Valeo Alternator 12V 90A Part No. 439544

The Valeo Alternator 12V 90A, part no. 439544, is a new rotating electrical unit supplied as each. It is a 12 volt alternator with a 90 amp charge current, a CW rotation, and a 5 groove pulley with 52mm outside diameter.

This unit uses a pad alternator mount with direct fastening, 150mm mount centres, 142mm mount leg thickness, an 8mm adjusting hole diameter, and a 9mm pivot hole diameter. The regulator type is internal, and the connector is listed as no connector for revolution counter.

Valeo is listed as a leading OE manufacturer and supplier for many euro vehicles. The alternator is identified with pin code IR229, weighs 5.56kg, and carries a one year warranty.

Key Features

• New alternator
• 12V system
• 90A charge current
• 5 groove pulley
• CW rotation
• Internal regulator

Specifications

• Brand: Valeo
• Part No.: 439544
• Type: Alternator
• Voltage: 12
• Power rating: 90 amp
• Charge current: 90A
• Pulley outside diameter: 52mm
• Pulley section: 5 groove

Fitment guidance

• Supplied fitment data references Mercedes-Benz applications, including A-Class and B-Class entries.
• A-Class applications are listed across model years 2004 through 2012 in the supplied fitment preview.
• B-Class applications are listed in the supplied fitment preview, including a 2005 entry.
• Confirm the vehicle application against the part number 439544 before ordering.
• Check that the alternator mount, pulley section, rotation, and connector arrangement match the existing unit on the vehicle.

Application and Buying Notes

For a correct match, compare the part number 439544, the Valeo brand, and the physical details before purchase. This alternator is 12V, 90A, uses a 5 groove pulley, and is listed with CW rotation, so those points need to line up with the vehicle’s existing charging system.

The mounting details matter just as much as the electrical rating. This unit has a pad mount, direct fastening, 150mm mount centres, a 142mm mount leg thickness, an 8mm adjusting hole diameter, and a 9mm pivot hole diameter. Those measurements should be checked against the removed alternator or the vehicle application data.

The connector detail is also important. This alternator is listed with no connector for revolution counter, so it should only be considered where that arrangement suits the vehicle. If the existing alternator uses a different connector style, the part may not be suitable even if the voltage and amperage are close.

The unit is new, weighs 5.56kg, and has an internal regulator. Those are useful checks when replacing an alternator on a euro vehicle, especially where the original unit has a specific regulator style or mounting layout. Use the part number, pin code IR229, and the mounting measurements together for the best confirmation.

If you are matching a Mercedes-Benz A-Class or B-Class application, do not rely on the model name alone. The supplied fitment information is limited to those vehicle families and selected year references, so the safest approach is to confirm the exact application against the existing alternator and the listed dimensions before ordering.

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 439544 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 Centres A 150mm, Pin Code IR229, Power Rating (Amp) 90, Pulley Section 5 Groove, Rotation CW, Voltage 12, New / Reman. New.

Additional published details for cross-checking include Fastening Type Direct fastening, Weight 5.56kg, Product Group 1 ROTATING ELECTRICAL, Part No. 439544, Brand VALEO, Description Valeo Alternator 12V 90A, Adjusting Hole Diameter 8, Mount Leg Thickness 142mm, Pivot Hole Diameter 9, Pulley Outside Diameter 52mm.

Valeo Alternator 12V 90A. Part number 439544 should be checked first. Listed voltage is 12. Listed output rating is 90. 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 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number 439544, 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 90 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include MERCEDES-BENZ A-CLASS, MERCEDES-BENZ A-CLASS 2004, MERCEDES-BENZ A-CLASS 2005, MERCEDES-BENZ A-CLASS 2006. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

Compatibility note: Confirm compatibility by matching part number 439544, the Valeo brand, 12V/90A rating, 5 groove pulley, CW rotation, pad mount, and the listed connector and mounting measurements against the vehicle’s existing alternator and application details.

FAQ

What is the part number for this alternator?

The part number listed is 439544.

Is this alternator new or remanufactured?

It is listed as new.

What are the electrical specifications?

It is a 12V alternator with a 90A charge current and 90 amp power rating.

What pulley and rotation details are listed?

The alternator has a 5 groove pulley with a 52mm outside diameter and CW rotation.

What mounting details are supplied?

It is listed with a pad mount, direct fastening, 150mm mount centres, 142mm mount leg thickness, an 8mm adjusting hole diameter, and a 9mm pivot hole diameter.

What vehicles are mentioned in the fitment information?

The supplied fitment information references Mercedes-Benz A-Class and B-Class applications, including A-Class entries from 2004 through 2012 and a B-Class 2005 entry in the preview.