From the brand
Product description
Why Alternator Health Matters on Mazda V6 Platforms
Once the engine is running, the alternator supplies power to:
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Engine control modules and ignition
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Fuel injection and sensors
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Electric power steering
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Headlights and exterior lighting
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HVAC, infotainment, and accessories
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Charging and maintaining the battery
When alternator output drops, the battery is forced to compensate — and batteries are terrible at being alternators. The result:
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Repeated dead batteries
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Flickering or dim lights
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Charging system warning lights
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Electrical glitches and unstable drivability
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No-start situations at the worst possible time
Replacing the alternator fixes the root cause, not just the symptoms.
Proper 110 Amp Output — Exactly What Mazda Designed
Mazda engineered the 3.7L V6 charging system around a 110-amp alternator to balance electrical demand and long-term reliability. This unit delivers:
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Stable voltage at idle and cruising speeds
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Proper battery recharge after cold starts
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Consistent output with accessories running
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Reduced strain on wiring and electrical components
Not underpowered. Not excessive. Exactly right.
Compatible with Mazda Models:
- 2009-2013 6 V6 3.7L
- 2007-2015 CX-9
OEM Number:
- 11267N, 11267, 12838, A3267, AMT0193, A3TJ2391, A-80258, 203-5086, 213-8842, A003TJ2391, CY01-18-300, CY01-18-300A, CY01-18-300R0A, 90-27-3373
Specifications:
- Amperage: 110A
- Voltage: 12V
- Rotation: Clockwise
- Number of Grooves: 6
- Plug Clock: 1:00
- Fan Type: Internal
- Regulator Type: Internal
Built for OE Fitment and Long-Term Reliability
This A-Premium alternator features:
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High-efficiency copper windings for strong current delivery
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Internal voltage regulator for consistent output
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Precision-balanced internals for smooth, quiet operation
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OE-style mounting points and electrical connectors
The 6-groove pulley ensures proper belt alignment, quiet operation, and long belt life — because squealing belts are not a personality trait.
Why Buy from Pro Street Online?
At Pro Street Online, we sell parts that actually fix problems. This alternator is:
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Vehicle-specific
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Correctly rated for Mazda 3.7L platforms
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Designed to restore factory charging reliability
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Ideal for daily drivers, family vehicles, and long-term ownership
If your Mazda still drives like it should, this alternator keeps the electrical system doing the same.
Liz Moon –
This is a very good alternator. Works good and can’t beat the price. fit beautifully everything lined up.
James & Kathryn –
Bought this item in the end of July. Worked fine until a few days ago when it started throwing codes and lights again. Took it to the shop to diagnose and the alternator was bad and needed to be replaced only after 2 1/2 months.
SandraD64 –
Car is running fine, perfect fit
Nino –
Arrived completely without damage it’s a great quality
Amazon Customer –
This was an exact fit and was really a clean unit.
Intothevoid –
Was .05 inch off and couldn’t slide over the bracket. Glad I have a press to push it the rest of the way in.
JG –
There is a problem with this alternator when it is installed in a 2010 Mazda CX 9. It will generate over voltage conditions. This will cause your AC Controls to blink intermittently, and your headlights will blink. The AC fan will cut on and off randomly. Your headlight will blink at slow speeds and drive everyone crazy.
marie raber –
This has been dropped in packing to have broken and popped the cap offBroken piece was in box