DENSO 210-5356 Remanufactured First Time Fit Alternator - 135A 12V

The DENSO 210-5356 is a remanufactured 135-amp, 12-volt alternator built to DENSO's stringent First Time Fit standards. Featuring an internal voltage regulator and serpentine pulley, this alternator is engineered to deliver reliable charging performance and full compatibility with today's sophisticated vehicle electrical systems.

Every remanufactured DENSO alternator undergoes a rigorous rebuild process designed to match or surpass original equipment quality. Stators and rectifiers are tested to 300 volts, while rotors are subjected to 600 volts to verify electrical integrity. Rotor slip rings are precision-buffed to an 8-micron surface finish with runout held to within 20 microns, drastically reducing brush wear over time. Bearings are validated to OE specifications and packed with premium OE-grade lubricants for long service life.

Key Features:

• 135-amp output at 12 volts with internal voltage regulator
• Serpentine pulley configuration for direct OE replacement
• Stators and rectifiers tested to 300V; rotors tested to 600V
• Rotor slip rings buffed to 8-micron finish; runout limited to 20 microns
• Bearings validated to OE standards with premium lubricants
• Housings re-tapped and inspected for heat warping, corrosion, and surface alignment
• Voltage regulator 100% tested to OE specifications
• All hardware stripped and re-plated
• First Time Fit design — no belt or pulley alignment issues during installation
• Full compatibility with sensitive and complex OEM electronics systems

OE Cross-Reference Part Numbers: 4R3T-10300-AA, 4R3T-10300-AB, 4R3Z-10346-AA, 6R3T-10300-CB, 6R3Z-10346-A

DENSO alternators are original equipment on many of the world's leading production vehicles and are a trusted choice in motorsports for their lightweight construction, high efficiency, and durability under extreme conditions. The DENSO 210-5356 delivers that same OE-level performance in a remanufactured unit — a smart, cost-effective solution for charging system repair.