BMW 525xi Alternators and Starters

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

Valeo’s 180 Amp alternator is a premium solution designed to deliver exceptional performance and reliability. Built with 100% new components, this alternator eliminates the risks associated with remanufactured units, ensuring long-lasting durability. Engineered with application-specific parts for a precise fit, it features premium rare earth magnets that enhance output efficiency without increasing size. Tested under extreme conditions for up to six months, it guarantees reliable operation even in the harshest environments. With a 12 VDC voltage rating and clockwise rotation, this alternator is tailored to meet demanding electrical requirements. Its high resistance to heat, vibration, and contaminants ensures consistent maximum charge output, making it an ideal choice for maintaining optimal vehicle performance. As a product of Valeo, a trusted leader in electrical systems since 1923, this alternator combines innovation and quality to boost fuel economy and eliminate voltage drops, offering unmatched value and peace of mind.

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

The Bosch Premium Alternator, delivering 170 amps and 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, offering superior durability and longevity. Designed with a clockwise rotation direction, it is built to handle the toughest electrical demands while maintaining consistent power output. Whether you’re replacing a worn-out alternator or upgrading for better performance, this premium 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.
• Engineered for consistent power output, ensuring reliable performance under demanding electrical conditions.
• Designed with a clockwise rotation direction to optimize compatibility and efficiency in applicable systems.

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 superior durability compared to remanufactured units. Featuring premium rare earth magnets, it achieves higher output without increasing size, enhancing efficiency and fuel economy. With an amperage rating of 120A and a 12VDC voltage, this alternator is tailored for exact fitment and application-specific needs, backed by rigorous testing under extreme conditions for up to six months. Its high resistance to heat, vibration, and contaminants ensures consistent charge output even in the harshest environments. As the original equipment part now available in the aftermarket, Valeo’s alternator combines innovation and reliability, making it a smart investment for maintaining peak vehicle performance.

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 439398 is the original equipment part now available in the aftermarket.

Rein OE quality bolts kits fit European vehicles the way the original manufacturer intended. Designed to be direct replacements for the original bolts are identical to OEM. Supplied with all the necessary bolts and torque specs to ensure that the job is done right.

Product Features:

• Includes all the bolts needed to complete the job.
• Comes with torque specs to make sure each bolt is properly tighten.
• Manufactured to strict engineering standards/specifications in materials and tolerances.
• Aluminum bolts are torque to yield and must be replaced once they are released.

This Litens supplied OAP is manufactured by the original equipment (O.E.) manufacturer. This replacement pulley is exact in all form, fit, and performance characteristics as the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). Under rapid engine deceleration, the pulley disengages the alternator from the belt drive system, allowing the alternator to freewheel, re-engaging when the RPM increases. The OAP alternator pulley ensures smooth, quiet performance. The OAP is designed as a sacrificial part of the front-end accessory drive system, protecting other belt driven component. Under normal driving conditions, the original pulley will require replacement in approximately 70,000 – 90,000 miles. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Product Features:

• Original Equipment Design
• Protects the front-end accessory drive components
• New seal cap included with the OAP (Always ensure the cap is installed after installation)
• Tools Required – 17mm Spline Bit Driver (included)
• Installation instructions included

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

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 438272 is the original equipment part now available in the aftermarket.

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

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.

Carquest Professional starters are 100% new units that are built to meet or exceed original equipment (O.E.) specifications. Our new starters are engineered and built by an IATF/TS 16949 certified supplier that meets the highest standards achievable. Carquest Professional starters are re-engineered to include improvements and enhancements (where applicable) to the OE design to extend longevity and service life. Our new starters are built with all new components and are 100% triple-tested to ensure high quality that is 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
• Manufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
• Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
• All new components are utilized to ensure long service life
• Internal electronics are upgraded for heavy duty reliability (where applicable)
• Armatures and commutators are 100% load tested
• 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
• Designed to meet or exceed OE specifications for fit, form and function
• Manufactured by an IATF/TS 16949 supplier that meets or exceeds the highest standards in the industry
• Housings are 100% new with dimensions computer gauged and measured to ensure proper fitment
• All new components are utilized to ensure long service life
• Internal electronics are upgraded for heavy duty reliability (where applicable)
• Armatures and commutators are 100% load tested
• 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

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.

ALTERNATOR PULLEY