Detroit Diesel · Detroit Diesel Series 60

Detroit Diesel Series 60 14.0L

500 kW standby · Diesel · Liquid-cooled

Detroit Diesel Series 60 14.0L diesel generator — 500 kW standby, four-stroke inline-6. Discontinued but still widely serviced.

Standby power
500 kW
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Detroit Diesel Series 60 14.0L · 14L

Overview#

The Detroit Diesel Series 60 14.0L is a legacy diesel generator powered by the largest displacement variant of the Series 60 four-stroke inline-six platform. With 14.0 liters of displacement, this engine produces approximately 500 kW in standby generator applications, placing it at the top of the Series 60 power range. The 14.0L variant was developed to meet demand for higher output while retaining the Series 60's electronic fuel injection and emissions compliance advantages.

Manufactured from the early 1990s until 2011, the Series 60 14.0L is no longer in production. It met Tier 1 and Tier 2 emissions standards and was the most powerful engine Detroit Diesel offered in the Series 60 family for generator duty. Its successor platform is the MTU Series 2000/4000. The 14.0L variant maintains strong aftermarket parts availability and service support across North America. OnPoint provides comprehensive maintenance, overhaul, and control system services for facilities that continue to operate Series 60 14.0L generator sets.

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Estimate runtime for the Detroit Diesel Series 60 14.0L

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

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Estimated runtime

7.4 hours(0.3 days)

Fuel consumption ≈ 27.00 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 Detroit Diesel Series 60 14.0L 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.

ComponentSymptomTypical hoursSeverity
Turbocharger(s)Major power loss, heavy exhaust smoke12,000+severe
Fuel quality / degradationInjector fouling, hard starting4,380+moderate
Battery bank (24V)Failed start, slow cranking8,760+minor

Frequently Asked Questions

Are parts still available for the Detroit Diesel Series 60 14.0L generator?
Yes. The Series 60 14.0L maintains strong aftermarket parts availability through the MTU/Detroit Diesel dealer channel and independent suppliers. Injectors, turbochargers, and electronic control modules are readily available. The large on-highway installed base of the Series 60 sustains a deep parts supply chain.
What is the difference between the Series 60 12.7L and 14.0L generators?
Both are four-stroke electronically controlled inline-6 engines. The 14.0L variant has 10% more displacement, producing 500 kW versus 350 kW standby. The 14.0L was developed to meet demand for higher output while retaining the same electronic fuel injection platform and service procedures.

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