High Output Alternator for Infiniti G25 (2011-2012) 2.5L

High-Amp High Output Alternator for 2011-2012 Infiniti G25 (V36)

What it Does: The High Output Alternator replaces the factory charging unit on the 2011-2012 Infiniti G25 to supply 250 amps of stable current, preventing voltage drops under heavy electrical loads.

The Stock Infiniti G25 Charging Limitations

The factory charging system on the V36 platform utilizes a standard-output unit designed strictly for stock electronics. When owners add aftermarket audio equipment, high-draw amplifiers, or supplementary accessories, the stock stator windings rapidly experience thermal saturation and output sag. Under continuous electrical load at idle speeds, the OEM unit cannot maintain the requisite 13.5 to 14.5 system voltage, resulting in dimming headlamps, discharged batteries, premature diode pack failure, and accessory voltage cutouts.

The Engineering Solution

Engineered as a direct bolt-in replacement, this 250-amp unit addresses thermal breakdown using heavy-gauge copper stator windings and a precision-balanced rotor. High-grade sealed bearings reduce rotational friction and counter mechanical wear across high RPM cycles. Regulated by an internal voltage regulator, the unit modulates current strictly on vehicle demand, avoiding overcharging while ensuring instantaneous transient load recovery. It retains the factory bolt geometry, OE pulley dimensions, and factory-style electrical harness connector for an unmodified installation, matching interchange numbers 23100-EG010, A3TJ0691, and 11315.

What's Included

• 1 High Output Alternator (250 Amp)

Technical Specifications

Compatibility

• 2011 Infiniti G25 Sedan 2.5L V6 (VQ25HR)
• 2012 Infiniti G25 Sedan 2.5L V6 (VQ25HR)

Frequently Asked Questions & Fitment Warnings

Does this fit the V36 G25?

Yes, this is a direct fit for the 2011-2012 Infiniti G25 equipped with the VQ25HR engine.

Do I need to upgrade my battery wiring for this 250-amp unit?

While this alternator utilizes the factory plug and mounting points, upgrading the primary B+ charge lead and engine ground cables (Big 3 upgrade) is strongly recommended to achieve full 250-amp transfer capacity without thermal resistance.

The Infiniti Performance Standard

Maintain consistent electrical current and peak transient response across the entire rev band, preserving the refined Japanese sports sedan engineering of your VQ25HR without risking voltage drops or electronics brownouts.