May 1, 2003 12:00 PM

Kenworth is expanding its Extended Service Interval (ESI) option package to its T600, T800, and W900 models for on-highway applications.

The three-year, 350,000-mile ESI package has been available as an option for the T2000 since its introduction. Owners will be able to extend the vehicle's base warranty from one-year/100,000 miles to three years/350,000 miles, for a cost of $1,600, or $0.0046 per mile.

Components covered under the ESI option include the Bendix air system, Delco alternator and starter, Dana Spicer drivelines, front axle and rear axle, and Eaton Fuller clutch and transmission. Also included are Kenworth rear air suspension and radiator/charge air cooler systems.