Cummins engines were dominant in agriculture long before their debut in heavy-duty trucks. The 12-valve 5.9-liter Cummins I-6 engine was developed and installed in Dodge pickups starting in 1989 ...

The essential yet underrated component of the 5.9 Cummins engine system is the 5.9 Cummins valve cover. Premium valve covers create two benefits: protection against expensive engine damage and ...

Among engine manufacturers, Cummins is ... engine started with 12 valves, but later generations saw improvements such as the ...