Columbus told us that the Sigmas use oversized injector lines and 16mm plungers instead of the 12mm versions you'd normally find in a Bosch P7100. As engine rpm increases, the window of time you must ...

The black ’15 Chevrolet Silverado 2500HD work truck we encountered at Dunks Performance in Springfield, Oregon, is the typical calling card of a successful turf business. It is used every workday to ...

The second generation of 5.9L Cummins engine from 1994 to 1998 is one of the most desirable diesel engines – largely used in Dodge Rams — due to their power and durability. This is in part due to the ...

High-pressure common rail fuel (HPCR) systems are standard on nearly every diesel engine today, from heavy equipment to over-the-road trucks, light-duty trucks, large generators and more. HPCR fuel ...

When the fifth-generation Ram HD pickup debuted for the 2019 model year, it brought with it a raft of updates, including a revamped Cummins 6.7-liter inline-six diesel engine offering the Ram a ...

Getting your engine timing right can make the difference between a smooth, powerful ride and frustrating performance issues. From aligning timing marks to adjusting distributors or diesel injector ...

At Diesel Specialties we have been working on diesel fuel systems for over 40 years. We are factory trained and authorized to work on Robert Bosch, Delphi, Stanadyne, Zexel and Ambac fuel systems. We ...

Diesel engines offer tons of torque allied with impressive fuel economy, but they tend to be noisier and less refined than ...