2000 Audi S4 Alternators

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

The Bosch Premium Alternator, delivering 120 amps and operating at 12 VDC with a clockwise rotation, is engineered for peak performance and reliability. This remanufactured unit undergoes 100% factory testing and full-load evaluations to meet Bosch’s stringent performance standards, ensuring dependable operation in demanding conditions. Built with high-quality materials and advanced technology, it offers exceptional durability and long-lasting performance. Whether you’re replacing a worn-out alternator or upgrading for better efficiency, this alternator is designed to keep your vehicle’s electrical system running smoothly. Trust Bosch for a premium solution that combines precision engineering with unmatched reliability.

Product Features:

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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 to ensure smooth and efficient operation of your vehicle’s electrical system, even under demanding conditions.
• Engineered with precision to deliver consistent 120-amp output for reliable performance and enhanced efficiency.

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:

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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.

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 comes with a printed copy of test results, providing transparency and 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.
• Designed for enhanced durability, the alternator’s advanced construction minimizes heat dissipation, ensuring reliable performance and long-lasting value.