The Cummins/Onan H36D400 is a 5.9 L 6-cylinder direct injection engine rated at 1800 rpm, producing up to 124 kW. It powers generator sets from Cummins/Onan, including the 75MDGDB and 95MDGDB. It holds 15 L (4.0 gal) of oil and 21 L (5.5 gal) of coolant.
Also known as: Cummins Power Generation H36D400
| Oil capacity | 15.0 L |
|---|---|
| Coolant capacity | 21.0 L |
| Displacement | 5.9 L |
| Cylinders | 6 |
| Aspiration | Direct Injection |
| Rated speed | 1800 rpm |
| Gross power | 124 kW |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Cleaner | — | 1000 hr | ||
| Fuel filter | Fuel Filter | — | 500 hr | ||
| Oil filter | Full Flow Lube Oil Filter | — | 1000 hr | ||
| Battery | Battery | — | 500 hr | ||
| Belt | Mechanical Fuel Lift and Transfer Pump with Manual Priming Lever | — | 1000 hr | ||
| Coolant | Coolant | 21.0 qt | — | ||
| Oil | Lubricating Oil | 15.0 qt | — | ||
| Spark plug | Spark Plug | — | 1000 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Cummins/Onan H36D400 engine has an oil capacity of 15.0 liters.
The Cummins/Onan H36D400 has a displacement of 5.9 liters with 6 cylinders.
The Cummins/Onan H36D400 powers 2 generator set(s), including Cummins/Onan 75MDGDB, Cummins/Onan 95MDGDB.