Every mechanic knows, simpler is better. That's why Cummins QSK23 has an in-line 6-cylinder configuration, versus the competition's V-12.
And every foreman knows, the less time an engine spends in service, the more productive it is on the job. That's why Cummins QSK23 engines require oil and oil filter changes every 250 hours or 6 months.
When service is needed, the oil pump, water pump and accessories are all front-mounted and easy to reach.
For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.