LNG Short Hood Day Cabs Have the 11.9-liter ISX12 G Engine
Illinois-based Dillon Transport is adding 25 Kenworth T800 short hood day cab tractors powered by the new Cummins Westport ISX12 G heavy duty natural gas engine to its 450-plus fleet starting this summer, reports Kenworth parent Paccar.
The trucks are being handled by MHC Kenworth-Dallas, says Dillon’s Phil Crofts. Dillon has historically been a Peterbilt operator, he told F&F.
Dillon plans to operate the 25 Kenworth T800s out of its Dallas terminal. They’ll haul asphalt, sand and other raw bulk products, Kenworth says. The trucks are specified with both a 72- and a 150-gallon LNG (liquefied natural gas) tank to provide a range of approximately 650 miles.
The trucks are expected to make two 600-mile round trips per day in a driver slip-seat operation. Liquefied natural gas fueling “will typically be done twice a day at the Clean Energy station located at Dillon Transport’s Dallas terminal,” states a release.
No DEF Required
“The new ISX12 G offers an excellent natural gas option for those regional, refuse and pickup and delivery applications that need a little more power and torque than the 8.9-liter Cummins Westport ISL G,” Kenworth national specialty sales manager Andy Douglas says in the company announcement.
Kenworth notes that the new natural gas engine uses a maintenance-free, three-way catalyst and does not require a diesel exhaust fluid (DEF) tank, diesel particulate filter (DPF), nor selective catalytic reduction (SCR) technology. Kenworth offers the ISX12 G in ratings to 400-hp and 1,450 ft-lb. torque.
The 385- and 400-horsepower versions of the ISX12 G are to begin shipping in August. Trucks powered by the ISX12 G van run on LNG or CNG – compressed natural gas.
‘Potential to Realize Significant Reductions in Fuel Costs and Emissions’
Kenworth offers the ISX12 G for its T660, T800 short hood (116.5-inch BBC) and W900S models. For heavier applications, Kenworth offers the standard hood T800 (122.5-inch BBC) with the Westport HD engine and LNG fuel system by Westport Innovations. The Westport HD system includes a 15-liter Cummins ISX-based engine with high pressure direct injection technology allowing maximum displacement of pilot diesel fuel by natural gas while maintaining the diesel cycle.
“With the right spec’ing choices, many operators have the potential to realize significant reductions in fuel costs and emissions, particularly if they’re replacing older diesel trucks with new Kenworth trucks powered by natural gas,” Douglas said.
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Source: Paccar-Kenworth with Fleets & Fuels follow-up