The International 4300 truck has a wheelbase from 128 to 254 inches, is powered by an International DT466 engine and uses either hydraulic or air brakes. The medium-duty track is marked as 4300 on the doors.
The 4300 model is a medium-duty truck that comes with Fuller 6- or 7-speed manual transmissions or Allison 2000 and 3000 Series automatic transmissions. Its front axle capacity is from 8,000 to 14,000 pounds and its rear axle capacity from 12,200 to 23,000 pounds. Sub-variants of the 4300 model are also available in Lo-Profile configurations, with a lower platform for easier cab and load-bed access. Denoted as 4300LP, they differ from the original model in axle capacity. The 4300LP has a front axle capacity from 8,000 to 9,000 pounds and a rear axle capacity from 12,200 to 19,000 pounds.
The International 4300 truck is one of three variants of the International DuraStar model produced by Navistar International in 2002; the other two being the 4100 and the 4400. Originally introduced as the International 4000 Series, the International DuraStar is the successor to the 4000 Series produced by Navistar in the 1990s. Although they differ in engines, drivetrains, brakes and cargo capacity, all three variants were built on the same chassis.
Navistar International Corporation, formerly International Harvester Company, is an American holding company that owns a variety of auto businesses, including the International brand commercial trucks, MaxxForce brand diesel engines and the Workhorse brand chassis.