Valeo 439823 Alternator

Reliable Alternator for Mercedes-Benz CL550, CLS550, E550, and S550

The Valeo Alternator part number 439823 is designed to provide consistent 12-volt electrical power for your Mercedes-Benz CL550, CLS550, E550, and S550 models. Engineered with durable aluminium housing and an internal fan, this alternator supports efficient charging and reliable vehicle operation.

• Voltage: 12V for standard automotive electrical systems
• Internal fan type for optimized cooling
• Clockwise rotation direction
• 6-groove pulley for secure belt engagement
• Amperage rating of 180A to meet high electrical demands
• Aluminium housing for lightweight durability
• Valeo OE family ensuring original equipment quality
• Technical number: Fgn18s110

Valeo Alternator Product Line Overview

The Valeo Alternator product line focuses on delivering original equipment (OE) quality components that meet manufacturer specifications. This alternator, part of the Valeo OE family, is engineered to match the performance and reliability standards expected in Mercedes-Benz vehicles, ensuring compatibility and longevity.

Detailed Product Description

This Valeo alternator 439823 is built with a 12-volt electrical system in mind, suitable for Mercedes-Benz models such as the CL550, CLS550, E550, and S550. The internal fan design helps maintain optimal operating temperatures by efficiently dissipating heat during operation. Its clockwise rotation and 6-groove pulley ensure proper belt alignment and power transmission. The aluminium housing provides a balance of strength and weight reduction, contributing to overall vehicle efficiency. With a 180-amp rating, this alternator supports the electrical load of modern luxury vehicles, including advanced electronics and accessories.

Common Issues Addressed by This Alternator

• Failure to charge the battery properly
• Intermittent electrical system malfunctions
• Dimming or flickering headlights and interior lights
• Warning lights related to charging system on the dashboard
• Unusual noises from the engine bay due to worn alternator components

Installation Notes and Tips

When installing the Valeo alternator 439823, ensure the vehicle battery is disconnected to prevent electrical shorts. Verify the clockwise rotation direction matches the original alternator. Confirm the 6-groove pulley aligns with the serpentine belt system on your Mercedes-Benz CL550, CLS550, E550, or S550. Proper torque specifications should be followed to secure the alternator housing and pulley. It is recommended to inspect the belt and tensioner for wear during replacement to maintain optimal performance.

Quality Assurance and Warranty

Valeo alternators are manufactured to meet OE standards, ensuring reliable performance and durability. This alternator is part of the Valeo OE family, reflecting strict quality control and engineering precision. While specific warranty details are not provided here, Valeo products typically come with manufacturer-backed warranties to cover defects in materials and workmanship.