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Valeo 439653 Alternator
| Brand | Valeo 439653 |
|---|---|
| Voltage | 12 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| Family | Valeo oe |
| Pulley Groove Quantity | 6 |
| Housing Material | Aluminium |
| Regulator Type | Internal |
| Amperage Rating | 180 |
| 8989 | 51 |
| Technical Number | Fgn18s012 |
| Product line | Alternator |
| Fits | Mercedes-Benz · 3 vehicles |
OE family design. Valeo OE construction for charging system replacement applications.
New unit. 100% new alternator, not remanufactured.
Internal regulation. Built with an internal regulator and internal fan for stable output.
Cross-references Gates 22721, WAI 22721N and 013 154 68 02 for the same application. See all 11.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Overview
Valeo alternator 439653 is a 12-volt charging component built as a Valeo OE family unit with an internal regulator and internal fan. It delivers 180 amps and uses a clockwise rotation with a 6-groove pulley for direct replacement applications.
Compatible with Mercedes-Benz charging system applications, this alternator is a 100% new unit that avoids the wear risk associated with remanufactured parts. Valeo 439653 is also identified by technical number FGN18S012.
Key Features
- 12-volt alternator with 180-amp output
- Internal fan and internal voltage regulator
- Clockwise rotation with 6-groove pulley
- Aluminium housing for charging system durability
- Valeo OE family construction
Detailed Description
Valeo 439653 is an OE-style alternator engineered for Mercedes-Benz electrical charging systems that require a 180-amp, 12-volt unit. The internal regulator and internal fan support stable charging performance, while the aluminium housing and clockwise rotation match the listed application requirements. This part number, 439653, cross-references common replacement numbers used for the same application, including Gates 22721 and WAI 22721N.
Fits 2015 Mercedes-Benz ML250, N/A. Fits 2016-2017 Mercedes-Benz GLE300d, N/A.
What It Helps Address
- Low charging output from a worn alternator
- Battery warning lights caused by charging system faults
- Voltage instability under electrical load
- Alternator noise or bearing-related charging issues
- Failure from aging original equipment components
Installation Notes
Verify pulley groove count, rotation direction, amperage rating, and connector fit before installation. Confirm the vehicle is listed for the exact year and model, including the 2016-2017 Mercedes-Benz GLE300d exception for Start/Stop-equipped vehicles. Professional installation and system testing after replacement are recommended.
Quality Assurance
Valeo is a global original equipment supplier for alternators and has specialized in electrical systems since 1923. This premium alternator is supplied as a new unit rather than a remanufactured part, and Valeo notes recognition for alternator innovation focused on reducing voltage drop and improving fuel economy.
| Year | Make | Model | Submodel | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2017 | Mercedes-Benz | GLE300d | 4Matic | — | — | 2.1L | L4 | — | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; Except Start/Stop Feature; 180 AMP; Alternator |
| 2016 | Mercedes-Benz | GLE300d | 4Matic | — | — | 2.1L | L4 | — | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; Except Start/Stop Feature; 180 AMP; Alternator |
| 2015 | Mercedes-Benz | ML250 | Bluetec 4Matic | AWD | Automatic | 2.1L | L4 | DIESEL | Valeo is the Original Equipment Manufacturer; Alternator |
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