A Guide to Replacing the Alternator on a 2006-2013 Chevrolet Impala
Keep your Impala's electrical system healthy by learning the signs of a failing alternator and how to choose the best aftermarket replacement.
- The "Battery Saver Active" message is a key sign of alternator failure specific to your Impala.
- Always confirm your engine size and the correct amperage (typically 125A or 150A) before ordering a replacement part.
- For the best reliability, choose a premium aftermarket brand like ACDelco Gold, Bosch, or Denso.
- When replacing the alternator, always test your battery and charge it fully to prevent damage to the new alternator.
Is Your Impala's Alternator Failing?
A failing alternator rarely dies without warning. For the 2006-2013 Impala, the most common sign is a "Battery Saver Active" or "Service Charging System" message on the dashboard. This is your car's computer telling you that the alternator isn't producing enough voltage. You might also notice other electrical issues that signal a problem.
- Dimming or Flickering Lights: Headlights and interior lights may pulse, flicker, or appear dim, especially when the engine is at idle.
- Whining Noise: A grinding or whining sound from the engine bay that changes with engine RPM often points to failing bearings inside the alternator.
- Weak or Dead Battery: The alternator is responsible for recharging your battery. If the alternator is bad, the battery will drain while trying to power the car, leading to a no-start condition.
- Electrical Problems: You might experience strange behavior from your radio, power windows, or other accessories as they struggle to get enough power.
Check Amperage and Engine Before Ordering
The 2006-2013 Impala was available with several engines (3.5L V6, 3.9L V6, 5.3L V8, and 3.6L V6 in later years). Alternators came in different amperage ratings, most commonly 125A and 150A. Always verify your specific engine and the required amperage of your original alternator before purchasing a replacement to ensure compatibility.
Choosing the Right Aftermarket Alternator
When your original alternator fails, you don't have to go back to the dealership. The aftermarket offers several tiers of quality and price. For a daily-driven Impala, a quality aftermarket part provides a great balance of value and reliability.
Tier 1: Premium Aftermarket Brands
These brands are known for manufacturing high-quality components that often meet or exceed the original factory part's performance. They are the best choice for long-term reliability.
- ACDelco (Gold/Professional): As GM's official parts supplier, ACDelco is a trusted choice. Their Gold line is considered a top-tier aftermarket option, while the Silver line is more budget-friendly but still reliable.
- Bosch: With a strong reputation for electrical parts, Bosch offers both new and remanufactured alternators that are well-regarded for their quality and durability.
- Denso: A major OEM supplier for many car manufacturers, Denso is widely considered one of the best aftermarket brands for performance and reliability.
Tier 2: Standard Aftermarket Brands
These brands offer a good middle ground, providing reliable parts at a more accessible price point. They are a popular choice for most repairs.
- Remy (Delco Remy): A historic brand offering both new and remanufactured units with generally good quality.
- BBB Industries: A large North American supplier known for its Quality-Built line, which is tested to meet OE specifications.
- MPA (Motorcar Parts of America): MPA focuses on remanufacturing and rigorous testing to ensure their parts perform correctly.
Tier 3: Economy Brands
These brands compete on price and are suitable for budget-conscious repairs, though they may not offer the same longevity or warranty as premium options.
- Powermaster: Often focused on high-output or specialized applications, but also offers standard replacements.
Test Your Battery
A failing alternator can damage a good battery, and a bad battery can put excessive strain on a new alternator. It is highly recommended to have your battery tested and fully charged or replaced when you install a new alternator to prevent premature failure of the new part.
Alternator Replacement Cost for 2006-2013 Impala
The cost can vary based on the brand you choose and labor rates in your area. Doing the replacement yourself can save a significant amount on labor.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part | $57.66 - $679.64 |
| Shop Labor | $114 - $168 |
| Total Professional Replacement | $171.66 - $847.64 |
Frequently Asked Questions
What does the "Battery Saver Active" message mean on my Impala?
This message means the vehicle's computer has detected that the alternator is not producing enough voltage to run the car's systems and charge the battery. It begins shutting down non-essential features like the A/C and heated seats to conserve energy and allow you to drive a short distance. It is a primary symptom of a failing alternator.
Is replacing the alternator on a 2006-2013 Impala a DIY job?
Yes, for someone with moderate mechanical skill and basic hand tools, this is a feasible DIY project. The process involves removing the serpentine belt, disconnecting the electrical connections, and unbolting the alternator. Access can be tight depending on the engine, but many owners successfully perform the replacement in their driveway in 1-2 hours.
Are there any recalls for the alternator on this Impala?
No, searches of the National Highway Traffic Safety Administration (NHTSA) database did not find any specific recalls for the alternator on the 2006-2013 Chevrolet Impala.
Should I buy a new or remanufactured alternator?
Both new and quality remanufactured alternators from reputable brands are good options. A premium remanufactured unit from a brand like Bosch, Denso, or ACDelco has been rebuilt with new wear components (like bearings and brushes) and fully tested. They can offer similar performance and warranty to a new part at a lower cost.
Helpful Videos
Technical Specifications
OEM Part Numbers: 13520825 23106528 20757889 10335497
Amperage: 125A or 150A; Voltage: 12V; Pulley: 6-Groove Serpentine; Rotation: Clockwise.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Chevrolet Impala:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Impala's Alternator Failing?
- Check Amperage and Engine Before Ordering
- Choosing the Right Aftermarket Alternator
- Tier 1: Premium Aftermarket Brands
- Tier 2: Standard Aftermarket Brands
- Tier 3: Economy Brands
- Test Your Battery
- Alternator Replacement Cost for 2006-2013 Impala
- Frequently Asked Questions
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