Wilson 90-01-4577N Alternator

Wilson 90-01-4577N Alternator Overview

The Wilson 90-01-4577N is a new 12-volt alternator built with 100% new premium parts and tested before it leaves the facility. It is a 160-amp unit with an IR/IF design, pad mount, and 1:00 battery terminal clocking for applications that use a DELCO REMY 24SI-style alternator.

For buyers searching for a Wilson alternator for Delco Remy 24SI applications, this unit is built to meet or exceed OE standards and deliver consistent charging performance. The 90-01-4577N is a direct electrical replacement for vehicles that require a 160 amp, 12V charging unit with the listed mounting and terminal configuration.

Key Features

• 160 amp output for charging-system demand
• 12-volt electrical system
• IR/IF design for the specified application
• Pad mount configuration
• 24SI series alternator design
• 1:00 battery terminal clocking
• Built using 100% new premium parts
• Tested prior to shipment

Product Details

Wilson New Alternator part number 90-01-4577N is engineered as a new replacement alternator for charging and starting system service. It is specified as a DELCO REMY unit OE style replacement in the 24SI series, making it a strong match for vehicles and equipment that require this electrical layout. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common search terms for this unit include Wilson 90-01-4577N alternator, 160 amp 12 volt alternator, and Delco Remy 24SI replacement alternator. It is also relevant for buyers looking for a Wilson alternator for Chevrolet and GMC charging system service where the OE configuration matches the listed specs.

What It Helps Fix

• Low battery charging output
• Battery warning light concerns related to alternator performance
• Dim lights caused by weak charging voltage
• Charging-system failure from a worn or incorrect alternator
• Voltage instability under electrical load

Installation Notes

Verify the existing alternator’s amperage, mount type, clocking, voltage, and terminal orientation before installation. Confirm that the vehicle uses a pad-mount 24SI-style alternator with 1:00 battery terminal clocking and a 12V system. Compare the original unit and connector layout to the Wilson 90-01-4577N to ensure proper fitment on the intended Chevrolet or GMC application.

Quality Assurance

Wilson manufactures this new alternator with premium new components and tests each unit before it leaves the facility. The design is built to meet or exceed OE standards for the specified application.