The Cummins/Onan B6.7 is a 6.7 L 6-cylinder variable geometry turbo engine rated at 2600 rpm, producing up to 155 kW. It powers generator sets from Cummins/Onan, including the B6.7 CoolPac. It holds 359 L (94.8 gal) of coolant.
Also known as: Cummins B6.7
Part of the Cummins/Onan B6.7 engine family — 3 variants share parts & fitment.
| Coolant capacity | 359.0 L |
|---|---|
| Displacement | 6.7 L |
| Cylinders | 6 |
| Aspiration | Variable Geometry Turbo |
| Rated speed | 2600 rpm |
| Gross power | 155 kW |
How to read your Cummins/Onan engine serial & model number →
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | *With a 19-quart oil pan. Duty-cycle dependent. | — | 2000 hr | ||
| Oil filter | *With a 19-quart oil pan. Duty-cycle dependent. | — | 2000 hr | ||
| Oil | *With a 19-quart oil pan. Duty-cycle dependent. | — | 1000 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Temperature | Aftertreatment low load operation | -25 | ºC | low load operation |
| Temperature | Cooling system LAT capability | 50 | ºC |
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 B6.7 has a displacement of 6.7 liters with 6 cylinders.
The Cummins/Onan B6.7 powers 1 generator set(s), including Cummins/Onan B6.7 CoolPac.
The Cummins/Onan B6.7 oil change interval is every 1000 hours.