing before shipment. For fleet equipment that has spent years on the road, testing under load is what separates a well-maintained unit from one that only looks the part. We have been buying and selling industrial generators for more than a decade. Every purchase is backed by our 30-day IronClad warranty. After delivery, our service team handles preventative maintenance and fuel system repair. Comparing mobile brands? Doosan generators and Atlas Copco generators compete in the same class, and our shop by brand page covers every manufacturer we carry.

Ready to Buy a Wacker Neuson Generator?

Tell us what you are powering on site and how often the unit will move, and we will match you to the right G-series model. Browse our trailer-mounted generators or contact us to talk it through.