From the brand
Product description
Why Alternator Health Matters on Subaru 3.6L Platforms
Once the engine is running, the alternator becomes the primary electrical power source for:
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ECU, ignition, and fuel delivery
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AWD and stability control systems
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Electric power steering
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Cooling fans and HVAC blowers
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Infotainment and safety electronics
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Charging and maintaining the battery
When alternator output drops, the battery tries to compensate—briefly—and then fails early. Symptoms usually include:
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Repeated dead batteries
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Charging system or battery warnings
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Flickering headlights or dash displays
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Random electrical or drivability glitches
Replacing the alternator fixes the root cause, not the symptom.
Correct 130-Amp Output — Subaru Spec, Not Guesswork
Subaru engineered the EZ36 charging system around a 130-amp alternator to handle AWD load, idle time, and accessory demand. This alternator provides:
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Stable voltage at idle
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Consistent output with accessories running
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Proper battery recharge after starts
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Reduced long-term stress on wiring and control modules
Not oversized. Not underpowered. Exactly what the system expects.
Compatible with Subaru Models:
- 2010-2014 Legacy H6 3.6L
- 2010-2014 Outback H6 3.6L
- 2010-2014 Tribeca H6 3.6L
OEM Number:
- A3TJ3591, 23700-AA620, 23700-AA621, 23700-AA830, A3TJ3591A, A3TJ3591B, A003TJ3591A, A003TJ3591B, 11437N, 11437
Specifications:
- Amperage: 130A
- Voltage: 12V
- Rotation: Clockwise
- Number of Grooves: 6
Brand-New Construction for Long-Term Reliability
The A-Premium alternator features:
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New high-efficiency copper windings
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Internal voltage regulation for clean, stable output
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Precision-balanced rotor and quality bearings
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OE-style mounting points and electrical connectors
No reman internals. No mystery wear. Built for daily driving and long-term ownership.
Why Buy from Pro Street Online?
At Pro Street Online, we sell fixes—not guesses:
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Clear vehicle-specific fitment
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Correct amperage for Subaru H6 platforms
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Brand new — not remanufactured
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Built for real-world reliability
If your Subaru keeps killing batteries or lighting up the dash, this is the fix.
Eric K. –
Good value
Good quality alternator at a great price, fits my vehicle perfectly – 2015 Subaru Outback
Gadow Girl –
For the price it works as it should
I’m happy with charges to 14 volts reg seems to work .internal cooling fan was off centre but owing to it size cause no sound issue so fare.