From the brand
Product description
Why Alternator Health Matters on GM 2.4L Platforms
Once the engine is running, the alternator becomes the primary power source for:
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Engine management and ignition
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Fuel injection and sensors
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Electric power steering
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ABS, traction control, and safety systems
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Headlights, HVAC, and infotainment
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Charging and maintaining the battery
When alternator output drops, the battery is forced to compensate — briefly — and then fails early. Symptoms include:
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Repeated dead batteries
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Flickering or dim headlights
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Charging system warning lights
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Electrical glitches and no-start situations
Replacing the alternator fixes the root cause, not just the symptoms.
Compatible with Buick Models:
- 2012-2012 Regal L4 2.4L Sedan
- 2015-2017 Regal L4 2.4L Sedan
Compatible with Chevrolet Models:
- 2010-2017 Equinox L4 2.4L Sport Utility
Compatible with GMC Models:
- 2010-2017 Terrain L4 2.4L Sport Utility
OEM Number:
- TG12C067, TG12C174, 130327014048, 130813193926, 11459N, 11459, 13500315, 13588328
Specifications:
- Amperage: 120A
- Voltage: 12V
- Rotation: Clockwise
- Number of Grooves: 5-Groove Pulley
- Plug Clock: 2:00
- Fan Design Type: Internal
- Regulator Design Type: Internal
Proper 120 Amp Output — Exactly What GM Designed
GM engineered the 2.4L charging system around a 120-amp alternator to balance electrical demand and 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 stress on wiring and electronics
Not oversized. Not underpowered. Just right.
Built for OE Fitment and Long-Term Reliability
This A-Premium alternator features:
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High-efficiency copper windings
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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 5-groove pulley ensures proper belt tracking and long belt life — because belt squeal isn’t a feature.
At Pro Street Online, we sell parts that actually solve problems. This alternator is:
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Vehicle-specific
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Correctly rated for GM 2.4L platforms
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Brand new — not recycled
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Designed to restore factory charging reliability
Perfect for daily drivers, commuters, and long-term ownership vehicles.
The A-Premium 120-Amp Alternator for Chevy Equinox, GMC Terrain, and Buick Regal 2.4L delivers OE-correct fitment, stable charging output, and dependable long-term performance. If your GM crossover or sedan keeps killing batteries or lighting up the dash, this is the fix — not another battery.
Funnsunni –
My alternator blow over the weekend not alot of places opening with out charging and emergency fee. Ordered this part got it with early morning shipping. GREAT PRICE AND WORKS GREAT. discription was spot on and it FIT
Alejandro –
This alternator is well-built and delivers strong, consistent charging. It fits perfectly and restores proper electrical performance. A reliable replacement that keeps the vehicle running smoothly.
shawn42 –
Was able to install this alternator in a ’14 Chevy Equinox. Everything lined up perfectly. It fit fine. The only difference I noticed was the the nut which connects the wire to the bottom of the alternator was 10mm on the new one; where the corresponding nut on the old alternator was 13mm. No big deal, the new nut worked fine. Car started up, and has been running fine. Can’t speak to the longevity, but no complaints at this point.
Generic Username –
Absolute garbage, burned out after 2 months and can’t figure out how to talk to the company, 10/10 will never buy again and will consistently recommend Walmart over this company.
Cenia batista –
Durabilidad y calidad
Richard –
Cheap price seems to work fine 4 months later
Jaime –
Works like charm. Great price!
ken –
Item had been dropped and showed some damage to it.
Ricardo Acosta –
right part with excellence in quality
ordering with shipping and delivery it’s an excellent service and also number 1 in right part and quality. Thanks