The Cummins/Onan MDKBN is a 1.5 L 4-cylinder 4-cycle, idi water-cooled diesel (max fuel lift 1.22 m / 4 ft; max raw water lift 1.22 m / 4 ft) engine rated at 1500 rpm, producing up to 13.5 kW. It powers generator sets from Cummins/Onan, including the 11.0MDKBN and 13.5MDKBN. It holds 4.3 L (1.1 gal) of oil and 5 L (1.3 gal) of coolant.
Also known as: Cummins MDKBN
| Oil capacity | 4.3 L |
|---|---|
| Coolant capacity | 5.0 L |
| Displacement | 1.498 L |
| Cylinders | 4 |
| Aspiration | 4-cycle, IDI water-cooled diesel (max fuel lift 1.22 m / 4 ft; max raw water lift 1.22 m / 4 ft) |
| Rated speed | 1500 rpm |
| Gross power | 13 kW |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Belt | — | ||||
| Coolant | Coolant capacity 5 L (5.3 qt) | 5.0 L | — | ||
| Oil | Lube oil capacity 4.3 L (4.5 qt) | 4.3 L | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Step-by-step procedures compiled from the Cummins/Onan service manual for this engine.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | No. 2 diesel fuel | Typical fuel consumption values are for No. 2 diesel fuel |
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 MDKBN engine has an oil capacity of 4.3 liters.
The Cummins/Onan MDKBN has a displacement of 1.498 liters with 4 cylinders.
The Cummins/Onan MDKBN powers 2 generator set(s), including Cummins/Onan 11.0MDKBN, Cummins/Onan 13.5MDKBN.