Hipower Systems · HJW Series (Stationary Diesel)

Hipower HJW-155

154 kW standby · Diesel · Liquid-cooled

155 kW diesel standby generator. John Deere 6068HF285 family engine, Stamford UCI 274 alternator. EPA Tier 3. US manufactured in Olathe, Kansas.

Hipower Systems Hipower HJW-155 generator — specifications and details
Standby power
154 kW
Voltage options
120/240V, 120/208V, 277/480V
Frequency / Phase
60 Hz · 1/3-phase
Engine
John Deere 6068HF285-177 · 6.8L
EPA / Emissions
Tier 3
Alternator
Stamford UCI 274 G

Overview#

The Hipower HJW-155 is a 155 kW diesel standby generator from the HJW Industrial series, assembled at Hipower Systems' Olathe, Kansas facility. It uses a John Deere 6068HF285 family engine — a 6.8-liter six-cylinder turbocharged diesel — paired with a Stamford UCI 274 series alternator. The set is EPA Tier 3 certified and carries UL 2200 and CSA listings.

The HJW-155 is the point in the HJW product line where Hipower transitions from the four-cylinder 4045 platform to the larger six-cylinder 6068 engine, reflecting the higher displacement needed to produce 155 kW in standby service. This output class serves medium-large commercial standby applications: multi-story office buildings, larger retail operations, light manufacturing, and medical facilities.

John Deere Engine Platform#

The John Deere 6068 is a 6.8-liter inline six-cylinder diesel engine widely used in agricultural, construction, and industrial applications. The 6068HF285 family designation indicates a turbocharged, high-flow configuration appropriate for generator-set duty at the 155 kW class. Six-cylinder inline architecture provides smooth torque delivery and excellent thermal headroom at the 1,800 rpm generator operating speed.

The 6068 engine has comprehensive North American dealer support. Parts availability — filters, injection components, belts, cooling system parts — is strong throughout California and the western US. Independent diesel mechanics experienced with John Deere commercial equipment can service the 6068 without specialized dealer tooling for most routine maintenance.

Hipower Manufacturing#

Hipower Systems produces complete generator sets at its Olathe, Kansas facility, including the HJW-155. Each unit is factory load tested and issued a test certificate. The HJW series uses heavy-duty steel skid construction with resilient anti-vibration isolators. Optional sound-attenuated enclosures are available for noise-sensitive commercial and industrial sites. The set meets NFPA 110 Level 1 requirements when properly accessorized.

Service and Maintenance#

John Deere recommends 250-hour or annual oil and filter changes for the 6068 engine family. The six-cylinder configuration results in a larger oil capacity than the four-cylinder 4045 models — budget accordingly for annual service. Fuel filter replacement at 500 hours or annually is critical in standby service to prevent fuel degradation from causing injection system issues. Air cleaner inspection is due at 500 hours.

The Stamford UCI 274 alternator requires periodic connection inspection and insulation resistance testing. Starting battery float charging maintains reliable start capability between monthly exercise runs.

Our Service Experience#

OnPoint Generators services Hipower HJW series generators throughout the San Francisco Bay Area and Northern California. The 155 kW output of the HJW-155 covers a wide range of NorCal commercial standby applications. The John Deere 6068 platform is well supported by California dealers, and our service team is experienced with the full HJW product line. Contact OnPoint for maintenance programs, load bank testing, or pre-purchase inspections.

Engineering specifications

Acoustic

Enclosure
Sound-attenuated

Documents & downloads

Spec sheets & manuals

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Estimated runtime

24.1 hours(1.0 days)

Fuel consumption ≈ 8.32 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 Hipower HJW-155 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 250 hours or 12 months
Air filter
Every 500 hours
Fuel filter
Every 500 hours
Major overhaul
20,000 hours

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
Fuel filterClogging in extended standby — replace at 500 hours or annually500+minor
Starting batteryCapacity loss in standby — test annually and float-charge between exercises4,380+minor
Coolant hosesWeeping at connections from thermal cycling — inspect at each oil change5,000+minor

Frequently Asked Questions

What engine does the HJW-155 use?
The HJW-155 uses a John Deere 6068HF285 family engine — a 6.8-liter six-cylinder turbocharged diesel. The 6068 is a step up in displacement from the 4045 used in the smaller HJW models. Exact engine model suffix requires confirmation from the OEM spec sheet.
How does the HJW-155 fit in the HJW product line?
The HJW-155 bridges the 129 kW HJW-130 and the 205 kW HJW-205. It is the first model in the HJW series to use the larger John Deere 6068 six-cylinder engine rather than the 4045 four-cylinder, reflecting a step up in power density and displacement.
What are the service intervals on the HJW-155?
John Deere recommends oil and filter changes at 250 hours or 12 months for the 6068 engine family. Fuel filter replacement at 500 hours or annually. Air filter inspection at 500 hours. In standby service, the annual calendar interval typically governs.
Is the HJW-155 suitable for NFPA 110 Level 1 applications?
Yes. The HJW series is designed to meet NFPA 110 Level 1 requirements with appropriate accessories. Units carry UL 2200 and CSA certification.
What alternator does the HJW-155 use?
The HJW-155 uses a Stamford UCI 274 series alternator. The specific winding variant depends on voltage configuration and should be confirmed from the OEM spec sheet for the unit in question.
Is parts availability good for the John Deere 6068 engine?
Yes. The John Deere 6068 is a well-established commercial engine platform with broad dealer and independent service coverage throughout California. Parts availability for filters, belts, and injection components is strong.
What applications is the HJW-155 suited for?
At 155 kW, the HJW-155 is appropriate for medium-large commercial standby: multi-tenant office buildings, larger retail facilities, light manufacturing, medical clinics, and telecom facilities in the 300-400A service range at 480V.

More in the HJW Series (Stationary Diesel)

55 to 410 kW John Deere diesel standby — UL 2200 and CSA listed, four-voltage support, proven in commercial and industrial standby for over a decade.

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