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Cummins QST30G5

In Production

Cummins QST30G5 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 1 row(s) across 60Hz with 30 L displacement, 12V cylinders, liquid-cooled cooling, and U.S. EPA Tier 2 emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.

Overhaul & repair parts
Manufacturer files
No datasheet
Last updated
2026-08-05
Package route
diesel generator sets
Standby Power · 60 Hz
1,250 kVA
Electrical Output
1,000 kWe
Cylinders
V12
Displacement
30 L
Rated Speed
1,800 RPM

Power Ratings

kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf

60 Hz1800 RPM

kWmkWekVA
Prime Power1007910—
Standby Power11121000—

Ask about Cummins QST30G5

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Cummins QST30G5 overhaul & repair parts

Already running a Cummins QST30G5? Start with the parts you need, then send your nameplate so we can help check the right references for your engine.

Which parts do you need?

Reviewed part-number references

A starting point for identification. Fitment must be confirmed before ordering.

  • Oil filter4367100

    Oil filter

    Fitment check: The archived source and independent QA bind complete model QST30G5 and printed part number 4367100 in the cited bounded record. Private equipment-manufacturer evidence. Confirm engine serial number, CPL/build, installed filter head, and current Cummins or Multiquip catalog before ordering. Source quantity was not imported.

    Source: Multiquip DCA1100SSC 60 Hz Generator Parts Manual, Rev. 0

  • Fuel filter4010476

    Fuel pre-filter

    Fitment check: The archived source and independent QA bind complete model QST30G5 and printed part number 4010476 in the cited bounded record. Private equipment-manufacturer evidence. Confirm engine serial number, CPL/build, installed fuel system, and current Cummins or Multiquip catalog before ordering. Source quantity was not imported.

    Source: Multiquip DCA1100SSC 60 Hz Generator Parts Manual, Rev. 0

  • Air filterS7000647

    Element, air cleaner, outer

    Fitment check: The archived source and independent QA bind complete model QST30G5 and printed part number S7000647 in the cited bounded record. Private equipment-manufacturer evidence. Confirm engine serial number, CPL/build, installed housing, and current Cummins or Multiquip catalog before ordering. Source quantity was not imported.

    Source: Multiquip DCA1100SSC 60 Hz Generator Parts Manual, Rev. 0

Selected references only; this is not a complete overhaul list or a stock listing.

Let’s identify the right parts.

The model is the starting point. Serial numbers and build configurations can change which parts fit.

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Shareable spec cardCummins QST30G5 summary imageOpen image
Cummins QST30G5 30L L12, turbocharged aftercooled diesel generator engine — 1,250 kVA standby specifications

Cummins QST30G5 generator set context

The Cummins QST30G5 is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 1,250 kVA / 1,000 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.

Also searched as

qst30g5Cummins QST30G5

Technical Specifications

BrandCummins
ModelQST30G5
ConfigurationL12, turbocharged aftercooled
Cylinders12
Displacement30 L
Fuel TypeDiesel
Ignition TypeCompression Ignition
Cooling MethodLiquid-Cooled
Emissions StandardU.S. EPA Tier 2
CertificationsU.S. EPA Tier 2
Country of OriginUnited States

Frequently asked questions

What is the power output of the Cummins QST30G5?

The Cummins QST30G5 is rated at 1,250 kVA standby / 1,138 kVA prime at 60 Hz (1,800 rpm).

Does the QST30G5 run at 50 Hz or 60 Hz?

The Cummins QST30G5 is rated for 60 Hz (1,800 rpm).

What fuel does the Cummins QST30G5 use?

The Cummins QST30G5 is a diesel generator-set engine.

What is the displacement and cylinder configuration of the QST30G5?

The Cummins QST30G5 is a V12 (12-cylinder) engine with a displacement of 30 L.

What emissions information is listed for the QST30G5?

This record lists U.S. EPA Tier 2 for the Cummins QST30G5. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.

What is the catalog status of the Cummins QST30G5?

The Cummins QST30G5 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.

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