Wilson 90-01-4721 Heavy Duty 28SI Alternator 180 Amp 12V

The Wilson 90-01-4721 is a professional-grade 28SI Series alternator delivering 180 amps at 12 volts, designed for heavy-duty applications across automotive, truck, marine, agricultural, and industrial equipment. This remanufactured alternator is built using processes similar to new unit manufacturing, providing excellent performance and reliability at an economical price point.

Key Features:

• 28SI Series design with 180-amp output at 12 volts
• Thoroughly checked, cleaned, tested, and reassembled with components assessed and renewed to OE standards
• Compatible with Delco Remy 8600223, 8600261, 8600454 and other cross-reference numbers
• J180 hinge mount configuration for reliable installation
• Built for demanding heavy-duty applications and extreme operating conditions

Wilson has been supplying automotive, heavy-duty truck, marine, agricultural, and industrial aftermarkets since 1940 with high-quality starters, alternators, and electrical components that meet or exceed OE standards. Each remanufactured alternator undergoes rigorous quality control to ensure dependable performance in the field.