BMW M3 Alternator Parts

Product Features:

• BUILT TO LAST: Advanced heat treatment process for strength
• PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
• RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
• COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
• RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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

The Valeo premium alternator, boasting a robust 180-amp output and 12 VDC voltage, is engineered for exceptional performance and reliability. As a global leader in electrical systems since 1923, Valeo delivers innovation with features like rare earth magnets that enhance efficiency without increasing size, ensuring optimal fuel economy. This 100% new alternator eliminates the risk of premature failure, offering superior durability compared to remanufactured units. Designed for an exact fit with application-specific components, it undergoes rigorous testing for up to six months under extreme conditions to guarantee reliability in the harshest environments. With high resistance to heat, vibration, and contaminants, this alternator maintains maximum charge output even under demanding electrical loads. The clockwise rotation direction and original equipment part number 439675 ensure seamless compatibility, making it a trusted aftermarket solution. Choose Valeo for unmatched quality and performance in your vehicles electrical system.

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 439675 is the original equipment part now available in the aftermarket.

The Bosch Premium Alternator delivers exceptional performance and reliability, making it a top choice for demanding automotive needs. With a robust 140-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for your vehicle’s electrical systems. Engineered with precision, it features full-load testing to meet Bosch’s stringent performance standards and is 100% factory tested for quality assurance. Unlike standard rebuilds, this unit 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 rigorous use. Choose this alternator for a reliable, high-performance solution that keeps 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.
• Designed for demanding automotive applications, the 140-amp output ensures consistent and reliable power delivery to support your vehicle’s electrical systems.
• Precision-engineered with a clockwise rotation direction for seamless integration and dependable performance in your vehicle.

This 80-amp alternator from WAI is a top-tier choice for reliable performance and durability. Engineered to meet or exceed OEM specifications, it ensures a perfect fit and hassle-free installation, making it an ideal replacement 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 overall efficiency. The high-power rectifier assembly, equipped with robust open junction press-fit diodes, keeps the unit running cool even under demanding conditions. Each alternator comes with a printed copy of test results, providing transparency and confidence in its performance from the very first use. Designed for long-lasting reliability, this alternator delivers exceptional value and peace of mind for your vehicle’s electrical system.

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 long-lasting reliability, this alternator ensures exceptional durability and consistent performance, providing peace of mind for your vehicle’s electrical system.

The Bosch Premium Alternator, remanufactured to deliver 120 amps at 12 VDC, is engineered for peak 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 advanced technology, offering superior durability and longevity. Designed with a clockwise rotation direction, it seamlessly integrates into your vehicle’s electrical system, providing consistent power for essential functions. Whether you’re replacing a worn-out alternator or upgrading for enhanced reliability, this premium unit delivers exceptional value and performance you can trust.

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 to ensure consistent and reliable power delivery for essential functions.
• Engineered for peak performance under demanding conditions, providing dependable operation and enhanced durability.

This 140-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, featuring 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 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.
• Built for enhanced durability, the alternator’s advanced design minimizes heat dissipation, ensuring long-lasting efficiency even under demanding conditions.

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. With an amperage rating of 120A and a 12VDC voltage output, it provides consistent power to meet demanding electrical needs. Premium rare earth magnets enhance efficiency by increasing output without enlarging the unit, while its application-specific design guarantees an exact fit for seamless installation. Tested under extreme conditions for up to six months, this alternator withstands heat, vibration, and contaminants, maintaining maximum charge output even in harsh environments. As a globally recognized leader in innovation, Valeo combines advanced technology with proven reliability, offering a product that boosts fuel economy and eliminates voltage drops. Perfect for those seeking superior performance and durability, this alternator is a smart investment for your vehicle’s electrical system.

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

Valeo’s premium alternator, boasting an 80-amp output and 14 VDC voltage, is a top-tier solution for reliable electrical performance. Crafted with 100% new components and core, this alternator eliminates the risk of premature failure, offering superior durability compared to remanufactured units. Designed with application-specific parts for an exact fit, it ensures seamless integration into your vehicle’s electrical system. Featuring premium rare earth magnets, it delivers enhanced efficiency by increasing output without enlarging its size. Rigorous testing under extreme conditions for up to six months guarantees reliability even in the harshest environments, while its high resistance to heat, vibration, and contaminants ensures consistent maximum charge output. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and durability, making it a trusted choice for maintaining peak performance in your vehicle.

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 439070 is the original equipment part now available in the aftermarket.

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

This 120-amp alternator from WAI is a top-tier choice for reliable performance and durability. 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 overall efficiency. Designed with a high-power rectifier assembly featuring open junction press-fit diodes, this alternator stays cool even under demanding conditions. 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. Trust WAI for superior quality and long-lasting dependability in your vehicle’s electrical system.

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 durability and reliability, ensuring consistent performance under demanding conditions.

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 safeguards 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, keeps the unit running cool even under demanding conditions. 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. With WAI’s commitment to quality, this alternator delivers exceptional value and long-lasting dependability.

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 dependability in demanding conditions.

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

The charging system has been required as long as we have had a need for an electrical system and from research it’s been since the requirement of horns in motor vehicle in the early 1900’s. An alternator is a voltage generator that uses mechanical energy to rotate a set of magnets within a field of windings called a stator. The alternating current (AC) voltage created by the spinning magnetic field is converted into a usable direct current (DC) voltage with a rectifier and then regulated by a voltage regulator so that the voltage level in the electrical system stays within a specific operating range. The alternator provides all the voltage needed to operate a vehicle, the battery is only used as a reserve for heavier load conditions, as a voltage source for the engine starting system, and to supply a small amount of voltage to the electromagnets in the alternator which boosts the magnetic field in the alternator and increases voltage output.

Product Features:

• Application matched components ensure the charging system can be returned to like new condition.