2003 BMW 745Li Alternator Parts

Keep Your 2003 BMW 745Li in Top Shape with a Quality Alternator Part

When it comes to maintaining or upgrading your 2003 BMW 745Li, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Alternator Part for your 745Li. We currently carry a top Alternator Part in stock that is built to last. Whether you’re replacing a damaged Alternator Part or looking to upgrade, our selection for the 2003 BMW 745Li ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Starter Parts to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2003 BMW 745Li running smoothly and looking great.

Essential 2003 BMW 745Li Alternator Parts

WAI – Valeo Ir/If 180 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty (Part No.11358N)

Valeo Ir/If 180 Amp/12 Volt, Cw, 6-Groove Pulley, Limited Lifetime Warranty

from

$431.99
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.
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Bosch – Alternator: Remanufactured, 180 Amps, 2 Year Limited Warranty (Part No.AL9357X)

Alternator: Remanufactured, 180 Amps, 2 Year Limited Warranty

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$379.99
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:


    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.
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Valeo – Alternator: New, 180 Amps (Part No.439537)

Alternator: New, 180 Amps

from

$434.99
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.
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Most Popular Alternator for 2003 BMW 745Lis

Enhance your 2003 BMW 745Li with this popular Alternator we have in stock, for $434.99.

Valeo – Alternator: New, 180 Amps (Part No.439537)

Alternator: New, 180 Amps

from

$434.99
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.
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FAQs for 2003 BMW 745Li Alternator Parts

What’s the price range for 2003 BMW 745Li Alternator Parts?

We currently have just one Alternator Parts for the 2003 BMW 745Li in stock: Alternator: New, 180 Amps and it costs $434.99.

Does Advance Auto Parts sell Alternator Parts for other BMW 745Li model years?

Yes, we carry Alternator Parts for 2 model years of BMW 745Lis between 2002 and 2005. The following model years are the most popular for Alternator Part purchases: 2005, 2004, and 2002.

Does Advance Auto Parts sell Alternator Parts for any other 2003 BMW models?

Yes. We stock Alternator Parts for 15 other popular 2003 BMW models. Some of the most popular are 2003 325i Alternator Parts, 2003 M3 Alternator Parts, 2003 325xi Alternator Parts, 2003 530i Alternator Parts, and 2003 330i Alternator Parts.

What types of Alternator Parts do you sell for my 2003 BMW 745Li?

We currently have just 1 Alternator Part in stock for a 2003 BMW 745Li, and as of 11/2/25, it is an Alternator.

Can I get help with 2003 BMW 745Li Alternator Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about BMW Alternator Parts and more.

What is your return policy for BMW 745Li Alternator Parts?

Advance Auto Parts keeps returns simple. For new BMW 745Li Alternator Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.