High Output Alternator for Scion tC (2011-2016) 2.5L
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High-Output 320A Alternator for 2011-2016 Scion tC (ANT10)
What it Does: The 320 Amp High Output Alternator replaces the factory low-amperage charging unit on the 2011-2016 Scion tC to stabilize system voltage and provide massive electrical headroom for high-demand accessories.
The Stock Scion tC Charging System Bottleneck
The factory charging system in the second-generation ANT10 chassis relies on an OEM alternator rated at roughly 100 amps. When running high-wattage audio amplifiers, air management compressors, auxiliary lighting, or high-draw cooling fans, this stock unit is quickly overwhelmed. The result is severe voltage sag below 12.5V, diode overheating, sluggish throttle body actuation, and premature battery degradation under sustained electrical load.
The Engineering Solution
Engineered to resolve electrical starvation in the 2AR-FE platform, this heavy-duty 320-amp alternator delivers stable, ripple-free direct current across the entire RPM band. Built with premium heavy-gauge copper windings, high-temperature diodes, and an oversized internal rectifier, it dissipates heat efficiently under continuous peak operation. The precision-balanced rotor ensures vibration-free performance at high engine revs, providing uninterrupted 14.4V rail stability without thermal choke.
What's Included
- 1x 320-Amp High Output Alternator
Technical Specifications
| Fitment | 2011-2016 Scion tC |
|---|---|
| Engine / Chassis | 2AR-FE (2.5L) / ANT10 |
| Stock Output | 180 hp / 174 lb-ft |
| Replaces OEM Part # | 104210-2270, 11402N, 11402R, 27060-36010, 11402, 11402-320A |
Compatibility
- 2011-2016 Scion tC Base 2.5L L4 (Gasoline)
Frequently Asked Questions & Fitment Warnings
Does this fit the ANT10 tC?
Yes, this is a direct bolt-on fit for the 2011-2016 Scion tC equipped with the 2.5L 2AR-FE engine utilizing the factory mounting brackets and belt path.
Do I need to upgrade my electrical wiring for a 320A alternator?
Yes, a "Big 3" or "Big 4" wiring upgrade using minimum 1/0 AWG pure copper cable is required to safely transfer this unit's 320-amp output without melting factory harness wiring.
The Scion Tuner Caliber
Built for the demands of the sport-compact enthusiast, this unit supplies rock-solid electrical current so your ignition, sensors, and aftermarket electronics perform at their absolute peak without voltage-induced misfires.
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