Valeo Alternator 12V 140A New 439821

This Valeo alternator is a new 12V unit with a 140A charge current and part number 439821. It is listed as a Valeo unit with internal regulator, six-groove pulley, and quad leg alternator mount, so it is the sort of replacement that needs the mounting pattern and electrical connection checked carefully before purchase.

The alternator is supplied as a new unit, not remanufactured, and carries a one year warranty. Key dimensions include 61mm inside mounting legs, an 8mm / M8 pivot hole diameter, an 8mm adjusting hole diameter, and a 49mm pulley outside diameter. These measurements matter when matching the unit to the vehicle’s existing bracketry and belt setup.

It is described as a leading OE manufacturer and supplier for many euro vehicles, and the listed application preview includes Audi A3, Audi Q3, Skoda Octavia, Skoda Rapid, and Volkswagen Golf references. Even so, alternator fitment should always be confirmed against the part number 439821 and the vehicle’s exact charging system details before ordering.

Key Features

• New Valeo alternator
• 12V, 140A output
• Internal regulator
• Six-groove pulley
• Quad leg mount
• Four-point mounting

Specifications

• Brand: Valeo
• Part No.: 439821
• Product type: Alternator
• Voltage: 12V
• Charge current: 140A
• Power rating: 140A
• New / remanufactured: New
• Regulator type: Internal

Fitment guidance

• Audi A3
• Audi Q3
• Skoda Octavia
• Skoda Rapid
• Volkswagen Golf

Application and Buying Notes

Before ordering, compare the part number 439821 with the original alternator or the vehicle’s service information. The listed fitment preview points to Audi A3, Audi Q3, Skoda Octavia, Skoda Rapid, and Volkswagen Golf applications, but alternators must also match the mount style, pulley type, regulator arrangement, and connector style. In this case, the important checkpoints are the quad leg mount, four-point mounting, 12V system, 140A output, and the note that there is no connector for a revolution counter.

The physical dimensions are just as important as the electrical rating. This unit has 61mm inside mounting legs, an 8 / M8 pivot hole diameter, an 8mm adjusting hole diameter, and a 49mm outside pulley diameter with a 6-groove section. If any of those features differ from the original unit, installation may not be straightforward, even where the vehicle model appears similar.

A 140A alternator is selected for the system specification, not just the vehicle badge. The internal regulator and R 90 position / degree information also need to suit the existing setup. If the vehicle has been modified, or if the original alternator has a different mounting or connector arrangement, check carefully before fitting. At 7.65kg, this is a substantial component and should be handled and installed with care.

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 439821 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, Inside Mounting Legs 61mm, Pivot Hole Diameter 8 / M8, Pulley Outside Diameter 49mm, Regulator Type Internal, Voltage 12, New / Reman. New, Position / Degree R 90.

Additional published details for cross-checking include Connector / Clamp No Connector for Revolution Counter, Product Group 2 ALTERNATORS, Part No. 439821, Brand VALEO, Description Valeo Alternator 12V 140A, Adjusting Hole Diameter 8, Pin Code IR228, Power Rating (Amp) 140, Pulley Section 6 Groove.

Valeo Alternator 12V 140A. Part number 439821 should be checked first. Listed voltage is 12. Listed output rating is 140. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Quad Leg. 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 439821, 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 140 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include AUDI A3, AUDI A3 2012, AUDI A3 2013, AUDI A3 2014, SKODA OCTAVIA, SKODA OCTAVIA 2012. 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: Please confirm fitment using part number 439821, the 12V 140A specification, the quad leg four-point mounting arrangement, and the listed pulley and connector details before ordering.

FAQ

Is this alternator new or remanufactured?

This Valeo alternator is listed as new, not remanufactured. For this listing, part number 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. These details should still be checked against the original unit before ordering.

What is the voltage and output rating?

It is a 12V alternator with a 140A charge current and 140A power rating. For this listing, part number 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. 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 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. These details should still be checked against the original unit before ordering.

What mounting setup does it use?

It is listed with a quad leg alternator mount and four-point mounting, with 61mm inside mounting legs. For this listing, part number 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. These details should still be checked against the original unit before ordering.

What pulley details are listed?

The pulley outside diameter is 49mm and the pulley section is 6 groove. For this listing, part number 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. These details should still be checked against the original unit before ordering.

Which vehicles are mentioned in the fitment preview?

The fitment preview includes Audi A3, Audi Q3, Skoda Octavia, Skoda Rapid, and Volkswagen Golf references. For this listing, part number 439821 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A3, AUDI A3 2012, AUDI A3 2013. These details should still be checked against the original unit before ordering.