MTU (Rolls-Royce) 16V4000 DS2250
2,250 kW standby diesel genset on the mtu Series 4000 V-16, the data center DS line flagship
This model is part of SecondWatt’s generator research catalogue. Specifications and price observations are included where supported by sources. Equipment availability and commercial terms require confirmation.
MTU 16V4000 DS2250 genset dossier: 2,250 kW standby specs, 2,045 kW data center rating, used pricing observations from 325,000 USD, inspection checklist.
The mtu 16V4000 DS2250 is a 2,250 kW standby 60 Hz genset built on the 76.3 L Series 4000 V-16 (170 x 210 mm) with common-rail injection, sold by Rolls-Royce Solutions (MTU Friedrichshafen renamed in 2021). Its Data Center Continuous Power rating is 2,045 kW with unlimited operating hours and Uptime Tier III/IV compliance, burning 617 L/hr at full standby load with a published 98.7 dBA at 7 m open-unit sound level and EPA Tier 2 certification, including an SCAQMD-labeled configuration.
DS-series gensets are the mtu North American data center line, and data centers now exceed 80% of Rolls-Royce power generation revenue with orders into 2027-2028.
Used DS-class supply is thin and clears fast: three priced Depco 16V4000 2,000 kW observations (325,000 to 649,900 USD, all marked sold) frame the band, dealer guides band the family at 115,000-285,000 USD, and a new dealer-stock unit listed at 666,765 USD. No exact-model DS2250 used listing was live in August 2026, and new DS2500s quote mid-2027 delivery.
Why it matters
The DS2250 sits at the exact node hyperscale standby design specifies, from the OEM whose data center genset output is growing more than 120% at Mankato. Used supply is the scarcest of the big-four 2 MW machines, observed used pricing runs 162-333 USD per kW, and Series 4000 rebuild economics (35,000-65,000 USD turbos, 25,000-45,000 USD injector sets) are published for underwriting.
Who buys it
Hyperscale and colocation operators standardize on DS-series fleets; hospitals and industrial plants take singles. Rental-grade Tier 1 units serve temp power.
Role in the data center
Standby block at 2,250 kW (2,045 kW DCCP) behind the paralleling bus in hyperscale N+1 fleets; the DS line is specified by name in many data center basis-of-design documents. Fuel planning sizes to 617 L/hr at full standby load.
Key specifications
| Standby rating | 2250 kW |
|---|---|
| Data Center Continuous Power rating | 2045 kW (unlimited hours) |
| Engine | 16V4000G84S, 76.3 L V-16 |
| Bore x stroke | 170 x 210 mm |
| Speed / frequency | 1800 / 60 rpm / Hz |
| Fuel, standby 100% load | 617 L/hr |
| Fuel, standby 75% / 50% load | 467 / 325 L/hr |
| Fuel, DCCP 100% load | 558 L/hr |
| Voltages | 380 / 480 / 600 / 4160 / 12470-13800 V |
| Sound, open unit full load | 98.7 dBA at 7 m |
| Dimensions, open power unit | 6528 x 2686 x 3115 mm |
| Weight, less tank | 16429 kg |
| Emissions | EPA Tier 2; SCAQMD configuration published |
| Alternator | Brushless, PMG regulator, 300% short circuit |
| Certifications | UL 2200 optional, CSA, CE, NFPA 110 compatible |
Technical summary
Standby: 2250 kW / 2812 kVA at 60 Hz. Data Center Continuous Power: 2045 kW, unlimited hours. Engine: 16V4000G84S, 76.3 L V-16, 170 x 210 mm. Speed: 1800 rpm. Fuel, standby 100% / 75% / 50%: 617 / 467 / 325 L/hr. Fuel, DCCP 100%: 558 L/hr. Voltages: 380-13800 V. Sound, open unit full load: 98.7 dBA at 7 m. Dimensions (open): 6528 x 2686 x 3115 mm. Weight (less tank): 16429 kg. Emissions: EPA Tier 2; SCAQMD configuration published. Certifications: UL 2200 optional, CSA, NFPA 110 compatible.
Major variations
DS-series packages on the 16V4000 run DS2000, DS2250, and DS2500 with engine generations G83, G84S, and current G04-suffixed builds; a 50 Hz 16V4000G74F DS2250 is documented in UK deployment. Siblings: 12V4000 (smaller) and 20V4000 DS3250 (larger). Legacy Detroit Diesel-branded 16V4000s trade as the same platform. Tier 4 Final Series 4000 builds exist in current production.
Configurations and options
Used-market forms: open power units, enclosed packages with sub-base tanks, and rental-grade Tier 1 units. Options: 4,160 V and 13.8 kV alternators, MGC-series digital panels, jacket water heaters, and paralleling packages. DCCP-configured units carry the data center rating documentation buyers now specify.
Compatibility and dependencies
Pairs with 2,812 kVA-class paralleling or ATS gear and bulk fuel sized to 617 L/hr full-load burn. Common-rail cleanliness requirements mirror other modern platforms; ADEC/MGC electronics service through Rolls-Royce Solutions America (Mankato) and authorized dealers (Curtis, Collicutt, Wajax). SCAQMD-configured builds carry district-ready documentation.
Pricing and availability
Published price range: $325,000 - $649,900. Trend: rising Dealer guide bands run 115,000-285,000 USD for used 16V4000s with typical transactions at 145,000-235,000 USD, but all three priced Depco observations sold: 325,000 USD (Tier 2, 1,500 hours), 499,000 USD (new), and 649,900 USD (Tier 1 rental grade, 2004, 3,153 hours). New dealer stock listed at 666,765 USD in August 2026 while factory DS2500 orders quote mid-2027, the class's clearest scarcity signal. Lead time, new: 50-104 weeks. Lead time, used or refurbished: 2-10 weeks. Warranty, used: 30-day dealer typical; new stock carries factory terms.
Supply, delivery and overhaul
13 units listed without public prices.
Lifecycle and maintenance
Service cadence: oil and fuel filters at 500 hours or 12 months, air filters at 1,000 hours, annual load-bank testing. Published overhaul-interval claims conflict (one service guide cites roughly 15,000-hour majors, a dealer guide 30,000-60,000+ hours; no OEM public figure), so documented history governs valuation. Cost anchors are published: turbo replacement 35,000-65,000 USD, injector sets 25,000-45,000 USD. Mankato production and parts capacity is expanding more than 120%.
Thermal and emissions profile
DS2250 configurations certify EPA Tier 2 per the mtu spec sheets, with a current spec revision explicitly labeled for SCAQMD compliance, and Tier 4 Final Series 4000 builds exist in current production per dealer documentation. Rental-grade Tier 1 units circulate with restricted siting. Under 40 CFR 60 Subpart IIII, non-emergency units above 560 kW require the Tier 4 pathway; a 50 Hz DS2250 is documented in UK permitting under Environment Agency review.
Common failure points
- Common-rail injectors (x16) — Rough running, smoke, cylinder imbalance past 15,000 hours
- Intercooler / aftercooler — Reduced boost and derating past 9,000 hours
- Turbo wastegate actuators — Boost over/undershoot and fault codes past 12,000 hours
- Centrifugal oil filter — Bypass warnings past 8,000 hours
- Generator-end insulation — Low megger readings after storage
Inspection checklist
Engine generation: record G83 / G84S / G04 build and any Detroit Diesel branding; parts paths differ. Rating documentation: verify standby versus DCCP configuration paperwork; DCCP adds resale value. Hours: observed bench spans 0-3,153 hours; verify meter against logs. Common-rail injectors: documented failure onset past 15,000 hours; verify service on high-hour units. Intercooler / aftercooler: reduced boost and derating documented past 9,000 hours; pressure-test cores. Centrifugal oil filter: bypass warnings documented past 8,000 hours; verify service. Turbo wastegate actuators: boost faults documented past 12,000 hours; test actuation. Oil analysis: trend 2 samples; metals flag bearings, silicon flags filtration. Generator end: megger stator; below 5 megohms warrants rewind pricing. Controls: MGC panel generation and ADEC firmware support through an authorized dealer.
Procurement channels
Woodstock, Generator Source, and IronPlanet listed no DS-class units in August 2026. Legacy Detroit/MTU-branded units surface through PGE.
Regional notes
60 Hz DS-series units serve North America from Mankato production; 50 Hz G74F builds are documented in UK service. Legacy Detroit Diesel-branded 16V4000s trade as the same platform. SCAQMD-configured builds carry premium documentation for Southern California.