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Cummins Generator Sets

Cummins QSZ, QSM, QSK and KTA engines are the most widely serviced heavy-duty platform in the world, which is why Cunmi builds them into 33–2,000 kVA sets for sites where downtime is not an option.

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Cummins United States diesel engines · packaged in Fujian, China
Power Range33 – 2,000 kVA
Frequency50 Hz / 60 Hz
EmissionStage V · Tier 4F · Tier 3
Engine Platform

Why specify a Cummins engine

Cummins is the benchmark for high-duty diesel power. Its QSB, QSL, QSZ, QSK and KTA families deliver proven reliability, dense service coverage and excellent fuel efficiency, which makes them the first choice for data centres, hospitals and continuous-duty industrial applications.

  • Global service network in 190 countries
  • Full-authority electronic fuel management
  • Up to 2,000 kVA at 50 Hz with paralleling options
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Cummins / Cummins engine close-up
Model Tables

Cummins powered generator sets

Every rating we list for this engine platform, with the engine model for each.

50 Hz ratings for the Cummins platform — ISO 8528-1, kW at 0.8 power factor. Each model has a downloadable data sheet (PDF); weights and drawings are issued with the quotation.
ModelStandby Power (kVA)Standby Power (kW)Prime Power (kVA)Prime Power (kW)Engine ModelData SheetQuote
CM-CU333326.430244B3.9-G12PDFEnquire
CM-CU444435.240324BT3.9-G1PDFEnquire
CM-CU44A4435.240324BT3.9-G2PDFEnquire
CM-CU55554450404BTA3.9-G2PDFEnquire
CM-CU666652.860484BTA3.9-G2PDFEnquire
CM-CU888870.480644BTA3.9-G11PDFEnquire
CM-CU11011088100806BT5.9-G2PDFEnquire
CM-CU125125100112.5906BTA5.9-G2PDFEnquire
CM-CU138138110.41251006BTAA5.9-G2PDFEnquire
CM-CU150150120138110.46BTAA5.9-G2PDFEnquire
CM-CU1651651321501206BTAA5.9-G12PDFEnquire
CM-CU2002001601801446CTA8.3-G2PDFEnquire
CM-CU2202201762001606CTAA8.3-G2PDFEnquire
CM-CU2752752202502006LTAA8.9-G2PDFEnquire
CM-CU3003002402752206LTAA9.5-G3PDFEnquire
CM-CU3303302643002406LTAA9.5-G1PDFEnquire
CM-CU358358286.43252606LTAA9.5-G1PDFEnquire
CM-CU385385308350280NTA855-G4PDFEnquire
CM-CU440440352400320QSNT-G3PDFEnquire
CM-CU500500400450360QSZ13-G5PDFEnquire
CM-CU513513410500400QSZ13-G3PDFEnquire
CM-CU650650520600480KTA19G8PDFEnquire
CM-CU688688550625500KTAA19-G6APDFEnquire
CM-CU825825660750600KTA38G2PDFEnquire
CM-CU880880704800640KTA38G2BPDFEnquire
CM-CU10001,000800900720KTA38G2APDFEnquire
CM-CU11001,1008801,000800KTA38G5PDFEnquire
CM-CU12501,2501,0001,125900KTA38G9PDFEnquire
CM-CU13751,3751,1001,2501,000KTA50G3PDFEnquire
CM-CU16751,6751,3401,4001,120KTA50G8PDFEnquire
CM-CU1675A1,6751,3401,5001,200KTA50GS8PDFEnquire
CM-CU17601,7601,4081,6251,300QSK38-G32PDFEnquire
CM-CU18751,8751,5001,6751,340KTA50-G15APDFEnquire
CM-CU20002,0001,6001,8751,500KTA50-G16APDFEnquire
60 Hz ratings for the Cummins platform — ISO 8528-1, kW at 0.8 power factor. Each model has a downloadable data sheet (PDF); weights and drawings are issued with the quotation.
ModelStandby Power (kVA)Standby Power (kW)Prime Power (kVA)Prime Power (kW)Engine ModelData SheetQuote
CM-CU35352831254B3.9-G12PDFEnquire
CM-CU55554450404BT3.9-G2PDFEnquire
CM-CU66665360484BTA3.9-G2PDFEnquire
CM-CU75756068544BTA3.9-G2PDFEnquire
CM-CU1001008090724BTA3.9-G11PDFEnquire
CM-CU11011088100806BT5.9-G2PDFEnquire
CM-CU125125100113906BT5.9-G2PDFEnquire
CM-CU1501501201381106BTA5.9-G2PDFEnquire
CM-CU1651651321501206BTAA5.9-G2PDFEnquire
CM-CU1881881501701366BTAA5.9-G12PDFEnquire
CM-CU2002001601801446CTA8.3-G2PDFEnquire
CM-CU2202201762001606CTA8.3-G2PDFEnquire
CM-CU2502502002251806CTAA8.3-G2PDFEnquire
CM-CU2752752202502006CTAA8.3-G9PDFEnquire
CM-CU3003002402752206LTAA8.9-G2PDFEnquire
CM-CU3443442753132506LTAA9.5-G1PDFEnquire
CM-CU350350280313250NTA855-G1PDFEnquire
CM-CU388388310350280NTA855-G1BPDFEnquire
CM-CU413413330375300QSM11-G2PDFEnquire
CM-CU440E440350400320QSM11-G4PDFEnquire
CM-CU440440350400320NTA855-G3PDFEnquire
CM-CU500500400450360KTA19-G2PDFEnquire
CM-CU523523418475380QSZ13-G5PDFEnquire
CM-CU550550440500400KTA19-G3PDFEnquire
CM-CU600600485550440QSZ13-G11PDFEnquire
CM-CU625625500563450KTA19-G3APDFEnquire
CM-CU688688550625500KTAA19-G5PDFEnquire
CM-CU750750600683546KTAA19-G6APDFEnquire
CM-CU850850680775620KT38-GPDFEnquire
CM-CU963963770875700KTA38-G1PDFEnquire
CM-CU10001,000800910725KTA38-G2PDFEnquire
CM-CU10381,038830938750KTA38-G2BPDFEnquire
CM-CU11001,1008801,000800KTA38-G2APDFEnquire
CM-CU12501,2501,0001,138910KTA38-G4PDFEnquire
CM-CU13751,3751,1001,2501,000KTA38-G9PDFEnquire
CM-CU15131,5131,2601,3751,100KTA50-G3PDFEnquire
CM-CU18751,8751,5001,5631,260KTA50-G9PDFEnquire

Both 50 Hz and 60 Hz builds are listed. Model codes carry the standby rating and, where two builds share a rating, a trailing letter.

Cummins ratings in the tables follow the engine maker's published standby and prime definitions, not a marketing derating. The KTA19 and KTA50 figures assume a 40 °C ambient cap; above that, expect roughly 1–2 % output per additional 5 °C and ask us for the exact curve.

Sizing a Cummins set?

Tell us the kVA, the duty class and the destination port. For QSK and KTA builds we also confirm the cooling package and exhaust arrangement before quoting, because those two items drive both the price and the container dimensions.

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Configuration Options

Three ways to package a Cummins set

The QSK and KTA families carry enough mass and heat rejection that the enclosure choice changes the installation, not just the appearance.

Cummins sets leave our Fujian plant in whichever of three packages the site calls for. KTA50 and QSK38 units almost always ship containerised, because the radiator, day tank and exhaust silencer no longer fit inside a canopy at that size. Mid-range QSZ13 and KTA19 sets go into acoustic canopies for urban standby. Smaller 4B and 6B units are frequently supplied on open skids for plant-room integration.

Cummins Container / Cummins in Container configuration
Typical power rangeUp to 4,125 kVA
Enclosure10 / 20 / 30 / 40 / 45 ft container
Ingress protectionIP54 (IP55 optional)
Best suited toKTA50 / QSK38 sets, data centres, multi-set paralleling

Full Containerized specification

Cummins Silent / Cummins in Silent configuration
Typical power range10 – 4,125 kVA
EnclosureGalvanised acoustic canopy
Ingress protectionIP54
Best suited toQSZ13 / KTA19 sets in hospitals, hotels and offices

Full Silent Type specification

Cummins Open / Cummins in Open configuration
Typical power range10 – 4,125 kVA
EnclosureNone — open skid
Ingress protectionIP21 (control panel IP54 optional)
Best suited to4B / 6B sets for plant rooms and OEM skid integration

Full Open Type specification

Cross Reference

Compare other engine brands

If the Cummins service network in your market is thin, a Mitsubishi or Baudouin platform gives similar heavy-duty behaviour with a different parts channel.

CumminsPerkinsMitsubishiMTUScaniaFPTDeutzBaudouinSDECYanmarFAWDEFG WilsonKubotaHyundaiYuchaiWeichai
multi-brand comparison visual

Already running a Cummins set?

Common Cummins parts we hold or source weekly include fuel shut-off solenoids, QSK injector kits, water pumps, belt tensioners and the PowerCommand control boards.

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Questions

Cummins sets, answered plainly

The three things buyers ask us most about this engine platform.

Both, stated clearly on the quotation. Service parts such as filters and belts are usually aftermarket from approved suppliers; sensors, injectors and control boards are genuine Cummins unless you ask otherwise.

Not on standard builds. The KTA50 is a distillate engine, so it runs on diesel or EN 590 equivalent. If you need HFO you should be looking at a Mitsubishi S16R or a dedicated heavy-fuel platform.

Typically 45 to 70 days from deposit, depending on whether the engine is in stock and whether the container needs a walk-in control room. KTA50 builds sit at the longer end.

Cummins, Perkins, MTU and all other engine brand names referred to on this page are trademarks of their respective owners. Cunmi is an independent manufacturer of generating sets powered by these engines and is not an authorised distributor of any engine brand.