The Cummins/Onan QSV91 series is a 91.6 L turbocharged low temperature aftercooled engine. It powers generator sets from Cummins/Onan, including the C2000 N5C, C2000 N6C and QSV91.
Also known as: Cummins QSV91 series
Part of the Cummins/Onan QSV91 engine family — 2 variants share parts & fitment.
| Displacement | 91.6 L |
|---|---|
| Aspiration | turbocharged low temperature aftercooled |
How to read your Cummins/Onan engine serial & model number →
Compiled from service & troubleshooting documentation across every generator set that uses the Cummins/Onan QSV91 series.
| Part # | Description | Category |
|---|---|---|
| QSK60-G9 | Engine model for C2500 D5A generator sets | Engine |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Cummins/Onan QSV91 series has a displacement of 91.6 liters.
The Cummins/Onan QSV91 series powers 3 generator set(s), including Cummins/Onan C2000 N5C, Cummins/Onan C2000 N6C, Cummins/Onan QSV91.
A commonly reported issue on generators using the Cummins/Onan QSV91 series is: Speed Signal Lost (Loss of Speed Sense).