Model family · Cummins QSK19
Cummins QSK19
The QSK19 family, in the same 19-litre class as the K19: a listed band of 340–597 kW, with named variants from the C455 at 340 kW to the C675 at 503 kW.
The QSK19 is the K19 family's sibling line, in the same 19-litre class. Its listed band is 340–597 kW, and the catalogue's table names variants from the C455 at 340 kW to the C675 at 503 kW, quoted at 1,800–2,000 rpm. Note the shape of that data: the named variants reach 503 kW while the family band is stated to 597 kW, and no variant is named for the band's top. If your project needs the upper part of the band, name the requirement in the enquiry and have the exact variant confirmed.
Keep the two documents separate in your own reading as well: a family band is a range statement, and the variant row in a written quote is what you buy against. QSK19 enquiries should therefore always carry the variant code or, where the project is new, the required rating, speed and duty so the correct variant can be confirmed.
Listed range at a glance
| Model / line | Details on record |
|---|---|
| Family band | 340–597 kW · 19 L class |
| QSK19-C455 | 340 kW · lowest named variant on record |
| QSK19-C675 | 503 kW · highest named variant on record, at 1,800–2,000 rpm |
| Band above C675 | The stated band reaches 597 kW; no variant is named for the upper band — ask which variant serves it |
| Sibling family | K19 family: 335–522 kW listed table — see its own page |
Enquiring for a QSK19
Give the variant code if you have one (from the engine plate or project specification), plus application and duty. If the project targets the part of the band above the named C675, say so explicitly and require the variant designation and its rating row to be stated in the quote — that is precisely the case where band-level language is not enough. For replacements, the plate designation decides between the QSK19 and K19 tables; the families share a displacement class, not a parts or ratings table.
As with the K19, confirm the rating basis for genset duty (standby versus continuous) and the scope of supply for this size class in writing before you order. Delivery and warranty follow the complete-engine terms on record; have them restated for your variant in the quote.
How buyers spec this line
- Band (340–597 kW) and named variants (to C675, 503 kW) are printed as listed — the gap is flagged, not filled.
- Quote the variant code; replacements follow the plate, not the displacement class.
- Confirm rating basis and scope for this size class in writing.
- K19 and QSK19 tables are separate documents.
Terms on record
Listed terms on record: complete engines and power units carry a delivery window of 15–30 days and a warranty of 1 year or 1,200 hours, whichever comes first, as published in the supplier's FAQ. Confirm the exact rating, scope of supply and delivery window for your model before you order.
Buyer questions
Why does the band exceed the top named variant?
Because that is how the catalogue states it: band 340–597 kW, named variants to the C675 at 503 kW. Ask in your enquiry which variant serves the upper band.
Is the QSK19 interchangeable with the K19?
No. They are sibling families with separate tables. Enquire under the designation on your plate.
What speeds are QSK19 ratings quoted at?
The named variants are listed at 1,800–2,000 rpm.
Related lines
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