BMW Z3 Alternators and Starters

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.

CARQUEST Voltage Regulators are engineered and created by an automotive charging system manufacturer designed to meet or exceed OEM specifications.

Product Features:

• CARQUEST Voltage Regulators are designed to match OE fit, form and function. Fitted with critical OEM electronic components results in longer life expectancy.
• CARQUEST Voltage Regulators are mechanically designed with utilization of surface mount technology, robust mechanical housing, and consistent encapsulation to protect against moistures & vibration.
• CARQUEST Voltage Regulators uses surface mount technology and uniform encapsulation to protect against moistures & vibration.
• CARQUEST Voltage Regulators are 100% individually tested for all product functionalities that includes the proper voltage set-point, power capabilities, and other product specifications.

Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:

• Built for extremes! Our new and reman starters and alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold and high demand
• Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
• Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
• Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life

Product Features:

• Engineered to meet or exceed OEM specifications for a perfect fit and hassle-free installation.
• Premium grade solenoids contains materials specifically selected for best conductivity. High temperature cap ensures that the solenoid works flawlessly in high heat environments. High dielectric strength outer case resists shorting.
• Armatures have precision machined and upgraded steel shaft for improved durability and performance.
• 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.

Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle 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
• 100% remanufactured drive clutch assembly ensures lasting performance
• Armatures and commutators are 100% load tested
• New motor lead terminals and solenoid contacts are used to ensure maximum connectivity
• 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

Bosch Premium Starters are designed, built and tested to provide the ultimate in performance and reliability.

Product Features:

• Premium 100% New Starter
• Our new and reman starters and alternators are designed to perform equal to or better than the original equipment parts, that they replace
• Our new and reman starters and alternators are designed to be identical in fit and performance to original equipment parts
• Our new and reman starters and alternators utilize the latest manufacturing technologies and highest quality parts to ensure the best performance and longest life

The Bosch Premium Starter is engineered to deliver exceptional performance and reliability, making it a dependable choice for your vehicle’s ignition system. Designed with a clockwise (right) rotation and featuring a 9-tooth configuration, this starter ensures precise engagement and smooth operation. Operating at 12 VDC, it provides consistent power to get your engine running efficiently. Built to Bosch’s high standards, this remanufactured starter undergoes rigorous testing to ensure durability and long-lasting performance. Whether you’re replacing a worn-out starter or upgrading for better reliability, this premium component offers excellent value and compatibility with your vehicle’s electrical system.

Product Features:

Product Features:
• Engineered for exceptional performance and reliability, ensuring dependable ignition system operation.
• Designed with a 9-tooth configuration for precise engagement and smooth functionality.
• Operates at 12 VDC to provide consistent and efficient power for starting your engine.
• Remanufactured to Bosch’s high standards, undergoing rigorous testing for durability and long-lasting performance.
• Compatible with a wide range of vehicle electrical systems, offering excellent value and reliability.

As a recognized expert in Electrical Systems since 1923, Valeo is a global top supplier of original equipment starters. As an original equipment partner to all major car manufacturers, 1 in 3 vehicles worldwide are equipped with an original Valeo electrical system. Valeo premium starters are 100% new, eliminating the risk of premature failure.

Product Features:

• Valeo premium starters are 100% new products (not remanufactured)
• All components are 100% new eliminating premature failure for increased durability over remanufactured units
• Direct replacement ensuring a perfect fit and easy installation
• Extreme condition testing ensuring reliability under the harshest demands: noise, vibration, corrosion, durability
• Speed, temperature, and electrical measurement tests can undergo up to 40,000 cycles to ensure dependable performance
• Part Number 438094 is the original equipment part now available in the aftermarket.

Carquest Premium starters are premium constructed, original equipment (O.E.) replacement parts with industry-leading warranties. Our Carquest Premium starters are designed to meet or exceed OE specifications for fit, form and function. Our starters are remanufactured by an IATF/TS 16949 certified supplier that meets the highest standards achievable. We replace all wear components (brushes, bushings and needle 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.

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

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

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 components. 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.
• Engineered for seamless integration into your vehicle’s electrical system, ensuring consistent and reliable power delivery to essential components.
• Designed with a clockwise rotation direction for optimal compatibility and smooth operation within your vehicle’s setup.

The Bosch Premium Alternator, delivering a robust 120-amp output and operating at 14 VDC, is engineered for exceptional performance and reliability. Designed with precision, it ensures consistent power delivery to meet the demands of modern vehicles. Its clockwise rotation direction guarantees compatibility with a wide range of applications, making it a dependable choice for your vehicle’s electrical system. Built to Bosch’s high standards, this alternator is rigorously tested to withstand the toughest conditions, ensuring long-lasting durability and peak efficiency. Whether you’re replacing a worn-out unit or upgrading for better performance, this alternator offers excellent value and peace of mind for your automotive needs.

Product Features:

Product Features:
• Provides a robust 120-amp output to efficiently power modern vehicle electrical systems.
• Operates at 14 VDC for consistent and reliable energy delivery.
• Clockwise rotation direction ensures compatibility with a wide range of vehicle applications.
• Engineered with precision and rigorously tested for durability in tough conditions.
• Built to Bosch’s high standards for long-lasting performance and reliability.

The Bosch Premium Alternator, delivering 120 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 better performance, this premium component offers unmatched 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.

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.

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

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 Bosch Premium Alternator, delivering 80 amps and operating at 12 VDC, is engineered for exceptional performance and reliability. Designed with precision, it undergoes full-load testing to meet Bosch’s rigorous performance standards, ensuring dependable operation in demanding conditions. Unlike rebuilt units, this alternator is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, offering superior durability and longevity. Its clockwise rotation direction ensures compatibility with a wide range of vehicles, making it a reliable choice for your automotive needs. Built to last, this alternator provides outstanding value by combining advanced engineering with Bosch’s trusted reputation for quality.

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 compatibility with a wide range of vehicles, ensuring seamless integration and reliable performance.
• Delivers consistent and dependable operation even in demanding conditions, thanks to Bosch’s precision engineering.

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, remanufactured to deliver 90 amps of power, is engineered for exceptional performance and reliability. Designed with precision, it undergoes full-load testing to meet Bosch’s stringent performance standards, ensuring dependable operation in demanding conditions. Unlike rebuilt units, this alternator is 100% factory-tested and remanufactured using high-quality materials and cutting-edge technology, offering superior durability and longevity. With a 12 VDC voltage rating and 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 better performance, this unit provides 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 into your vehicle’s electrical system with a precise 12 VDC voltage rating and clockwise rotation direction.
• Engineered for demanding conditions, offering reliable performance and durability for long-term use.

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.

The Valeo premium alternator, delivering 140 amps at 12 VDC, is a top-tier solution for reliable electrical performance. Built entirely with new components, this alternator eliminates the risk of premature failure often associated with remanufactured units, ensuring long-lasting durability. Designed with application-specific parts for an exact fit, it features premium rare earth magnets that enhance output efficiency without increasing size. Tested rigorously for up to six months under extreme conditions, it guarantees reliability even in the harshest environments, resisting heat, vibration, and contaminants to maintain maximum charge output. As the original equipment part now available in the aftermarket, this alternator combines innovation and quality, backed by Valeo’s legacy as a global leader in electrical systems since 1923. Perfect for demanding electrical needs, it offers superior performance and fuel economy benefits, making it an excellent investment for 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 439507 is the original equipment part now available in the aftermarket.

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. Its advanced voltage regulator protection guards against transient voltage spikes, preventing potential battery damage while maintaining low heat dissipation for enhanced longevity. 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 is rigorously tested, and a printed copy of the test results is included, giving you confidence in its performance from the very first use. Whether you’re upgrading or replacing, this alternator delivers exceptional value and peace of mind.

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 performance, ensuring long-lasting reliability under demanding conditions.

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 Valeo premium alternator, boasting a 90-amp output and 12 VDC voltage, is a top-tier solution for reliable electrical performance. Crafted with 100% new components and core, it eliminates the risk of premature failure, offering superior durability compared to remanufactured units. Designed 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 delivers enhanced efficiency without increasing size, making it a compact yet powerful choice. 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 charge output. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and quality, backed by decades of expertise in electrical systems. Ideal for those seeking performance, durability, and fuel economy, this alternator is a smart investment for your vehicle’s electrical needs.

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 439397 is the original equipment part now available in the aftermarket.

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.