Nov 1, 2004 12:00 PM

Western Star Trucks is providing the Cat C15 engine rated at 600 and 625 horsepower in select models. For heavy-haul and severe-duty applications, the engine can be paired with Western Star's new 1,570-square-inch radiator. The new engine ratings are available for 2005 production on the 6900 XD, 4900 EX, and 123" BBC 4900 FA and 4900 SA.

To accommodate a higher gross combination weight rating, the 4900 SA 123" BBC also is available with a new 1,570-square- inch radiator for demanding jobs, such as off-road vocational applications requiring a higher cooling capacity and torque. The available 1,450-square-inch radiator is suitable for operating primarily on-highway applications.

The Cat C15 625-hp engine supplies 2,050 ft-lb of torque at 1,200 rpm for extreme heavy-duty applications. The 600-hp engine, which delivers 1,850 ft-lb of torque, is for operators looking for a high horsepower with a lower-cost driveline. Equipped with Caterpillar's ACERT Technology, the engine meets 2004 Environmental Protection Agency standards.