Denso 210-1059 Alternator

Denso Reman Alternator for GM Trucks and SUVs

The Denso 210-1059 reman alternator is built for 12-volt charging systems that need stable output and OE-style fit. With a 150-amp rating, internal regulator, internal fan, and clockwise rotation, it serves demanding electrical loads in late-model Chevrolet, GMC, and Cadillac applications.

Fits 2014 Chevrolet Silverado 1500 and 2014 GMC Sierra 1500, plus 2015 Silverado and Sierra HD trucks, 2018-2020 Tahoe, Yukon, and Yukon XL, 2019-2020 Escalade and Escalade ESV, and 2021 Savana 2500 and Savana 3500.

Key Features

• Denso reman alternator, part number 210-1059
• 12.0-volt charging system with 150 amp output
• Internal regulator and internal fan design
• Clockwise rotation
• OE family construction for proper mounting and alignment
• Built for vehicles with sensitive electronic systems

Product Details

Denso reman alternators are processed to OE-level standards, with critical electrical components tested under high-voltage conditions and rotating parts checked for wear and runout control. The remanufacturing process focuses on consistent output, reduced brush wear, and bearing performance that matches original equipment expectations. For drivers and technicians, that means a charging solution suited to modern GM trucks and SUVs with multiple onboard electronics.

The Denso OE alternator line is known for compact packaging, efficient operation, and accurate fit. This 210-1059 application is a direct replacement style unit for Silverado, Sierra, Tahoe, Yukon, Escalade, and Savana models listed in the fitment data. If you are replacing a failing alternator on a 2015 Chevrolet Silverado 2500 HD or a 2020 GMC Yukon XL, this reman unit follows the OE configuration closely.

This part cross-references Remy 22068 for the same application.

Common Problems This Part Can Address

• Battery warning light caused by low alternator output
• Dim headlights or unstable electrical performance
• Battery drain after driving due to weak charging
• Charging system noise from worn internal components
• Fitment issues from non-OE-style replacement units

Installation Notes and Tips

Verify the vehicle’s original alternator configuration before installation, including amperage, pulley style, and connector match. This unit uses an internal regulator and clockwise rotation, so the replacement should match the original charging system layout. Confirm belt condition and inspect charging cables, grounds, and battery health during installation to avoid repeat failures.

For best results, clear any charging-system fault codes after installation and test system voltage at idle and under load. The Denso 210-1059 is intended for direct-fit replacement on the listed GM applications, including 2014 Silverado 1500 and Sierra 1500, 2018-2020 Tahoe and Yukon, and 2019-2020 Escalade models.

Quality Assurance

Denso reman alternators are rebuilt to meet OE standards for fit, function, and durability. The brand’s remanufacturing process includes electrical testing of key components and validation of bearings and rotating surfaces to support reliable charging performance in demanding daily-use and fleet applications.