Valeo Alternator 12V 180A Part No. 439653

This Valeo alternator is a new 12V unit rated at 180A, supplied as an each item under part number 439653. It uses a pad alternator mount with direct fastening, an internal regulator, and a 6 groove pulley, making the key identifiers easy to check before ordering.

The unit is listed with a mount leg thickness of 56mm, mount centres C to C of 163mm, mount centres B of 172mm, and a pulley outside diameter of 50mm. It weighs 7.7kg and carries a one year warranty, so the physical mounting details and charging specification are both clearly defined.

A regulator plug with rear entry is noted, along with “No Connector for Revolution Counter” and the warning that it is not interchangeable with 439704. For a charging component like this, matching the part number and the connector and mounting details is the safest way to avoid delays or returns.

Valeo is identified here as a leading OE manufacturer and supplier for many euro vehicles. That matters because alternators are often chosen on exact mounting and electrical configuration rather than general appearance, especially where the unit must suit the original vehicle arrangement closely.

Key Features

• New alternator
• 12V system voltage
• 180A charge current
• 6 groove pulley
• Internal regulator
• Pad mount with direct fastening

Specifications

• Part number: 439653
• Brand: Valeo
• Product type: Alternator
• Unit of measure: Each
• Power rating: 180A
• Voltage: 12V
• Pulley section: 6 groove
• Pulley outside diameter: 50mm

Fitment guidance

• Fitment data references Mercedes-Benz applications and 5-T applications across model years 2006 to 2017.
• Referenced Mercedes-Benz model groups include C-Class, CLS, E-Class, GLE, M-Class, SLK, Sprinter 3-T, Sprinter 5-T, Valente, Viano, and Vito / Mixto.
• The fitment preview also includes 5-T applications from 2006 through 2017.
• Use the exact part number, mounting measurements, pulley type, and connector details to confirm suitability before ordering.

Application and Buying Notes

When replacing an alternator, the practical checks are just as important as the electrical rating. This Valeo unit is 12V and 180A, with a 6 groove pulley, internal regulator, and rear entry regulator plug, so the matching unit needs to share those core details as well as the mounting arrangement.

The mounting dimensions are specific: mount leg thickness 56mm, mount centres C to C 163mm, and mount centres B 172mm. The alternator also uses pad mounting with direct fastening, which means the physical bracket layout should be checked against the existing unit rather than relying on general model naming alone.

The note that it is not interchangeable with 439704 is important. Even where a vehicle appears in the supported application list, alternators can differ by plug position, pulley configuration, mounting points, or regulator setup, so confirming the exact part number is the safest step.

If you are comparing a removed alternator, check the rear entry regulator plug arrangement and the fact that there is no connector for the revolution counter. Those details, together with the 50mm pulley outside diameter and 7.7kg weight, help confirm whether this is the correct replacement for the vehicle in front of you.

For Mercedes-Benz applications and 5-T listings shown against this part, the best buying approach is to verify the vehicle details, then match the original alternator against the listed specifications. That includes voltage, amperage, mounting style, and the part number 439653 before installation is attempted.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number 439653 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty One Year, Mount Leg Thickness 56mm, Power Rating (Amp) 180, Pulley Section 6 Groove, Suits Unit Make Valeo, Note Regulator plug - rear entry - Not Inter changeable with 439704, Mount Cnt to Cnt 163mm, Alternator Charge Current [A] 180.

Additional published details for cross-checking include Connector / Clamp No Connector for Revolution Counter, Product Group 2 ALTERNATORS, Part No. 439653, Brand VALEO, Description Valeo Alternator 12V 180A, Mount Centres B 172mm, Pin Code IR228, Pulley Outside Diameter 50mm, Regulator Type Internal.

Valeo Alternator 12V 180A. Part number 439653 should be checked first. Listed voltage is 12. Listed output rating is 180. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Pad. Regulator type is Internal. Pulley configuration is 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 439653, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

Compatibility note: Please confirm fitment with part number 439653, the mounting measurements, pulley details, regulator plug arrangement, and the stated application list before ordering. Do not rely on vehicle name alone, as alternators can differ by mounting and connector configuration.

FAQ

What is the part number for this Valeo alternator?

The part number is 439653.

What voltage and output does this alternator have?

It is a 12V alternator rated at 180A.

Is this alternator new or remanufactured?

It is listed as new.

What type of pulley does it use?

It uses a 6 groove pulley with a pulley outside diameter of 50mm.

Does it have an internal regulator?

Yes. The regulator type is internal, and the note also states the regulator plug is rear entry.

What should I check before buying to confirm fitment?

Check the part number 439653, the 12V 180A rating, the pad mount with direct fastening, the mounting measurements, the 6 groove pulley, and the rear entry regulator plug, then compare those details with the removed unit and vehicle application.