Mercedes-Benz S400 Alternators and Starters

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

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

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.

The Valeo premium alternator, boasting a robust 180-amp output and 12 VDC voltage, is engineered for superior performance and reliability. As a 100% new product, it eliminates the risks associated with remanufactured units, ensuring enhanced durability and long-term functionality. Designed with premium rare earth magnets, this alternator delivers increased efficiency without enlarging its size, making it ideal for modern vehicles with high electrical demands. Its application-specific design guarantees an exact fit, while rigorous testing under extreme conditions for up to six months ensures reliability in the harshest environments. With high resistance to heat, vibration, and contaminants, this alternator maintains maximum charge output even under challenging circumstances. As part of the Valeo OE family, Part Number 439682 is the original equipment solution now available in the aftermarket, offering unmatched quality and innovation. Perfect for drivers seeking improved fuel economy and consistent performance, this alternator is a testament to Valeo’s legacy of excellence in electrical systems.

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 439682 is the original equipment part now available in the aftermarket.