Denso 210-1020 Alternator

Remanufactured OE-Style Charging Performance

This Denso reman alternator is built for direct replacement applications that demand stable charging output and OE-style fit. It is a 12-volt unit with a 170 amp rating, internal fan, internal regulator, and clockwise rotation for the listed vehicles.

Fits 2014-2018 Chevrolet Silverado 1500, 2015-2018 Chevrolet Tahoe, and 2015-2018 GMC Yukon applications, along with additional Cadillac, Chevrolet, and GMC listings below.

Key Features

• Remanufactured Denso OE family alternator for charging-system service
• 170 amp output for vehicles with higher electrical demand
• Internal fan and internal regulator for integrated operation
• Clockwise rotation and 12-volt design
• Built to Denso First Time Fit standards for proper mounting

Detailed Description

Denso reman alternator 210-1020 is engineered for vehicles that rely on consistent electrical supply for modern onboard systems. The remanufacturing process includes testing of stators, rectifiers, and rotors, plus OE-standard bearing validation and slip-ring finishing to reduce wear and support reliable operation. The result is a charging component that matches the fit and function expected in demanding service environments.

This part number 210-1020 is listed for Cadillac Escalade, Cadillac CTS, Chevrolet Camaro, Chevrolet Silverado 1500, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra 1500, GMC Yukon, and GMC Yukon XL applications. If you are replacing a worn alternator on a Chevrolet Silverado 1500 or GMC Sierra 1500, this reman unit provides the specified 170 amp output and OE-style configuration needed for the charging system.

This part cross-references Lester 14009 and Remy 22068 for the same application.

What It Is Used For

• Low charging output or battery warning lights
• Dim lights or unstable electrical performance
• Alternator noise from worn internal components
• Charging-system failure on high-demand electrical setups
• Replacement of a failed reman or OE-style alternator

Installation Notes and Tips

Verify the vehicle’s alternator configuration, amperage requirement, and rotation direction before installation. Confirm belt alignment and electrical connector match the original unit. Use the listed fitment details for the exact model year and application, including Chevrolet Silverado 1500 and GMC Sierra 1500 listings where applicable.

Quality Assurance

Denso reman alternators are processed to meet OE standards for fit, appearance, and durability. The 210-1020 is built under Denso First Time Fit standards to reduce installation issues and support dependable charging performance.