Gillette · PR Series (Prime Gas)

Gillette PR-2400

240 kW standby · Natural Gas · Liquid-cooled

240 kW prime-rated natural gas generator. PSI 14.6L V8 turbocharged, Stamford S4L1DD alternator, DSE 7420 MKII. Continuous duty, 3-phase only. Made in USA.

Gillette Gillette PR-2400 generator — specifications and details
Standby power
240 kW / 240 kW prime
Voltage options
120/208V, 120/240V, 277/480V, 346/600V
Frequency / Phase
60 Hz · 3-phase
Engine
PSI 14.6L V8 TCAC · 14.6L
EPA / Emissions
EPA Stationary Spark Ignition
Alternator
Stamford S4L1DD-311
prime-powerremote-siteminingManufacturingoff-gridCommercial
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Overview#

The Gillette PR-2400 is a 240-kilowatt prime-rated natural gas generator on PSI's 14.6L turbocharged V8 — the same engine platform as the SP-3500 standby (350 kW). At 240 kW prime (362 bhp), the engine operates well within its thermal design limits for unlimited continuous duty. Three-phase only, Stamford S4L1DD alternator, DSE 7420 MKII controller.

Standby to prime: the SP-3500 and PR-2400 relationship#

The PSI 14.6L V8 demonstrates the standby-to-prime derating pattern:

  • SP-3500: 350 kW standby (536 bhp) — limited annual hours
  • PR-2400: 240 kW prime (362 bhp) — unlimited continuous duty

The 31% derating ensures engine longevity under sustained load. For facilities that need continuous power at 200+ kW on natural gas, the PR-2400 is the appropriate specification.

Our service experience#

The PSI 14.6L at continuous duty requires 8-cylinder ignition service at 1000-hour intervals — approximately every 6 weeks at 24/7 operation. We structure PR-2400 maintenance as multi-technician service events to complete the 8-cylinder ignition, oil, and air filter service efficiently within a planned maintenance window.

Engineering specifications

Physical

Length
152 in
Width
72 in
Height
80 in
Wet weight
8,475 lb

Acoustic

Sound @ 7m, full load
80 dBA
Enclosure
Sound-attenuated

Fuel system & runtime

BTU/hr @ full load
3,086,000

Photos

Gillette PR-2400 — product photo

Documents & downloads

Spec sheets & manuals

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Estimate runtime for the Gillette PR-2400

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

Estimate runtime on this tank

Fuel demand at 75% load

2,520,000 BTU/hr≈ 2520.0 cf/min @ 1,000 BTU/cf

On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.

Service intervals

Manufacturer-recommended intervals for the Gillette PR-2400 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 250 hours or 6 months
Coolant change
Every 4000 hours
Air filter
Every 500 hours
Spark plugs
Every 1000 hours
Major overhaul
≈ 15,000 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.

ComponentSymptomTypical hoursSeverity
TurbochargerPower loss from continuous high-output duty10,000+moderate
Spark plugs / ignitionMisfire, rough running under sustained load1,000+moderate
Oil degradationAccelerated valve train wear from continuous duty250+minor

Frequently Asked Questions

Is this the same 14.6L V8 as the SP-3500 standby?
Yes — same PSI 14.6L V8 TCAC engine block. The SP-3500 is rated at 350 kW standby; the PR-2400 is rated at 240 kW prime. The 31% lower prime rating ensures the engine operates within thermal limits for unlimited continuous duty hours.
What fuel consumption at 240 kW prime?
3,086 ft3/hr NG at full load. At 75%: 2,292 ft3/hr. At 50%: 1,610 ft3/hr. At continuous duty, this is a significant sustained gas demand requiring a dedicated commercial gas service.

Compatible equipment

Controllers

Transfer switches

More in the PR Series (Prime Gas)

80–540 kW natural gas prime power on PSI engines — continuous duty for remote sites, mining, and off-grid operations.

View all 7models in this series →

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