Overview#
The Blue Star PD125-01 is a 125-kilowatt Tier 3 diesel standby generator powered by the Perkins 1106D-E70TAG2, a 7.01-liter six-cylinder electronically injected turbocharged and charge-air-cooled engine. It represents the transition point in Blue Star's Perkins lineup from 4-cylinder to 6-cylinder architecture, with a 110×54 in footprint that it shares with the PD150-01, PD180-01, and PD200-01.
Blue Star Power Systems (North Mankato, Minnesota) pairs the 1106D-E70TAG2 with a Stamford UCI274E alternator and DSE DCP7310 controller. At 3,700 lbs, the PD125-01 is substantially heavier than the 4-cylinder PD100-01 (2,500 lbs), reflecting the larger 6-cylinder engine and alternator package. The move to six cylinders also produces notably cooler exhaust (842°F) compared to the 4-cylinder models — a simpler exhaust system requirement.
The 1106D-E70TAG2 at 125 kWe#
The Perkins 1106D-E70 is one of the most widely deployed 6-cylinder generator engines in the world. At 7.01 liters, each cylinder is working comfortably at 125 kWe standby — there is significant headroom, since the same engine produces 150 kWe in the PD150-01. This lower specific output contributes to longer engine life and lower combustion temperatures. The 842°F exhaust temperature is among the lowest in the 100–200 kWe class across all manufacturers.
When to spec the PD125-01#
- 100–125 kW emergency standby loads on diesel fuel
- Commercial, light-industrial, and multi-family applications with Tier 3 acceptance
- Sites where the 110×54 in platform footprint will accommodate future upgrades to 150–200 kW
- Competitive bids against a 125 kW Kohler or Cummins diesel option
Our service experience#
The 1106D-E70TAG2 at 125 kWe is running comfortably below its peak. Load bank testing at commissioning is standard; at annual service, the lower combustion stress means cylinder and head components tend to have excellent longevity. Follow the Perkins 1100D generator series service schedule. Parts are globally available through the Perkins dealer network.
