ALT8612, 36SI Brushless Alternator, J180 Hinge Mount, 170 Amps, 12 Volts

Upgrade your charging system with the ALT8612 36SI HP Brushless Alternator, engineered for high-performance and long-lasting reliability in heavy-duty commercial applications.

This 170-amp, 12-volt brushless alternator is designed with a J180 hinge mount, making it a direct-fit replacement for compatible truck charging systems. The brushless design reduces internal wear, improves efficiency, and significantly extends service life compared to traditional brush-type alternators.

Built for demanding environments, this alternator delivers stable and consistent power to support batteries, lighting systems, HVAC, and all onboard electronics.

Why replace your alternator?

• Weak or failing battery charge
• Electrical system instability
• Dim lights or power fluctuations
• Charging system warning indicators

Key Benefits

• High-output 170 AMP performance
• Brushless design for longer service life
• 12V stable charging system
• J180 hinge mount for easy installation
• Reduced maintenance and improved efficiency

Applications

• Heavy-duty trucks
• Fleet and vocational vehicles
• Commercial diesel-powered equipment

(Compatible with systems using 36SI HP brushless alternator platforms with J180 mounting.)