Confirmed Vehicle Fitment
This alternator is compatible with the following V6 gasoline applications:
Chevrolet
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Impala — 2006–2011
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3.5L V6
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3.9L V6
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Monte Carlo
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2006–2007 — 3.5L V6
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2006 — 3.9L V6
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⚠️ Always verify engine size and OE part number before ordering.
Product description
BDELI – Better Deliver, Better Deal
Why Alternator Health Matters on GM V6 Sedans
Once the engine is running, the alternator becomes the primary electrical power source for:
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Engine control modules and ignition
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Transmission and traction systems
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Power steering and braking electronics
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Headlights, interior lighting, and accessories
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HVAC, infotainment, and charging ports
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Charging and maintaining the battery
When alternator output drops, the battery is forced to compensate — briefly — and then fails early. Common 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 conditions
Replacing the alternator fixes the root cause, not just the symptoms.
NOTE: Please check fitment information before purchase
REPLACEMENT FOR or COMPATIBLE WITH CHEVROLET:
- Impala V6 3.9L 06-11
- Impala V6 3.5L 06-11
- Monte Carlo V6 3.9L 06-06
- Monte Carlo V6 3.5L 06-07
Designed for Factory-Correct Charging Output
GM engineered these 3.5L and 3.9L V6 platforms around a specific amperage range to balance electrical demand and long-term reliability. This alternator delivers:
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Stable voltage at idle and cruising speeds
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Proper battery recharge after starts
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Consistent output with accessories running
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Reduced stress on wiring and electronic components
Not oversized. Not underpowered. Exactly what the system expects.
OE/Part Numbers:
- GM: 10335497, 20757889, 20911162
- Bosch: 0124425032, 0124425102
- Lester: 11185, 11640
- Arrowhead: ABO0241
- J & N Automotive: 400-24062
- TYC: 2-11185
- Remy Remanufactured: 12754, 22038
- NAPA: 213-9667, 213-9293
- Wilson: 90-15-6502, 90-15-6627
- Bosch Remanufactured: AL8807X
Brand-New Construction for Long-Term Reliability
The 11185N alternator features:
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New high-efficiency copper windings
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Internal voltage regulator for consistent output
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Precision-balanced rotor and bearings
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OE-style mounting points and electrical connectors
No reman internals. No mystery history. Just dependable charging you don’t have to think about.
Specfictions:
- Replace: Fit for BOSCH
- Voltage: 12
- Amperage: 125
- Rotation: CW
- Regulator/Fan: IR/IF
- Pulley Class: S6
- Plug Code: 346
At Pro Street Online, we sell parts that actually solve problems. This alternator is:
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Vehicle-specific
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Properly rated for GM 3.5L & 3.9L V6 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 sedans.
Shawn –
Installing ir was easy. Lined up and bolted in. Starting vechile and works excellent. Quite and smooth. Good price for the buck
Marco Rodríguez –
Excellent value for money!
Amazon Customer –
Exact replacement in every aspect.
David –
When it comes to parts for a vehicle like this what you need to know is this trust the fitting information through Amazon it worked perfectly fine for me this is a good working alternator does not make any off sounds does not overheat comes in well packaged and not damaged in box ease of installation will depend upon the customer but it does fit what Amazon says it does for fit issues make sure you’re checking your part numbers
Janet Jones –
It works well just as it says. Great value
Carnell –
Straight trash don’t waste your time or money working at first then start going out go oem with these types of items
Jay Leno –
It was a perfect fit on 3.9 chevy impala. Have had it on for a couple weeks, will see how it lasts.
steve balawejder –
Worked for 15 minutes then the regulator would get too hot. Do yourself a favor and order parts from a local auto parts store.