GP-J400-60T2 John Deere Generator: 400 kW of Proven Industrial Power

The GP-J400-60T2 is a fully packaged 400 kW / 500 kVA three-phase diesel generator set built around a John Deere 6135HFG84 engine and paired with a Leroy Somer alternator, designed for stationary standby applications across a wide range of commercial and industrial environments. Made in the USA and factory load bank tested, this unit is engineered to perform from the moment it arrives on site.

• ESP Output: 407 kWe / 509 kVA (at 480/277V)
• PRP Output: 372 kWe / 465 kVA (at 480/277V)
• Engine: John Deere 6135HFG84, turbocharged and aftercooled, 13.5L displacement
• Speed: 1800 RPM with electronic governor
• Alternator: Leroy Somer TAL-046-J, IP23 protection, insulation class H
• Controller: DeepSea DSE7320 digital auto-start/stop panel
• Compliance: US EPA Tier 2, ISO8528, CE and UL certified
• Integral Fuel Tank: 757 liters (200 gallons) for on-site autonomy
• Fuel Consumption at 100% Prime Load: 113.0 L/hr (29.8 Gal/hr)
• Load Acceptance: 100% rated load in one step per NFPA 110, ISO8528-5 Class G-3
• Version: Enclosed (Fully Weather Proof Silent Enclosure)
• EPA Compliant: EPA Stationary Emergency

Every unit undergoes both prototype and individual factory load bank testing before shipment, giving buyers full confidence in performance from day one. The mechanically welded chassis with vibration isolators and included main line circuit breaker round out a package that is ready to install and commission with minimal additional hardware.

John Deere Engine Performance Inside the GP-J400-60T2

The John Deere 6135HFG84 is a six-cylinder, inline turbocharged and air-to-air aftercooled diesel engine with a 13.5L displacement and a compression ratio of 16.0:1. Running at 1800 RPM, it produces a maximum standby output of 460 kW (617 HP) with an electronic governor ensuring stable frequency regulation under variable loads. 

Fuel efficiency is a strong point: at 75% prime load, consumption drops to 92.6 L/hr, and at 50% load it falls further to 64.9 L/hr. With the standard 200-gallon integral tank, operators can expect approximately 8 hours of runtime at 75% prime load, extending significantly with optional external tank configurations up to 1,000 gallons for 41 hours of continuous operation. 

The engine is EPA Tier 2 compliant for stationary standby applications, making it a dependable and permittable choice for facilities across the United States.

Alternator and Control System

The Leroy Somer TAL-046-J alternator delivers three-phase output at a power factor of 0.80, with voltage regulation held tightly between 0 and 100% load at plus or minus 1.0%. Featuring a single-bearing direct coupling design, insulation class H, and a Leroy Somer R250 AVR, this alternator is built to handle demanding load profiles without voltage instability. 

The standard DeepSea DSE7320 controller provides both manual and automatic start/stop capability with full CANBUS connectivity, a 132x64 LCD display, and a 250-event fault log with date and time stamps for simplified diagnostics. Remote monitoring via Ethernet, RS485, and optional GSM/SIM card messaging makes this controller well suited for unmanned or remotely managed installations. 

An optional DeepSea DSE8610 upgrade adds full paralleling capability for up to 32 generators with peak lopping, sequential starting, and automatic load sharing.

Enclosure Options for the GP-J400-60T2

For sites requiring weather protection or noise reduction, the GP-6135 weatherproof and super silent enclosure is purpose-built for this generator. Constructed from 12-gauge electro-zinc powder coated steel with up to 51mm of acoustic insulation, the enclosure achieves a 29 dB(A) internal-mounted critical silencer rating while meeting salt spray, UV performance, and paint adhesion standards. 

The modular panel design allows full serviceability without compromising the enclosure structure, and multi-personnel access doors provide convenient entry to all key service points.

Accessories and Customization Options

Buyers can configure the GP-J400-60T2 with a broad range of factory-matched accessories. UL1008-listed ASCO automatic transfer switches are available from 100 to 4,000 amps, and UL142-listed double-wall fuel tanks are offered from 50 to 5,000 gallons for extended runtime or secondary containment compliance. 

D.O.T.-compliant road trailers, automatic battery chargers, engine preheaters, and remote annunciators are also available, making it straightforward to build a fully self-contained power solution around this generator regardless of the application.