Wilson 90-01-4723 Alternator

Remanufactured 200 Amp Alternator

This Wilson remanufactured alternator is built for 12-volt charging systems and delivers 200 amps for demanding electrical loads. It is a direct replacement style unit for applications using the DELCO REMY 28SI design, with IR/IF construction and pad mounting.

Part number 90-01-4723 is remanufactured, not simply rebuilt, using a full teardown, cleaning, reassembly with components selected to Wilson standards, and testing to help meet or exceed OE specifications. That makes it a practical choice for heavy-duty charging system service on vehicles such as Chevrolet and GMC applications that use this alternator family.

Key Features

• 200 amp output for higher electrical demand
• 12-volt alternator for standard charging systems
• 28SI series design
• IR/IF configuration
• Pad mount style
• Clocking: 1:00 Bat Term
• OE unit reference: DELCO REMY
• Wilson remanufactured alternator part number 90-01-4723

Product Details

Wilson’s remanufactured alternator line focuses on restoring the unit through complete disassembly, cleaning, reassembly, and testing rather than basic rebuilding. The result is a charging component intended for reliable service in vehicles and equipment that depend on stable voltage output. If you are searching for a 200 amp 28SI alternator, a DELCO REMY 28SI replacement, or Wilson 90-01-4723 for Chevrolet and GMC charging system repair, this unit matches those needs.

This part cross-references Febi-Bilstein 108218 for the same application.

Common Problems This Part Can Help Solve

• Low battery charge or repeated battery drain
• Charging warning light on the dash
• Weak electrical output under accessory load
• Voltage instability at idle or during operation
• Alternator failure in a 28SI charging system

Installation Notes and Tips

Verify the existing alternator’s 28SI series, 200 amp rating, pad mount configuration, and 1:00 Bat Term clocking before ordering. Confirm the vehicle uses a 12-volt charging system and compare the OE reference to DELCO REMY 28SI applications. For Chevrolet and GMC fitment searches, match the original unit style and electrical connections to the removed alternator before installation.

Quality Assurance

Wilson remanufactured alternators are processed through teardown, cleaning, reassembly with components built to Wilson standards, and rigorous testing to help meet and exceed OE specifications.