DENSO 021080-0170 Amplifier Alternator 140-AMP V6 3.9L 140ALTERNATOR

( Brand: Denso ), ( Manufacturer Part Number: 021080-0170 ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Vintage Part: No ), ( Type: Alternator ), ( Manufacturer Warranty: 1 Year ), ( Voltage: 12 V ), ( Amperage: 150 A ), ( Features: Clockwise Rotation ), ( Country Of Origin: United States )

Review DENSO 140alternator Chevy 2006 V6 3.9l fits IMPALA MONTE CARLO 2009–2011

The Denso 021080-0170 140-amp Alternator is an excellent replacement option for the charging system of your Chevy Impala (2006-2009), Chevy Monte Carlo (2006-2011), and V6 models with a 3.9L engine. This alternator, manufactured by the renowned Japanese automotive components supplier Denso, is engineered to deliver consistent and reliable power to your vehicle's electrical systems.

Made from high-quality materials, this alternator boasts a robust and durable design. Its rotor and stator are constructed from copper and aluminum, respectively, ensuring optimum electrical conductivity and heat dissipation. The alternator's pulley is designed with a smooth and quiet belt drive system, ensuring a serene operating environment within your vehicle.

The Denso 140-amp Alternator features a diode design, which not only provides power to the vehicle's electrical systems but also recharges the battery while the engine is running. The diode design helps prevent reverse battery drain, ensuring that your vehicle's battery is always charged and ready to go.

The alternator comes with a built-in voltage regulator, which maintains the charging system voltage at an optimal level. This not only extends the life of the battery but also ensures that all electrical components are receiving the correct voltage, ensuring reliable operation.

Installation of the Denso 140-amp Alternator is straightforward and can be completed with standard hand tools. The alternator comes with all necessary mounting hardware and wiring harness connections, ensuring a hassle-free installation process.

With its robust design, reliable performance, and easy installation, the Denso 021080-0170 140-amp Alternator is the perfect replacement option for your Chevy Impala or Monte Carlo's charging system. By choosing Denso, you can trust that you are getting a high-quality component that will provide you with reliable and consistent power for years to come.

Denso 021080-0170 140 Alternator for Chevy Impala and Monte Carlo (2006-2011): A Comprehensive Analysis

The Denso 021080-0170 140 alternator is a popular choice for Chevy Impala and Monte Carlo owners with V6 3.9L engines from the years 2006 to 2011. This alternator offers a 140-amp output, ensuring reliable charging for the vehicle's electrical components. In this analysis, we will discuss the advantages and disadvantages of purchasing this alternator.

1. High-quality components: Denso is a reputed manufacturer known for producing top-notch automotive parts. The 021080-0170 alternator boasts durable materials and precise engineering, ensuring long-lasting performance.

2. Proper fitment: This alternator is specifically designed for the Chevy Impala and Monte Carlo models mentioned, ensuring a perfect fit and easy installation.

3. OEM-grade replacement: As an original equipment manufacturer (OEM) replacement, this alternator offers the same level of quality and reliability as the original part, giving customers peace of mind.

4. Enhanced battery charging: With a 140-amp output, this alternator more effectively charges the vehicle's battery, ensuring a consistently charged battery and preventing issues related to a weak battery.

1. Cost: The Denso 021080-0170 alternator is priced higher compared to some aftermarket alternatives. However, the premium price reflects the high-quality components and reliable performance.

2. Availability: Depending on the region and availability, customers might face a delay in receiving the alternator, which could lead to inconvenience.

The Denso 021080-0170 140 alternator is a solid choice for Chevy Impala and Monte Carlo owners with V6 3.9L engines from the years 2006 to 2011. Its high-quality components, precise fitment, and OEM-grade replacement status make it a reliable investment. Although it comes with a premium price tag, its unmatched performance and durability make it a worthwhile investment for those seeking a long-term solution for their vehicle's charging needs.

If you're in the market for a reliable and high-performing alternator for your Chevy Impala or Monte Carlo from the specified model years, we would strongly recommend considering the Denso 021080-0170 140 alternator. Its advantages outweigh the disadvantages, making it a sound investment for maintaining the electrical health of your vehicle.

Details:

2009 Chevy Impala alternator.

part #: 0210800170 prices

• $211.31-$276.23

specifications altnagen:

• for models: Impala, Monte, Carlo
• for makes: Chevy
• for years: 2009-2011
• brand: Denso
• mpn: 021080-0170
• oe spec or performance/custom: Oe Spec
• vintage part: No
• type: Alternator
• manufacturer warranty: 1 Year
• voltage: 12 V
• amperage: 150 A
• features: Clockwise Rotation
• country of origin: United States

offer altnagen:

• best offers: True
• availability: In Stock
• started: January 16, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1

seller altnagen:

• city: Stuart, Florida
• # reviews: 0
• rating: 0.0%

shipping altnagen:

• cost: $90.06
• service: USPS Ground Advantage
• transit: 7-11 Days
• type: Calculated
• carrier: USPS
• class: Standard

payments altnagen:

• wallet: Apple-pay
• credit card: Discover
• other

returns altnagen:

• policy: No Returns

general altnagen:

• condition: Used
• Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Alternators Generators

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