The Cummins/Onan QSV91 engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| 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.