2018 Volkswagen Passat Alternators

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:

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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 delivers exceptional performance and reliability, making it a top choice for your vehicle’s electrical system. With a robust 140-amp output and 12 VDC voltage, this alternator ensures consistent power delivery for demanding applications. 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 rigorous use. Choose Bosch for a premium alternator that combines superior functionality 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 for demanding applications, the 140-amp output ensures consistent and reliable power delivery to support your vehicle’s electrical needs.
• Clockwise rotation direction enhances compatibility and seamless integration with your vehicle’s existing system.

The Valeo premium alternator, delivering 110 amps at 12 VDC, is a top-tier choice for reliable electrical performance. Built entirely from 100% new components, this alternator eliminates the risks associated with remanufactured units, ensuring enhanced durability and long-term dependability. Designed with premium rare earth magnets, it achieves superior output efficiency without increasing size, making it a compact yet powerful solution. Engineered for exact fitment, this alternator is application-specific and rigorously tested under extreme conditions for up to six months, guaranteeing reliability even in the harshest environments. Its high resistance to heat, vibration, and contaminants ensures consistent maximum charge output, meeting the demands of modern electrical systems. As an original equipment part (Part Number 439500) now available in the aftermarket, this Valeo alternator represents the pinnacle of innovation, offering improved fuel economy and eliminating voltage drops. Trust in Valeo’s legacy of excellence since 1923 for a product that delivers unmatched performance and value.

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 439500 is the original equipment part now available in the aftermarket.