The Cummins/Onan LRG4251 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 |
|---|---|---|
| 7-11 | BATTERIES | Battery |
| 7-10 | IGNITION SYSTEM | Service part / kit |
| 7-12 | ALTERNATOR | Service part / kit |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.