The Cummins/Onan 6BTAA5.9-G5 is a 5.9 L engine rated at 1500 rpm. It powers generator sets from Cummins/Onan.
Also known as: Cummins 6BTAA5.9-G5
Part of the Cummins/Onan 6BTAA5.9 engine family — 9 variants share parts & fitment.
| Displacement | 5.9 L |
|---|---|
| Rated speed | 1500 rpm |
How to read your Cummins/Onan engine serial & model number →
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| valve clearance | Check | 2000 hr | B-Series (4BT3.3): valve clearance checks not required for 2000 hours, twice the industry standard | |
| engine overhaul | Other | 20000 hr | QSK23-Series: expected life cycle to 20,000 hours before first overhaul |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
The Cummins/Onan 6BTAA5.9-G5 has a displacement of 5.9 liters.
The Cummins/Onan 6BTAA5.9-G5 powers 1 generator set(s), including Cummins/Onan 6BTAA5.9-G5.