Valeo Alternator 12V 220A 439688

The Valeo Alternator 12V 220A, part number 439688, is a new rotating electrical component supplied as an each unit. It is rated at 220 amps and uses a 12-volt system, with an internal regulator and direct mount arrangement for direct fastening applications.

This alternator is listed with a 51mm pulley outside diameter and a 6 groove pulley section. It is specified with no connector for revolution counter, and the unit weight is 7.74kg, which can help when comparing against an existing alternator during removal and replacement.

Valeo is identified here as the brand and as a leading OE manufacturer and supplier for many euro vehicles. The unit is intended for applications that call for Valeo unit make compatibility, and the supplied fitment data includes Mercedes-Benz S-Class applications, including model years shown from 2011 to 2013.

Key Features

• 12V alternator rated at 220A
• New unit, supplied each
• Internal regulator
• Direct mount with direct fastening
• 6 groove pulley section
• 51mm pulley outside diameter

Specifications

• Type: Alternator
• Brand: Valeo
• Part No.: 439688
• Voltage: 12V
• Power rating: 220A
• Alternator charge current: 220A
• Regulator type: Internal
• Pulley section: 6 groove

Fitment notes

• Mercedes-Benz S-Class
• Mercedes-Benz S-Class 2011
• Mercedes-Benz S-Class 2012
• Mercedes-Benz S-Class 2013

Application and Buying Notes

Before ordering, check the part number 439688 against the alternator currently fitted to the vehicle, along with the 12V electrical system and 220A output requirement. The pulley details also matter: this unit is listed with a 51mm outside diameter and a 6 groove pulley section, so the belt layout needs to match the vehicle setup.

The mounting style is direct with direct fastening, so the physical mounting points should be matched carefully to the existing unit. The alternator also has an internal regulator, which is an important point when comparing against the vehicle’s charging system and existing connector arrangement.

The connector detail is specific as well: this unit is listed with no connector for revolution counter. If the removed alternator has a different connection arrangement, that should be confirmed before fitment. Matching the unit make to Valeo and checking the unit weight of 7.74kg can also help when comparing replacements side by side.

The supplied fitment preview includes Mercedes-Benz S-Class applications, including 2011, 2012 and 2013 examples. Even where the model family appears suitable, the safest approach is to confirm the exact application by part number, mounting style, pulley specification and electrical rating before purchase.

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 439688 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, Pulley Outside Diameter 51mm, Regulator Type Internal, Voltage 12, New / Reman. New, Position / Degree R 0, Connector / Clamp No Connector for Revolution Counter.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 439688, Brand VALEO, Description Valeo Alternator 12V 220A, Power Rating (Amp) 220, Pulley Section 6 Groove, Suits Unit Make Valeo, Alternator Mount Direct, Alternator Charge Current [A] 220, Fastening Type Direct fastening.

Valeo Alternator 12V 220A. Part number 439688 should be checked first. Listed voltage is 12. Listed output rating is 220. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Direct. 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 439688, 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.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 220 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number 439688, 12V system requirement, 220A rating, 51mm 6 groove pulley, direct mount/direct fastening details, and the listed application before ordering.

FAQ

What is the part number for this alternator?

The part number listed is 439688. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.

What voltage and output does this alternator have?

It is a 12V alternator rated at 220A. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.

Is this a new or remanufactured unit?

This is listed as new, not remanufactured. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.

What pulley specification does it use?

It has a 51mm pulley outside diameter and a 6 groove pulley section. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.

What fitment information is provided?

The supplied fitment preview includes Mercedes-Benz S-Class applications, including 2011, 2012 and 2013 examples. Final fitment should still be confirmed against part number 439688 and the alternator specifications. For this listing, part number 439688 is the main reference point. Listed voltage is 12. Listed output rating is 220. Published fitment references include MERCEDES-BENZ S-CLASS, MERCEDES-BENZ S-CLASS 2011, MERCEDES-BENZ S-CLASS 2012. These details should still be checked against the original unit before ordering.