New Cummins powerplant offers 145- or 170-hp. ratings Engine manufacturer Cummins Inc. is sharpening its focus on the light- and medium-duty truck market with the introduction of an ISB 4-cyl. electronic diesel engine. Unveiled at the American Trucking Assns.' convention in San Diego last month, Cummins said its 16-valve electronic 4 cyl. will initially only be available for walk-in vans when it reaches the market in the first quarter of next year.
The ISB 4 cyl. offers 145- and 170-hp. models, with peak torque reaching 420 lb.-ft., and a displacement of 3.9 liters. The engine features a high-pressure common rail fuel system for better fuel efficiency at lower emission levels, and vertically centered fuel injection for more uniform piston/ring temperatures, improving durability and overall unit life cycle.
Other specs include clutch engagement torque of 275 lb.-ft.; 3.4-gal. oil system capacity; and overall net dry weight of just 773 lb.
According to Cummins, the four-valve design also contributes to better performance, with two intake and two exhaust valves allowing for freer engine "breathing" and improved air-fuel mixture. The engine also features a wastegated turbocharger and a 50% reduction in engine noise.
The engine's electronic package allows for faster and more accurate diagnosis of engine problems, in addition to collecting trip information data.
The 4-cyl. ISB will be fully backed by the engine maker's New Product Customer Care initiative, providing on-call technical service 24 hours a day, 7 days a week, to help Cummins customers diagnose and correct any problems.
Goodyear has expanded its Wingfoot line of medium-duty truck tires by adding a drive traction radial DTR model. The Wingfoot DTR has a 22/32nds non-skid tread with a computer-optimized pattern for better road-gripping ability. Shoulder bars stabilize the DTR's tread contact areas, reducing the risk of uneven wear and maximizing tread life, says Goodyear.
The tire is rated Load Range G and is currently available only in the 295/75R22.5 size. Three other sizes - 11R22.5, 11R24.5 and 285/75R24.5 - are scheduled for production this fall.
The Wingfoot line of tires - the DTR and the Wingfoot APR all-position radial, which was introduced last year - are designed for the "cost-conscious customer who needs a drive tire with the ability to grip the road," says Mike Thomann, Goodyear's marketing director for commercial tires.
Cole Hersee says its new 956 Series anti-restart ignition switches protect starter motors from damage caused by an operator restarting an already running engine. The switches allow the ignition to turn to the "restart" position only from the ignition system's "off" position. So, if the operator wants to restart for some reason, he is forced to turn the engine off first. The safeguard device can be retrofitted to any type of vehicle.
D-A Lubricant has added a new hydraulic fluid, Hydra Z, to its product line. It is formulated for off-road construction equipment where CF heavy-duty diesel oils are recommended and preferred, and where 900 ppm of zinc are required. For more information, visit their web site at www.dalube.com.
