TYC 2-21105 Alternator

Alternator for Toyota Yaris

This TYC alternator is built for direct replacement service on select Toyota Yaris applications. It matches the OE-style electrical and pulley configuration needed for dependable charging performance, with fitment covering 2015-2019 Toyota Yaris models.

Key Features

• 90-amp output for stable charging performance.
• Internal fan design for compact alternator construction.
• Regular pulley with 4 grooves for belt alignment.
• Clockwise rotation to match the specified application.
• OE manufacturer reference: DENSO.

Detailed Description

TYC part number 2-21105 is an alternator engineered for select Toyota Yaris charging system applications. It uses an internal fan, a regular pulley, and clockwise rotation, with a 90-amp rating that supports the vehicle’s electrical demands. The OE manufacturer reference to DENSO helps identify the original design basis for this replacement. This part cross-references Gates 21105 for the same application.

Common Uses

• Restoring charging output when the alternator no longer maintains system voltage.
• Replacing a unit with worn bearings, brushes, or internal electrical failure.
• Addressing battery warning lights caused by charging system faults.
• Correcting belt drive issues tied to pulley wear or mismatch.

Installation Notes

Verify pulley groove count, rotation direction, and electrical connector match before installation. Confirm compatibility with 2015-2019 Toyota Yaris charging system specifications and compare the removed unit to TYC 2-21105 before final fitment. Professional installation is recommended for proper charging system diagnosis and verification.

Quality Assurance

TYC manufactures replacement electrical components with OE-style application matching. Part number 2-21105 is referenced against DENSO-based original equipment design details for application accuracy.