Offering a compact, lighter-weight design, the Cat AP500E and AP555E asphalt pavers can be easily hauled with other jobsite equipment. When equipped with the AS2252C screed, the machine weighs 33,715 and 35,290 pounds, respectively; with the AS3251C screed, it weighs 34,220 and 35,810 pounds. The pavers are powered by four-cylinder, 142-horsepower Tier 3 Cat C4.4 diesel engines with ACERT technology.