TYC 2-21017 Alternator

TYC 2-21017 Alternator for Toyota Tacoma

TYC 2-21017 is a 100-amp alternator built for 2016-2023 Toyota Tacoma applications. It uses an OE manufacturer reference of ND, a clockwise rotation, a 7-groove decoupler pulley, and is specified for direct replacement service on the Tacoma charging system.

Key Features

• 100A output for factory-style electrical charging performance
• Decoupler pulley design for smoother belt-driven operation
• 7-groove pulley configuration
• Clockwise rotation
• OE manufacturer reference: ND
• Cross-reference part numbers include Lester 21017 and Toyota 27060-0C170

Detailed Description

This TYC alternator, part number 2-21017, is built for Toyota Tacoma models from 2016 through 2023. It matches the listed OE manufacturer reference and key pulley and rotation specifications, making it a direct-fit replacement for Tacoma charging system service. If you are searching for a 2016-2023 Toyota Tacoma alternator, TYC 2-21017 provides the correct 100-amp output, decoupler pulley, 7 grooves, and clockwise rotation required by the application.

This part cross-references Lester 21017 and Toyota 27060-0C170 for the same application.

Common Uses

• Restoring battery charging performance on a Toyota Tacoma
• Addressing low-voltage or charging warning conditions
• Replacing a worn alternator with pulley or bearing noise
• Correcting intermittent electrical system output on Tacoma models
• Servicing a failed OE-style charging component

Installation Notes and Tips

Verify pulley groove count, rotation direction, and electrical connector match before installation. Confirm fitment against the vehicle’s year and charging system configuration for 2016-2023 Toyota Tacoma models. Inspect the drive belt and related charging components during replacement to help ensure proper system operation after installation.

Quality Assurance

TYC manufactures this alternator to OE-matched specifications for the listed Tacoma applications, including the stated amperage, pulley design, and rotation direction. Use the part number 2-21017 to confirm application details before ordering.