2004 BMW 545i Alternators

The Bosch Premium Alternator, delivering a robust 180-amp output at 12 VDC, 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 standard rebuilds, 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 and advanced construction make it a reliable choice for maintaining your vehicle’s electrical system. Built to last, this alternator provides excellent value by combining premium craftsmanship with trusted performance.

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.
• Engineered for demanding conditions, ensuring reliable operation and consistent performance under heavy electrical loads.
• Precision-designed clockwise rotation enhances compatibility and efficiency within the vehicle’s electrical system.

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 award-winning technology that eliminates voltage drops and enhances fuel economy. This 100% new alternator, featuring premium rare earth magnets, ensures superior efficiency without increasing size, while its application-specific design guarantees an exact fit for seamless installation. Tested under extreme conditions for up to six months, it withstands heat, vibration, and contaminants to maintain maximum charge output even in the harshest environments. With a clockwise rotation direction and original equipment quality, this aftermarket part (Part Number 439537) offers unmatched durability and reliability, eliminating the risks associated with remanufactured units. Ideal for demanding electrical systems, this alternator is a testament to Valeo’s commitment to quality and innovation, providing long-lasting value and peace of mind 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 439537 is the original equipment part now available in the aftermarket.

This 180-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 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 very first use. Whether you’re upgrading or replacing, this alternator offers superior quality 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.
• Built for enhanced durability, the alternator’s advanced design minimizes heat dissipation, ensuring long-lasting performance even under demanding conditions.