BELLEVUE, Wash.--(BUSINESS WIRE)--PACCAR (Nasdaq: PCAR) is launching exciting new power, torque and fuel efficiency enhancements to its MX-13 and MX-11 engines for North America. The new engines will ...

With the launch of Kenworth’s T680 Next Generation truck model, also comes the 2021 Paccar MX-11 and Paccar MX-13 engines for Kenworth’s Class 8 truck lineup. Both engines feature re-designed internal ...

LOUISVILLE, Ky.--(BUSINESS WIRE)-- Coming off a record year of PACCAR MX engine sales in Kenworth trucks, Kenworth is anticipating even further proprietary engine adoption with the PACCAR MX-13.

The 12.9-liter PACCAR MX-13 has been substantially enhanced for 2013, changed enough that it’s being called a ‘next generation’ engine. The changes include common-rail fuel injection, more efficient ...

The 12.9L Paccar MX-13 diesel engine is built for large trucks such as the Peterbilt 579 semi and the Kenworth T880 heavy-hauler. It’s also tuned to deliver 500 hp at 1,425 rpm and 1,850 lb-ft of ...

LOUISVILLE, Ky.--(BUSINESS WIRE)--Peterbilt Motors Company showcased its latest fuel efficiency innovations during the Mid-America Trucking Show with its Model 579 EPIQ, an aerodynamically optimized ...