What engine does the PD125-01 use?

The Perkins 1106D-E70TAG2 — a 7.01-liter, six-cylinder electronically injected turbocharged and charge-air-cooled diesel rated for this 125 kWe standby application. The 1106D platform marks a step up from the 4-cylinder 1104D series used in PD50–PD100, adding two cylinders and 2.61 liters of displacement for a smoother power delivery and lower combustion stress per cylinder. The same engine powers the PD150-01 at a higher output. It is EPA Tier 3 certified for stationary emergency use. Rated power is available up to 3,281 ft (1,000 m) at ambient temperatures to 104°F (40°C).

What controller does the PD125-01 use?

The DSE DCP7310 Digital Control Panel, with CAN Bus J1939 engine communication, digital metering, RS-485 interface, 8 programmable contact inputs, 10 contact outputs, and NFPA 110 Level 1 compatibility. It is cULus Listed and CE Approved with IP 65 ingress protection (with supplied gasket).

How does the PD125-01 compare to the PD100-01 and PD150-01?

The PD100-01 uses the 4-cylinder 1104D-E44TAG2 at 100 kWe on a smaller 90×44 in footprint (2,500 lbs). The PD125-01 moves to the 6-cylinder 1106D-E70TAG2 on a 110×54 in platform (3,700 lbs, 9.58 gph). The PD150-01 uses the same 1106D-E70TAG2 engine at a higher output (150 kWe) on the same 110×54 in footprint (3,775 lbs, 11.2 gph). The PD125-01 and PD150-01 share the same equipment pad, allowing an upgrade without structural changes.

What are the ventilation requirements for an indoor PD125-01 installation?

The PD125-01 requires 7,173 CFM of radiator cooling airflow and 509 CFM combustion air. Heat radiated to ambient is 154,320 BTU/hr; the coolant circuit rejects 256,800 BTU/hr. Exhaust exits at 842°F at 1,057 CFM — notably cooler exhaust than the 4-cylinder PD80/100 despite higher output, reflecting the 6-cylinder platform's efficiency. For fuel planning: at full load (9.58 gph), a 500-gallon tank provides approximately 52 hours of runtime.

What engine does the PD125-01 use?

The Perkins 1106D-E70TAG2 — a 7.01-liter, six-cylinder electronically injected turbocharged and charge-air-cooled diesel rated for this 125 kWe standby application. The 1106D platform marks a step up from the 4-cylinder 1104D series used in PD50–PD100, adding two cylinders and 2.61 liters of displacement for a smoother power delivery and lower combustion stress per cylinder. The same engine powers the PD150-01 at a higher output. It is EPA Tier 3 certified for stationary emergency use. Rated power is available up to 3,281 ft (1,000 m) at ambient temperatures to 104°F (40°C).

What controller does the PD125-01 use?

The DSE DCP7310 Digital Control Panel, with CAN Bus J1939 engine communication, digital metering, RS-485 interface, 8 programmable contact inputs, 10 contact outputs, and NFPA 110 Level 1 compatibility. It is cULus Listed and CE Approved with IP 65 ingress protection (with supplied gasket).

How does the PD125-01 compare to the PD100-01 and PD150-01?

The PD100-01 uses the 4-cylinder 1104D-E44TAG2 at 100 kWe on a smaller 90×44 in footprint (2,500 lbs). The PD125-01 moves to the 6-cylinder 1106D-E70TAG2 on a 110×54 in platform (3,700 lbs, 9.58 gph). The PD150-01 uses the same 1106D-E70TAG2 engine at a higher output (150 kWe) on the same 110×54 in footprint (3,775 lbs, 11.2 gph). The PD125-01 and PD150-01 share the same equipment pad, allowing an upgrade without structural changes.

What are the ventilation requirements for an indoor PD125-01 installation?

The PD125-01 requires 7,173 CFM of radiator cooling airflow and 509 CFM combustion air. Heat radiated to ambient is 154,320 BTU/hr; the coolant circuit rejects 256,800 BTU/hr. Exhaust exits at 842°F at 1,057 CFM — notably cooler exhaust than the 4-cylinder PD80/100 despite higher output, reflecting the 6-cylinder platform's efficiency. For fuel planning: at full load (9.58 gph), a 500-gallon tank provides approximately 52 hours of runtime.

Blue Star Power Systems · Diesel Product Line (Perkins)

New

Blue Star PD125-01

Name: Blue Star PD125-01
Brand: Blue Star Power Systems
Availability: PreOrder

125 kW standby · Diesel · Liquid-cooled

125 kW Tier 3 diesel standby generator built by Blue Star Power Systems. Perkins 1106D-E70TAG2 six-cylinder engine with charge air cooling, Stamford UCI274E alternator, DSE DCP7310 controller.

Blue Star PD125-01

Photo coming soon

Standby power: 125 kW
Voltage options: 120/240V, 120/208V, 277/480V, 347/600V
Frequency / Phase: 60 Hz · 1/3-phase
Engine: Perkins 1106D-E70TAG2 · 7.01L
EPA / Emissions: Tier 3
Alternator: Stamford UCI274E

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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.

Engineering specifications

Physical

Length: 110 in
Width: 54 in
Height: 65 in
Dry weight: 3,700 lb

Acoustic

Sound @ 7m, full load: 85 dBA
Enclosure: Open

Fuel system & runtime

Fuel use @ full load: 9.58 GPH
Fuel use @ 75% load: 7.87 GPH
Fuel use @ 50% load: 5.62 GPH

Thermal & ventilation

Heat to coolant: 256,800 BTU/hr
Heat radiated: 154,320 BTU/hr
Exhaust flow: 1,057 CFM
Exhaust temp: 842 °F
Combustion air: 509 CFM
Ventilation air: 7,173 CFM

Documents & downloads

Spec sheets & manuals

Spec sheet (datasheet)

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Estimate runtime for the Blue Star PD125-01

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

Estimate runtime on this tank

Generator size

Fuel

Fuel tank capacity

gal

Load

Override full-load GPH (optional)

GPH

Estimated runtime

27.1 hours(1.1 days)

Fuel consumption ≈ 7.39 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.

Service intervals

Manufacturer-recommended intervals for the Blue Star PD125-01 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter: Every 500 hours or 12 months
Coolant change: Every 6000 hours
Air filter: Every 1000 hours
Fuel filter: Every 500 hours
Major overhaul: ≈ 20,000 hours
Load bank test: Every 12 months

Common failure modes

What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.

Component	Symptom	Typical hours	Severity
Fuel quality / degradation	Hard starting, filter clogging, reduced power	4,380+	moderate
Turbocharger	Power loss, excessive smoke under load	12,000+	moderate
Battery	Failed to start, slow crank	8,760+	minor

Frequently Asked Questions

What engine does the PD125-01 use?: The Perkins 1106D-E70TAG2 — a 7.01-liter, six-cylinder electronically injected turbocharged and charge-air-cooled diesel rated for this 125 kWe standby application. The 1106D platform marks a step up from the 4-cylinder 1104D series used in PD50–PD100, adding two cylinders and 2.61 liters of displacement for a smoother power delivery and lower combustion stress per cylinder. The same engine powers the PD150-01 at a higher output. It is EPA Tier 3 certified for stationary emergency use. Rated power is available up to 3,281 ft (1,000 m) at ambient temperatures to 104°F (40°C).
What controller does the PD125-01 use?: The DSE DCP7310 Digital Control Panel, with CAN Bus J1939 engine communication, digital metering, RS-485 interface, 8 programmable contact inputs, 10 contact outputs, and NFPA 110 Level 1 compatibility. It is cULus Listed and CE Approved with IP 65 ingress protection (with supplied gasket).
How does the PD125-01 compare to the PD100-01 and PD150-01?: The PD100-01 uses the 4-cylinder 1104D-E44TAG2 at 100 kWe on a smaller 90×44 in footprint (2,500 lbs). The PD125-01 moves to the 6-cylinder 1106D-E70TAG2 on a 110×54 in platform (3,700 lbs, 9.58 gph). The PD150-01 uses the same 1106D-E70TAG2 engine at a higher output (150 kWe) on the same 110×54 in footprint (3,775 lbs, 11.2 gph). The PD125-01 and PD150-01 share the same equipment pad, allowing an upgrade without structural changes.
What are the ventilation requirements for an indoor PD125-01 installation?: The PD125-01 requires 7,173 CFM of radiator cooling airflow and 509 CFM combustion air. Heat radiated to ambient is 154,320 BTU/hr; the coolant circuit rejects 256,800 BTU/hr. Exhaust exits at 842°F at 1,057 CFM — notably cooler exhaust than the 4-cylinder PD80/100 despite higher output, reflecting the 6-cylinder platform's efficiency. For fuel planning: at full load (9.58 gph), a 500-gallon tank provides approximately 52 hours of runtime.

Compatible equipment

Transfer switches

ASCO 300 Series ATSAutomatic Transfer Switches

Tier 4 Final3-phaseconstructiontemporary-power

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