Audi A4 Alternator Parts

Your One-Stop Shop For Trusted Audi A4 Alternator Parts

If you’re in search of Audi A4 Alternator Parts aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 47 Alternator Parts from top brands with prices ranging from $219.99 to $829.99.

Beyond great prices, we stock trusted brands manufacturing all types of Alternator Parts for your Audi A4.

And don’t forget to read customer reviews across all Alternator Parts categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Alternator Parts have to cost top dollar, and we prove it. Browse our top Audi A4 Alternator Parts below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Audi A4 Alternator Parts

Valeo – Alternator: 120 Amps (Part No.439263)

Alternator: 120 Amps

from

$354.99
The 120 Amp Valeo alternator is a premium solution designed to deliver exceptional performance and reliability. Built with 100% new components and core, it eliminates the risk of premature failure, offering superior durability compared to remanufactured units. Engineered with application-specific parts for an exact fit, this alternator ensures seamless integration into your vehicle’s electrical system. Featuring premium rare earth magnets, it maximizes output efficiency without increasing size, making it a compact yet powerful choice. Tested under extreme conditions for up to six months, it guarantees reliability even in the harshest environments, with high resistance to heat, vibration, and contaminants. With a 12 VDC voltage rating, 120 Amp output, and clockwise rotation, this original equipment part (Part Number 439263) is now available in the aftermarket, providing the same trusted quality as factory-installed components. Ideal for maintaining maximum charge output, this Valeo alternator is a smart investment for enhanced fuel economy and long-lasting performance.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439263 is the original equipment part now available in the aftermarket.
See More

WAI – Valeo Ir/If 140 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.11159N)

Valeo Ir/If 140 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty

from

$282.99
This 140-amp alternator from WAI is a top-tier choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection shields against transient voltage spikes, safeguarding your battery and ensuring seamless communication with the ECU. The low saturation voltage minimizes heat dissipation, enhancing durability and efficiency. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is designed to run cooler and last longer. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the moment it powers on. Built for superior quality and durability, this alternator is an excellent investment for dependable power delivery.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Rigorously tested for reliability and performance, ensuring long-lasting durability and dependable power delivery.
See More

Bosch – Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty (Part No.AL0803X)

Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty

from

$386.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 120-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for all your vehicle’s needs. Engineered with precision, it features full-load testing to meet Bosch’s stringent performance standards and is 100% factory tested for quality assurance. Unlike rebuilt units, this alternator is remanufactured using high-quality materials and cutting-edge technology, ensuring long-lasting durability. Its clockwise rotation direction and advanced design make it a dependable replacement part that stands up to demanding conditions. Choose Bosch for a premium alternator that combines superior craftsmanship with unmatched value.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Delivers consistent 120-amp output to support a wide range of vehicle electrical demands.
See More

Bosch – Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty (Part No.AL0800X)

Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty

from

$371.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a trusted choice for your vehicle’s electrical system. With a robust 90-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for all your automotive needs. Engineered with precision, it features full-load testing to meet Bosch’s stringent performance standards and is 100% factory tested for quality assurance. Unlike rebuilt units, this alternator is remanufactured using high-quality materials and cutting-edge technology, ensuring long-lasting durability. Its clockwise rotation direction and advanced design make it a dependable replacement part that stands up to demanding conditions. Choose this alternator for a perfect blend of performance, durability, and value.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Designed for consistent power delivery, the 90-amp output ensures reliable performance for demanding automotive electrical systems.
    • Engineered with precision, the clockwise rotation direction enhances compatibility and efficiency in vehicle applications.
See More

Valeo – Alternator: New (Part No.439986)

Alternator: New

from

$799.99
As a pioneer in automotive electrical systems since 1923, Valeo delivers OE-quality alternators trusted by global vehicle manufacturers. Valeo alternators are 100% new never remanufactured and are engineered with premium rare earth magnets to enhance power output without increasing unit size. Each unit is tested for up to 1,000 hours in extreme thermal, vibration, and electrical Conditions to guarantee long-lasting reliability. Designed for seamless OE fitment, Valeo alternators help improve charging efficiency and reduce CO emissions, making them the ideal solution for both performance and sustainability.

Product Features:


    Product Features:
    • 100% NEW PRODUCT – Valeo alternators are 100% new, not remanufactured, eliminating the risk of premature failure
    • OE FIT – Application-specific design ensures exact fit and seamless integration with vehicle systems
    • HIGH-EFFICIENCY OUTPUT – Premium rare earth magnets deliver higher charging power without increasing unit size
    • EXTREME TESTING – Each alternator undergoes up to 1,000 hours of load and thermal cycle testing for proven durability
    • BUILT TO LAST – Resistant to heat, vibration, and contaminants for long-term, reliable performance.
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Bosch – Alternator: Remanufactured, 140 Amps, 2 Year Limited Warranty (Part No.AL9381X)

Alternator: Remanufactured, 140 Amps, 2 Year Limited Warranty

from

$553.99
Bosch Premium Alternators deliver exceptional performance and reliability, making them a top choice for demanding automotive applications. This remanufactured unit is full-load tested to ensure compliance with Bosch’s rigorous performance standards, guaranteeing dependable operation. With an impressive 140-amp amperage rating and 12 VDC voltage, it provides robust power output for modern vehicle systems. Engineered with high-quality materials and advanced technology, this alternator is built to last, offering long-term durability and value. Its clockwise rotation direction ensures compatibility with a wide range of vehicles, while the 100% factory testing process ensures consistent quality and reliability. Whether you’re replacing a worn-out alternator or upgrading for better performance, this Bosch unit is designed to meet and exceed expectations.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Provides robust 140-amp power output, ensuring reliable performance for modern vehicle systems.
    • Engineered with a clockwise rotation direction for compatibility with a wide range of automotive applications.
See More

Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL0831X)

Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty

from

$334.99
The Bosch Premium Alternator, delivering 150 amps and 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, offering superior durability and longevity. Designed with a clockwise rotation direction, it is built to seamlessly integrate with your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this Bosch alternator provides the power and dependability you need to keep your vehicle running smoothly.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Engineered for seamless integration with your vehicle’s electrical system, ensuring optimal compatibility and performance.
    • Designed with a clockwise rotation direction to enhance operational efficiency and reliability.
See More

Bosch – Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty (Part No.AL0795X)

Alternator: Remanufactured, 120 Amps, 2 Year Limited Warranty

from

$313.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. With a robust 120-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for demanding applications. Engineered with high-quality materials and cutting-edge technology, it is built to last and withstand rigorous use. Its clockwise rotation direction and remanufactured design guarantee compliance with Bosch’s strict performance standards, offering a dependable solution for your vehicle. Each unit undergoes full-load and 100% factory testing to ensure optimal functionality and reliability. Whether you’re replacing a worn-out alternator or upgrading for better performance, this premium component provides unmatched durability and value.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Delivers consistent 120-amp output to support demanding automotive electrical systems.
See More

Bosch – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.AL9382X)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$731.99
The Bosch Premium Alternator, remanufactured to deliver 150 amps, is engineered for exceptional performance and reliability. Designed with cutting-edge technology and high-quality materials, this alternator is built to last, ensuring long-term durability. It operates at 12 VDC with a clockwise rotation direction, making it a dependable choice for your vehicle’s electrical system. Each unit undergoes 100% factory testing and full-load testing to meet Bosch’s rigorous performance standards, guaranteeing optimal functionality. Unlike rebuilt units, these alternators are remanufactured to provide like-new performance, offering superior value and peace of mind. Whether you’re replacing a worn-out alternator or upgrading for better efficiency, this premium component ensures your vehicle stays powered and ready for the road.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Designed for optimal efficiency, delivering 150 amps to support your vehicle’s electrical system seamlessly.
See More

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.23256A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$239.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • Application-specific technical bulletins included where applicable
    • All units are 100% triple tested to ensure quality and performance
    • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

WAI – Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.13357N)

Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty

from

$225.99
This 120-amp alternator from WAI is engineered to deliver exceptional performance and reliability, making it a top choice for aftermarket replacements. Designed to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Featuring a high-power rectifier assembly with open junction press-fit diodes, this alternator is built to run cooler and more efficiently. Each unit is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the very first use. With WAI’s commitment to quality, this alternator offers long-lasting value and dependable power for your vehicle.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Rigorously tested for quality and performance, this alternator ensures dependable power and reliability, backed by WAI’s commitment to long-lasting value.
See More

WAI – Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.13922N)

Bosch Ir/If 120 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty

from

$268.99
This 120-amp alternator from WAI is a premium choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. Its advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while the low saturation voltage minimizes heat dissipation for enhanced durability. The high-power rectifier assembly, equipped with open junction press-fit diodes, keeps the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator guarantees seamless integration with your vehicle’s system. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Designed for long-lasting efficiency, this alternator is a dependable solution for your vehicle’s electrical needs.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Designed for enhanced durability, the alternator’s low saturation voltage minimizes heat dissipation, ensuring long-lasting efficiency even under demanding conditions.
See More

WAI – Bosch Ir/If 140 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty (Part No.11466N)

Bosch Ir/If 140 Amp/12 Volt, Cw, 6-Groove Clutch Pulley, Limited Lifetime Warranty

from

$442.99
Alternator: New, 140 Amps by WAI delivers exceptional performance and reliability, making it a top choice for aftermarket replacements. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation for your vehicle. The advanced voltage regulator protection safeguards against transient voltage spikes, preventing potential battery damage while maintaining efficient communication with the ECU. Its low saturation voltage minimizes heat dissipation, enhancing durability and performance. The high-power rectifier assembly features robust open junction press-fit diodes, keeping the unit cool even under demanding conditions. Each alternator comes with a printed copy of test results, providing transparency and confidence in its quality from the moment it powers on. With 140 amps of power, this alternator is built to handle your vehicle’s electrical demands while offering long-lasting reliability and value.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Delivers 140 amps of power to efficiently handle your vehicle’s electrical demands, ensuring reliable performance and long-lasting value.
See More

Valeo – Alternator: New, 180 Amps (Part No.439798)

Alternator: New, 180 Amps

from

$654.99
The Valeo premium alternator delivers exceptional performance and reliability, making it a top choice for automotive electrical systems. Designed with 100% new components and core, this alternator eliminates the risk of premature failure, ensuring long-lasting durability compared to remanufactured units. Featuring premium rare earth magnets, it achieves superior efficiency by increasing output without enlarging its size. With an impressive 180-amp rating and 12 VDC voltage, this alternator is engineered for demanding electrical needs. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. Resistant to heat, vibration, and contaminants, it maintains maximum charge output even under challenging circumstances. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and quality, boosting fuel economy and eliminating voltage drops. Perfect for those seeking unmatched performance and durability, this alternator is a leader in its class.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439798 is the original equipment part now available in the aftermarket.
See More

Carquest Premium – Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty (Part No.13921A)

Alternator: Remanufactured, 90 Amps, Limited Lifetime Warranty

from

$219.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • Application-specific technical bulletins included where applicable
    • All units are 100% triple tested to ensure quality and performance
    • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Bosch – Alternator: Remanufactured, 140 Amps, 2 Year Limited Warranty (Part No.AL0891X)

Alternator: Remanufactured, 140 Amps, 2 Year Limited Warranty

from

$519.99
The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding automotive applications. With a robust 140-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for your vehicle’s electrical systems. Engineered with high-quality materials and cutting-edge technology, it is built to last and withstand rigorous use. Its clockwise rotation direction and remanufactured design guarantee compliance with Bosch’s strict performance standards, offering a dependable solution for your vehicle. Each unit undergoes full-load and 100% factory testing to ensure optimal functionality and reliability. Whether you’re replacing a worn-out alternator or upgrading for better performance, this premium alternator provides unmatched durability and value.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Provides consistent 140-amp power output to support demanding vehicle electrical systems.
See More

Valeo – Alternator: New, 140 Amps (Part No.439393)

Alternator: New, 140 Amps

from

$579.99
The Valeo premium alternator delivers exceptional performance and reliability, boasting a robust 140-amp output and 12 VDC voltage. Designed with 100% new components and core, it eliminates the risk of premature failure, ensuring superior durability compared to remanufactured units. Engineered for an exact fit with application-specific parts, this alternator integrates premium rare earth magnets to maximize efficiency without increasing size. Tested under extreme conditions for up to six months, it guarantees reliability even in the harshest environments, withstanding heat, vibration, and contaminating particles to maintain maximum charge output. Its innovative design not only boosts fuel economy but also eliminates voltage drops, making it a top choice for demanding electrical systems. With a clockwise rotation direction and award-winning technology, this alternator is a testament to Valeo’s legacy of excellence in automotive electrical systems since 1923.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
See More

Bosch – Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty (Part No.AL0196X)

Alternator: Remanufactured, 150 Amps, 2 Year Limited Warranty

from

$449.99
The Bosch Premium Alternator, delivering 150 amps at 12 VDC, is engineered for exceptional performance and reliability. Full-load tested to meet Bosch’s rigorous performance standards, this alternator ensures dependable operation under demanding conditions. Unlike rebuilt units, it is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, guaranteeing long-lasting durability. Designed with a clockwise rotation direction, it is built to seamlessly integrate into your vehicle’s electrical system. Whether you’re replacing a worn-out alternator or upgrading for enhanced performance, this premium unit offers outstanding value and peace of mind.

Product Features:


    Product Features:
    • Full-load tested to guarantee compliance with Bosch’s strict performance specifications
    • 100% factory tested, units are remanufactured (not rebuilt)
    • Built to last – uses high quality materials and the most technologically advanced developments.
    • Seamlessly integrates with your vehicle’s electrical system for optimal compatibility and performance.
    • Engineered for dependable operation under demanding conditions, ensuring reliability and peace of mind.
See More

Carquest Premium – Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty (Part No.11161A)

Alternator: Remanufactured, 150 Amps, Limited Lifetime Warranty

from

$338.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • Application-specific technical bulletins included where applicable
    • All units are 100% triple tested to ensure quality and performance
    • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Carquest Premium – Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty (Part No.11466A)

Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty

from

$254.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

WAI – Bosch Ir/If 90 Amp/12 Volt, Cw, 5-Groove Pulley, Limited Lifetime Warranty (Part No.13921N)

Bosch Ir/If 90 Amp/12 Volt, Cw, 5-Groove Pulley, Limited Lifetime Warranty

from

$242.99
This 90-amp alternator from WAI is a premium choice for those seeking reliability and performance in their vehicle’s electrical system. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. The high-power rectifier assembly, equipped with open junction press-fit diodes, is designed to keep the unit running cool even under demanding conditions. Fully compliant with ECU communication, this alternator guarantees seamless integration with your vehicle’s system. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Built for long-lasting dependability, this alternator is a smart investment for maintaining your vehicle’s electrical health.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Designed for enhanced durability, the alternator’s advanced construction minimizes heat dissipation, ensuring reliable performance even under demanding conditions.
See More

Carquest Premium – Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty (Part No.42057A)

Alternator: Remanufactured, 180 Amps, Limited Lifetime Warranty

from

$550.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading limited warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading limited warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:


    Product Features:
    • Designed to meet or exceed OE specifications for fit, form and function
    • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
    • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
    • 100% new OE-quality brushes and bearings are used to ensure long service life
    • Rotors and stators are load tested and double insulated for maximum charging performance
    • Slip rings are precision polished for maximum brush contact and service life
    • Application-specific technical bulletins included where applicable
    • All units are 100% triple tested to ensure quality and performance
    • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
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WAI – Alternator: New, 150 Amps (Part No.11070N)

Alternator: New, 150 Amps

from

$343.99
This 150-amp alternator from WAI is a premium choice for those seeking reliability and performance. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation. The advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage, while its low saturation voltage minimizes heat dissipation for enhanced durability. Equipped with a high-power rectifier assembly featuring open junction press-fit diodes, this alternator is designed to run cooler and more efficiently. Each unit comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Ideal for those who demand quality and dependability, this alternator is built to deliver consistent power and long-lasting value.

Product Features:
  • Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
  • Voltage regulator protection – load dump protected against transient voltage spikes avoiding potential battery damage. Low saturation voltage results in lower heat dissipation. Fully compliant in communication with ECU.
  • High power rectifier assembly is designed with higher power open junction press fit diodes to keep the units running cool.
  • Each unit includes a printed copy of the test results so you know exactly what to expect from our parts right from the first time they power on.
  • Designed for enhanced durability, the alternator’s advanced construction minimizes heat dissipation, ensuring consistent performance and long-lasting reliability.
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Valeo – Alternator: New, 150 Amps (Part No.439574)

Alternator: New, 150 Amps

from

$329.99
The Valeo premium alternator, boasting a robust 150-amp output and 12 VDC voltage, is engineered for superior performance and reliability. As a 100% new product, it eliminates the risks associated with remanufactured units, ensuring long-lasting durability. Designed with premium rare earth magnets, this alternator delivers enhanced efficiency without increasing its size, making it ideal for modern vehicles. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. With high resistance to heat, vibration, and contaminants, it maintains maximum charge output even under demanding electrical loads. The clockwise rotation direction and original equipment part number 439574 make it a perfect aftermarket replacement for seamless compatibility. Recognized for innovation, Valeo alternators improve fuel economy and eliminate voltage drops, offering exceptional value for drivers seeking dependable performance.

Product Features:
  • Valeo premium alternators are 100% new products (not remanufactured)
  • 100% new components and core eliminates premature failure for increased durability over remanufactured units
  • All parts are application specific for an exact fit
  • Premium rare earth magnets increase the output of the alternator without increasing the size for better efficiency
  • All applications go under extreme condition testing up to 6 months to ensure reliability under the harshest conditions and electrical demands
  • High resistance to heat, vibration, and contaminating particles helps maintain maximum charge output
  • Part Number 439574 is the original equipment part now available in the aftermarket.
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Carquest Premium – Alternator: Remanufactured, 120 Amps, Limited Lifetime Warranty (Part No.13922A)

Alternator: Remanufactured, 120 Amps, Limited Lifetime Warranty

from

$259.99
Carquest Premium alternators are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium alternators are designed to meet or exceed OE specifications for fit, form and function. Our alternators are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and bearings) with new components to ensure long-life. All critical components are electronically tested during assembly and the entire unit is 100% tested, ensuring proper performance backed by an industry-leading warranty. We also offer technical support at 1-800-228-9672 for product questions, diagnostic troubleshooting and installation assistance by ASE Certified Technicians.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • Remanufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
  • Regulators and rectifiers are 100% electronically load tested for reliable charging performance
  • 100% new OE-quality brushes and bearings are used to ensure long service life
  • Rotors and stators are load tested and double insulated for maximum charging performance
  • Slip rings are precision polished for maximum brush contact and service life
  • Application-specific technical bulletins included where applicable
  • All units are 100% triple tested to ensure quality and performance
  • Technical support team staffed with ASE Certified Technicians: 1-800-228-9672
See More

Alternator Parts Brands You Can Trust For Your Audi A4

5 trusted brands of Alternator Parts line our shelves, ready to help keep your Audi A4 running smooth. Below are some of the most popular brands and their top Alternator Parts offerings:

Most Purchased Audi A4 Alternator Parts from Carquest Premium

When you buy the most frequently purchased Carquest Premium brand Alternator Parts, you can be confident it will be the right part for your Audi A4. Here are the Carquest Premium Alternator Parts Advanced Auto customers buy the most:

FAQs for Audi A4 Alternator Parts

What are the most purchased Alternator Parts for the Audi A4?

Out of 47 Alternator Parts for the Audi A4, the most popular in our inventory are:
Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty
from $239.99
This product is not rated
Alternator: Remanufactured, 140 Amps, Limited Lifetime Warranty
Alternators
Alternator: New, 150 Amps
from $343.99
This product is not rated
Alternator: New, 150 Amps
Alternators
Alternator: New, 150 Amps, Limited Lifetime Warranty
from $404.99
This product is not rated
Alternator: New, 150 Amps, Limited Lifetime Warranty
Alternators

What are the top-rated Audi A4 Alternator Parts?

Top-rated Alternator Parts for your Audi A4 based on customer reviews/ratings are:
Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty
from $371.99
(1)
Alternator: Remanufactured, 90 Amps, 2 Year Limited Warranty
“shipped quickly although it was easier to install the part than to get through this review”