ATG10553 Alternator for Medium & Heavy-Duty C50 3126 3116 87715398 87715398R 5264312 12715 The ATG10553 alternator is designed for use in medium and heavy-duty trucks equipped with engines such as the 3126, C50, and 3116.It serves as a direct replacement for OEM models 87715398, 87715398R, 5264312, and 12715, with interchange compatibility including ABO0366 and BAL9963S.Mounted on the engine, this 12-volt unit delivers a maximum output of 200 amps, supporting of electrical systems under conditions.Engineered for precise fitment, the alternator aligns with manufacturer specifications for 3126 and similar engine platforms.It supports straightforward installation without the need for modifications, making it suitable for both replacement and upgrade applications.The unit features an integrated regulator and internal cooling fan to maintain efficient thermal management and stable voltage output during extended use.Constructed to endure heavy-duty service, the alternator combines internal components with a compact, lightweight design.This allows for consistent performance in stress environments while simplifying handling during installation or maintenance.Its robust build supports prolonged in commercial and industrial vehicle applications where dependable power generation is required.