Aftermarket ATG19455 Alternator fits on-road heavy duty 365 and C1 models.This unit operates on a 12-volt system with a 130-ampere rating, designed to support the electrical demands of heavy-duty trucks.The alternator is built for and consistent performance in conditions.Engineered as a direct replacement, it matches the specifications of and is compatible with part numbers 101211-8100, 101211-8120, and 101211-8360.Its design allows for straightforward installation, integration into the vehicle's existing system.This alternator supports essential electrical functions, maintaining stable power output during whether in urban environments or challenging terrains.Constructed to meet the requirements of heavy-duty applications, it serves as a functional and dependable component for long-term use.