Alternator -21Si, 100Amp, 12V 19010181

This alternator is designed for use in heavy-duty truck applications, delivering 100 amps of output at 12 volts. Built with a lightweight design, it facilitates simplified installation and fits J180 hinge mounts. The alternator is engineered to use less engine horsepower, contributing to substantial fuel savings. Its durable construction ensures long-lasting performance under demanding conditions.

• Application: Heavy-duty truck electrical systems
• Function: Generates electrical power to charge the battery and supply the vehicle’s electrical system
• Voltage: 12V
• Amperage: 100A
• Mount Type: J180 hinge
• Compatibility: Suitable for various heavy-duty truck models (verify fitment before installation)
• Features: Lightweight design for easy installation, reduced engine horsepower usage for fuel efficiency, and durable construction for long service life

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