MTU (Rolls-Royce) 16V4000 DS2250
2,250 kW standby diesel genset on the mtu Series 4000 V-16, the data center DS line flagship
MTU (Rolls-Royce) 16V4000 DS2250 is one of 10 data center generators tracked in the SecondWatt catalogue, each with specifications, lead times and indicative secondary-market pricing.
MTU (Rolls-Royce) 16V4000 DS2250 generators — specifications, pricing tiers, and availability on SecondWatt.
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, so price discovery (162-333 USD per kW observed) is worth publishing, and Series 4000 rebuild economics (35,000-65,000 USD turbos, 25,000-45,000 USD injector sets) are documented for underwriting.
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.
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
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: up 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.
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 Emissions nameplate — Tier 1 rental-grade versus Tier 2 versus SCAQMD configuration changes siting and price Coolant — verify service; annual load-bank compliance in records Batteries and charger — replace banks past 4 years; test starters Load test — 4-hour run to 2,250 kW (or 2,045 kW DCCP) at temperature Records — complete service logs; conflicting overhaul-interval claims (15,000 vs 30,000+ hours) make documented history decisive
Procurement channels
Woodstock, Generator Source, and IronPlanet held no DS-class units at review. 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.