Kenworth bolstered its data book with the addition of the 8.9-litre Cummins ISL engine. At 310 to 350 horsepower and 1,050 to 1,250 foot-pounds of torque, KW hopes the engine is popular in short-hood T800 and W900S models for vocational and pick-up and delivery applications.
The ISL doesn’t use exhaust-gas recirculation to comply with current emission standards set by the U.S. Environmental Protection Agency. Indeed, it doesn’t comply–instead, Cummins will apply “credits” from other compliant engines it sells in order to avoid EPA fines. The ISL also weighs about 500 pounds less than competitive engines.
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