Mack Trucks

Mack Trucks has unveiled the Titan. Aimed at both off-highway and on-highway heavy-hauling applications such as logging and heavy-equipment transport, it is the only Mack model powered by the OEM's new 16L MP10 diesel engine, which produces up to 605 hp. and peak torque of 2,060 lbs.-ft. The Titan is available in both truck and tractor configuration, and Mack says initial deliveries are scheduled for this year.

The 16L MP10 is an inline 6-cylinder engine certified for the 2007 emission regulations and offered in ratings of 515, 565 and 605 hp. Maximum torque ranges from 1,860 to 2,060 lbs.-ft. at 1,200 rpm. The Mack T300ES transmission can be spec'd with 10, 13 or 18 speeds; Eaton transmissions are optional.

The truck features a long hood and high cab with an aggressive “heavy-hauler” design that features high airflow for better cooling and chrome accents, the company says. Rounding out the Titan's specs is Mack's Cornerstone chassis, originally developed for its Granite vocational truck models. The Titan's Cornerstone chassis is available in three frame-rail thicknesses with optional inside channel reinforcements and application-specific crossmembers. The front axle is positioned for high load capacity (12,000 to 20,000 lbs.) and maneuverability, according to Mack. Available rear axle and suspension capacities range from 38,000 to 65,000 lbs. The Titan cab, which sits on an air-ride suspension, was designed to minimize noise and vibration for the driver.

Peterbilt Motors Co.

Peterbilt has unveiled the Model 320 Hydraulic Launch Assist (HLA) truck that is engineered specifically for stop-and-go refuse applications. The hybrid vehicle will improve fuel economy, reduce emissions and reduce annual brake realignment service, the OEM says. The truck uses HLA technology developed by Eaton Corp.

HLA technology recovers up to 75 percent of the energy normally lost as heat during braking and storing the energy as pressurized hydraulic fluid. This fluid is stored in an onboard accumulator until the driver accelerates the vehicle. The OEM says the system captures the truck's kinetic energy while braking to help launch and accelerate the vehicle, improving fuel economy and reducing annual brake realignment services.

The OEM also is now offering its ComfortClass system on Peterbilt Model 365, 367, 384, 386, 388 and 389 trucks equipped with a 63-in. Unibilt sleeper; it had earlier been introduced on trucks with 70-in. sleepers. According to Peterbilt, ComfortClass provides a temperature-controlled environment and the capacity to run electronic devices in the sleeper for up to 10 hours without running the engine.

Peterbilt also has added a new proprietary front air-leaf suspension. The suspension has a lower spring rate for better isolation of road inputs while maintaining the roll stiffness and handling performance of a taperleaf suspension, the company says. It is available on Models 384, 386, 388 and 389.

Sterling Truck Corp.

Sterling Truck Corp. has launched its first natural gas-powered vehicle, a Set-Back 113 tractor model equipped with a Cummins Westport ISL G engine. According to the OEM, the factory-built truck is ideal for port operations, natural gas utilities and municipalities, and can save up to $6,000 in fuel and operating costs a year per truck. The OEM notes customers in states such as California will benefit from tax incentives for alternative fuel vehicles and that accessibility to natural gas fuel is on the rise.

According to Sterling, the Cummins Westport ISL G, an 8.9L stoichiometric cooled-exhaust gas recirculation engine, is available in ratings up to 320 hp. and already meets the U.S. EPA's 2010 emissions standards.