J.C. Whitney JN33010013 OEM Replacement Alternator 120A 6-Groove Valeo

The J.C. Whitney JN33010013 is a direct-fit OEM replacement alternator engineered for the Nissan Maxima equipped with the 3.5L V6 engine. Sourced from Valeo — the original equipment manufacturer (OEM) supplier for this application — this unit is designed to restore factory-correct charging performance without modification.

The alternator converts engine mechanical energy into electrical energy via the serpentine drive belt, continuously recharging the 12-volt battery and supplying power to the vehicle's lights, electronics, and control modules. A built-in internal voltage regulator maintains stable output to prevent undercharging or overcharging of the electrical system.

Key Specifications:

• Output: 120 Amps / 12 Volts
• Rotation: Clockwise (CW)
• Pulley: 6-Groove serpentine, 57 mm outside diameter
• Cooling Method: Internal fan / Air cooled
• OE Manufacturer: Valeo (Unit: TG12C014)
• Regulator: Internal / Internally Regulated (IR/IF)
• Clutch/Decoupler Pulley: No

Cross-Reference Part Numbers:

• Nissan OEM: 23100-7Y020
• Valeo: TG12C014, 2650031
• Aftermarket: AL2400X, 400-40032, AVA0004, 420031, 12568, 11017, 849002

This alternator is designed to bolt directly into the factory mounting location using the OEM fitment specifications, making installation straightforward. It is internally regulated and uses the standard serpentine belt drive, requiring no additional wiring adapters or bracket modifications for a proper OEM-style installation.