Freightliner Cascadia 113 is equipped with a Cummins Westport ISX12 G heavy-duty natural gas engine—rated up to 400 HP/1,450 lb.-ft. torque and available with a 48-in. sleeper cab and factory-installed CNG fuel tanks with up to 190 diesel gal. equivalent (DGE) capacity. Factory-installed LNG tanks are also available in configurations allowing up to 300 gallons, or 140 DGE, capacity.
Freightliner 114SD natural gas truck for severe-duty vocational applications is equipped with a Cummins Westport ISL G natural gas engine rated up to 320 HP/1,000 lb.-ft. torque. The 114SD with natural gas is designed for severe duty segments such as dump, mixer, crane, municipal, refuse and sewer vac customers.
Freightliner M2 112 natural gas truck is equipped with the Cummins Westport ISL G natural gas engine rated up to 320 HP/1,000 lb.-ft. torque and is best suited for regional distribution tractor applications, as well as pick up and delivery, food and beverage, municipal, refuse, and utility applications.
Kenworth Truck Co. offers two natural gas-powered engine platforms—the Cummins Westport ISX12 G for heavy-duty models and the Cummins Westport ISL9 G for medium-duty models.
In addition, the fuel-efficient Kenworth T680 is now available as a natural gas truck in day cab, 52-in. mid-roof sleeper and 76-in. sleeper configurations for line-haul and regional haul applications. The T680 natural gas offering includes an integrated powertrain package featuring the ISX12 G and the Eaton UltraShift PLUS automated transmission.
The Kenworth W900S and Kenworth T440 chassis are available with the Cummins Westport ISL9 G. Both trucks are primarily for vocational applications such as mixers, plows, water tenders and various field service trucks. The T440 can also be spec’d as a heavy Class 7 truck with a GCW rating of 33,000 lbs.
Mack offers the Pinnacle AB with the ISX-G Cummins Westport engine and various options for both CNG and LNG fuel tanks, as well as the Cummins Westport ISL-G in TerraPro with fuel tanks installed by the body builder.
Horizontal and vertical exhaust options are available to spec; transmissions include manual and automatic gearboxes; and various wheelbase configurations are available.
Navistar offers a CNG International TranStar with Cummins Westport ISLG engine for the Class 6 to 7 market. The Cummins Westport ISL G Natural Gas Engine offers 320 HP and 1,000 lb.-ft. of torque. The TranStar is outfitted with an Allison 3000 Series (HS) automatic six-speed transmission with double overdrive.
The TranStar also touts 6×4 and 4×2 axle configurations, as well as a set-back axle with up to 50-degree wheel cut for improved handling and a tightest turning radius. Both the 6×4 and 4×2 offer a 75-gal. diesel gallon equivalent fuel tank. The 6×4 fuel tank is mounted on the back of the cab, while the 4×2 fuel tank is mounted under the cab.
Peterbilt recently announced that the Eaton UltraShift PLUS and Cummins Westport ISX12 G powertrain combination is available for Peterbilt Models 579, 567 and 365, which followed up Peterbilt’s announcement at the Mid-America Trucking Show in March that its on-highway Model 579 and vocational Model 567 were available in natural gas configurations. The Eaton UltraShift PLUS is available in the 13-speed MHP and 10-speed LAS series and the 11.9-liter Cummins Westport ISX12 G is available up to 400 HP and 1,450 lb.-ft. of torque.
The 579 and 567 vehicles comply with all EPA 2013 and CARB emissions regulations and will be available with the following ratings: 320 HP @ 1,150 lb.-ft.; 330 HP @ 1,250 lb.-ft.; 1,350 lb.-ft. and 1,450 lb.ft.; 350 HP @ 1,350 lb.-ft. and 1,450 lb.-ft.; 385 HP @ 1,350 lb.-ft.; and 400 HP @ 1,450 lb.-ft.
Volvo Trucks offers natural gas-powered daycab and sleeper versions of its Volvo VNM and Volvo VNL on-highway models. The Volvo VNM is available as a daycab, 430 sleeper or 630 sleeper, and powered by a Cummins Westport ISL G engine. The Volvo VNL model is available as a daycab, 430 sleeper, 630 sleeper or 670 sleeper, and powered by a Cummins Westport ISX12 G engine. Customers can choose a manual transmission, Allison automatic or Eaton UltraShift Plus. Volvo is continuing its development of the D13-LNG compression ignition engine and anticipates availability in 2015.