Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | 100 AH | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan 6CTA series is a 8.3 L 6-cylinder turbo charged engine. It powers generator sets from Cummins/Onan, including the C175 D6, C180 D6, C200 D5 and C200 D6.
Also known as: Cummins 6CTA series
Part of the Cummins/Onan 6CTA engine family — 2 variants share parts & fitment.
| Displacement | 8.3 L |
|---|---|
| Cylinders | 6 |
| Aspiration | turbo charged |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Battery | 100 AH | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| X-577-34 | Hose 24" | hose |
| X-577-39 | Hose 4" | hose |
| X-577-43 | Hose 50" | hose |
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 6CTA series has a displacement of 8.3 liters with 6 cylinders.
The Cummins/Onan 6CTA series powers 7 generator set(s), including Cummins/Onan C175 D6, Cummins/Onan C180 D6, Cummins/Onan C200 D5, Cummins/Onan C200 D6, Cummins/Onan C220 D5.