High Output Alternator for Kia Optima (2011-2013) 2.4L

$108.95

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Direct-Fit Replacement Alternator for 2011-2013 Kia Optima (TF)

What it Does: The replacement alternator restores factory 12V charging system stability and delivers a reliable 110-amp power supply across the electrical grid on the 2011-2013 Kia Optima.

The Stock Kia Optima Charging System Limitations

The factory charging system on the TF generation Optima frequently experiences thermal breakdown within the internal voltage regulator (IR) and diode rectifier pack. Continuous under-hood heat soak from the Theta II engine degrades factory brush contacts, inducing intermittent charging dropouts, erratic idle, dimming cabin electronics, and premature battery failure.

The Engineering Solution

Engineered to precise OE tolerances, this 100% brand-new replacement unit features a heavy-duty die-cast aluminum casing paired with high-conductivity copper windings. Integrated internal cooling fans (IF) dissipate radiant engine heat to preserve diode integrity and steady voltage output. Fitted with a pre-installed 6-groove serpentine pulley, clockwise (CW) rotation geometry, and a factory-matched 3-pin harness interface, it delivers direct plug-and-play installation without harness splicing or bracket modifications.

What's Included

1× 12V 110A Alternator

Technical Specifications

Fitment	2011-2013 Kia Optima
Engine / Chassis	2.4L Theta II (G4KJ) / TF
Stock Output	200 hp / 186 lb-ft
Replaces OEM Part #	11491A, 208-949, 208-949A, 211-6015, 2606446, 2608052, 37300-25600, 37300-2G400, 373002G150, 400-40161, 600878, 90-22-5641, A-9577, AL4098X, ALC415, AVA0129, N5110528

Compatibility

2011 Kia Optima 2.4L
2012 Kia Optima 2.4L
2013 Kia Optima 2.4L

Frequently Asked Questions & Fitment Warnings

Does this fit the TF Optima?

Yes, this is a direct fit for the 2011-2013 Kia Optima equipped with the 2.4L Theta II engine. It is not compatible with Optima Hybrid models or 2.0L Turbo trims.

Are any wiring modifications or pulley swaps required?

No, this unit is engineered with an OEM-spec 3-pin connector and factory 6-groove serpentine pulley for a direct bolt-on installation.

The Kia Calibration Standard

Maintaining stable electrical bus voltage is critical to protecting sensitive modern engine control modules and electronic power steering systems from voltage ripple and undervoltage DTCs.