Kenworth will install the new PACCAR PX-6 and PX-8 medium-duty engines in Kenworth's conventional Class 6 and 7 vehicles in January 2007.
"The new PACCAR PX-6 and PX-8 medium-duty engines are an exciting, major product addition for Kenworth customers starting in 2007," said Bob Christensen, Kenworth general manager and PACCAR vice president. "The new PACCAR engines will provide customers with an integrated engine and chassis solution to complement Kenworth's outstanding T300 Class 6 and 7 vehicles."
The 6.7-liter PACCAR PX-6 engine, which will be offered in both Class 6 and Class 7 configurations, will be available in ratings ranging from 200 to 325 horsepower and 520 to 750 ft-lb of torque. The PACCAR PX-6 engine has a 2-year warranty with unlimited miles.
"The PACCAR PX-6 is the 'efficiency' engine with its high-power density and the highest power to weight ratio in the industry," said Kenworth Chief Engineer Mike Dozier.
The 8.3-liter PACCAR PX-8 engine will be available in ratings ranging from 240 to 330 horsepower and a torque range of 660 to 1,000 ft-lb in addition to a 360 horsepower version for emergency vehicles. The engine will be available in the Class 7 configuration and the tandem axle Kenworth T300. The PACCAR PX-8 engine comes with a 2-year, 250,000-mile warranty.
"The PACCAR PX-8 is the 'power and torque' engine," said Dozier. "Many medium-duty customers have expressed their desire for more power. The 1,000 ft-lbs of torque translates to improved throttle response and acceleration."