The M548 tracked cargo carrier is an unarmored variant of the M113 APC. This vehicle was developed in 1965. It is a general purpose transport vehicle, intended to carry cargo or ammunition to forward areas. This tracked carrier is no longer in service with the US Army. It was exported to Argentina, Canada, Israel, Italy, Spain, Switzerland, and some other countries. It is still operational with some export operators.
The vehicle has a payload capacity of 5.45 t. It can carry three passengers in the cab and at least four in the cargo compartment.
The M548 tracked carrier can be armed with a pintle-mounted 12.7 mm or 7.62 mm machine gun over the cab for self-defense.
The original M548 supply carrier was powered by Detroit Diesel 6V53 turbocharged diesel engine, developing 210 hp. The engine is mounted behind the cab. The vehicle has a low ground pressure and performs well in rugged terrain. The M548 is fully amphibious. On the water, it is propelled by its tracks. The vehicle can be airlifted by the C-130 Hercules. Its height can be reduced by removing canvas top and folding windscreen.
A number of the M548 variants were developed and fielded, including minelayer, recovery vehicle, various radar carriers, missile launchers. A stretched version with 6 road wheels was also used.