Tier 4-Final upgrades to the Cat 390F and 374F excavators include the Cat ACERT C15 with 472 horsepower in the 374F and the C18 with 524 horsepower in the 390F.
The 323F L excavator has a 161-horsepower C7.1 engine, which gives it 9 percent better fuel efficiency than the E Series predecessor.
The 303E CR expands Caterpillar’s line of mini excavators, with the new machine offering an operating weight of 7,782 pounds.
E20 compact excavator replaces the 324 model. The 13.9-horsepower, Tier 4-compliant unit has maximum reach of 14 feet
Cat 303.5E2, 304E2, 305E2, 305.5E2 and 308E2 are updates of the E Series excavators.