Caterpillar replaced the 375 with the 385B crawler excavator, which is bigger in the most significant ways. The 385B is only slightly heavier at 92 tons, but lifts 20 percent more than the 375 (peaking at nearly 70,000 pounds with general-purpose boom and standard undercarriage). A step up to the 3456 ATAAC engine boosted horsepower by 20 percent. Swing torque is up 16 percent, and with an additional 4 feet of boom reach (stretched to nearly 33 feet), the 385B is 18 percent more productive than its predecessor. Estimated price: $890,000 to $945,000.