2017 Mercedes-Benz GLS350d Alternators

Valeo’s 250 Amp alternator is a premium, 100% new product designed to deliver unmatched durability and performance. Unlike remanufactured units, this alternator features all-new components and a core that eliminates the risk of premature failure, ensuring long-lasting reliability. Engineered with application-specific precision, it guarantees an exact fit for seamless installation. Utilizing premium rare earth magnets, it achieves superior efficiency by increasing output without enlarging its size. Tested rigorously under extreme conditions for up to six months, this alternator is built to withstand heat, vibration, and contaminants, maintaining maximum charge output even under the harshest demands. Operating at 12 VDC with a clockwise rotation, it is the original equipment part (Part Number 439891) now available in the aftermarket. As a product of Valeo, a global leader in electrical systems since 1923, this alternator not only boosts fuel economy but also ensures consistent performance, making it a top-tier choice 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 439891 is the original equipment part now available in the aftermarket.