The new 45.2 ton capacity Cat 745 Articulated Truck improves operator comfort, safety and operating ease. Bonded rear quarter glass in the ROPS eliminates the structural pillar and boosts visibility. Inside the cab, sound levels are 5 dB lower than in the previous 745C. The Cat C18 ACERT engine, rated at 504 HP (375 kW), meets U.S. EPA Tier 4 Final/EU Stage IV emissions standards. A new economy mode cuts fuel consumption an average of 5 percent when the truck is not required to operate at full payload.