An examination of the Cummins X12 engine   The argument has been under discussion for ages. Does size matter? Well, if you like great performance, power, and a ton of torque, the answer is a resounding no. at least in the area of diesel engines.   The X12 was developed exclusively for cars where the X15 has more power than is needed ...

Cummins offers the 450-hp ISX12 for the linehaul and regional truck sectors.   Since the L10 and M11 in the 1980s, Cummins has been a pioneer in the development of smaller heavy-duty engines, also referred to as medium-bore engines, ranging in size from 10- to 13 liters.   Two 450-hp ISX12 ratings are now available from Cummins Inc. ...

Heavy Duty Cummins ISX 12 Engine's Reliability   The ISX12 is the heavy-duty Cummins engine you’ve been looking for.   In work vehicles employed in the construction and other industries, the fuel economy has increased by 12%, while in regional applications, it has increased by 5%.   Since its first release in 2010, the heavy...