Kenworth introduced the Paccar TX-12 PRO automated transmission for Classes 6-7 and light Class 8 vocational applications at Work Truck Week in Indianapolis, Ind.  

The transmission is available with select Kenworth Class 8 models, including the T680 and T880 equipped with the Paccar MX-11 or Paccar PX-9 engines. It will be available for Kenworth Classes 6-8 medium duty models, including the T280, T380, and T480 equipped with the Paccar PX-9 engine later this year. The TX-12 PRO is engineered to operate with all MX-11 and PX-9 engine ratings – up to 445 hp, 1,700 lb.-ft. of torque, and 70,000 pounds of gross combination vehicle weight (GCVW).

The TX-12 PRO features many of the TX-18 PRO’s capabilities for vocational and select off-highway applications, including Paccar’s extreme duty clutch for improved low-speed maneuvering, rock free mode to help trucks get unstruck in mud or sand, an off-highway calibration tuned for changing soil conditions. The 12-speed gear set provides wide ratio coverage.

The TX-12 PRO offers dual PTO openings – a bottom mount 8-bolt and 4-bolt rear mount for a combined 95 hp capacity. Oil maintenance intervals are 250,000 miles, and the clutch is maintenance-free.