Arco Starting & Charging 20830 Marine Alternator 12V 70A

The Arco Starting & Charging 20830 is a high-performance marine alternator designed specifically for Marine Power applications. This reliable 12-volt alternator delivers a robust 70-amp output to meet the demanding electrical needs of marine engines and onboard systems.

Key Features:

• 12-volt output with 70-amp charging capacity
• Internal fan design for efficient cooling and extended service life
• 2-inch mounting foot for secure installation
• Double pulley included for flexible belt configurations
• Complete with wire harness and plug connector for easy installation
• Direct replacement for multiple OEM part numbers

Replaces OEM Part Numbers:

• Delco: 19020616
• Marine Power: 471200, 471201, 4711210
• Sierra: 18-6299

This alternator provides dependable charging performance for Marine Power engines, ensuring your batteries stay charged and your electrical systems run smoothly. The internal fan design helps maintain optimal operating temperatures even under heavy electrical loads, while the included double pulley and wiring connector make installation straightforward.