Valeo Alternator 12V 140A 6 Groove 439657

The Valeo alternator listed here is a new 12V unit with a 140A power rating and part number 439657. It is supplied as each and uses an internal regulator, with a 6 groove pulley and direct fastening mount.

This alternator is identified as a Valeo unit with direct alternator mount and direct fastening type. The connector note states no connector for revolution counter, so the existing application should be checked carefully against the vehicle’s charging system and wiring arrangement before ordering.

Valeo is noted as a leading OE manufacturer and supplier for many euro vehicles. For buyers comparing replacement charging components, the key checks here are the 12V system, 140A charge current, 62mm pulley outside diameter, and the listed part number 439657.

Key Features

• New alternator
• 12V system
• 140A charge current
• Internal regulator
• 6 groove pulley
• Direct mount and direct fastening

Specifications

• Brand: Valeo
• Product type: Alternator
• Voltage: 12V
• Power rating: 140A
• Charge current: 140A
• Condition: New
• Warranty: One year
• Pulley outside diameter: 62mm

Fitment information supplied

• Audi A4
• Audi A5
• Audi Q5

Application and Buying Notes

Before buying, confirm the part number 439657 against the removed unit or the vehicle catalogue entry, as that is the safest way to match a replacement alternator. Also check the 12V system, 140A output, and the 6 groove pulley arrangement, since these details need to line up with the vehicle’s charging setup.

The alternator is listed with a 62mm pulley outside diameter, internal regulator, direct mount, and direct fastening. Those details matter because alternators can look similar while differing in pulley size, regulator arrangement, or mounting style, any of which can stop a direct installation.

The connector note is specific: no connector for revolution counter. If the original unit uses a different electrical connection or a revolution counter connection, that should be verified before purchase. This is especially important on euro vehicles where charging system variations can occur within the same model family.

A one year warranty is listed, and the unit is new rather than remanufactured. If you are replacing a failed alternator, it is still worth comparing the old unit’s physical layout, connector style, and mounting points with the listed details so the replacement matches the original application as closely as possible.

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 439657 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 62mm, 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. 439657, Brand VALEO, Description Valeo Alternator 12V 140A, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Valeo, Alternator Mount Direct, Alternator Charge Current [A] 140, Fastening Type Direct fastening.

Valeo Alternator 12V 140A. Part number 439657 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 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 439657, 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.

Compatibility note: Confirm fitment by matching part number 439657, the 12V 140A specification, the 6 groove pulley, the direct mount/direct fastening setup, and the listed application details before ordering.

FAQ

What is the part number for this alternator?

The listed part number is 439657. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 140A power rating and 140A charge current. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

Does it use an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

What pulley details are listed?

The pulley outside diameter is 62mm and the pulley section is 6 groove. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment data?

The fitment data supplied includes Audi A4, Audi A5, and Audi Q5. For this listing, part number 439657 is the main reference point. Listed voltage is 12. Listed output rating is 140. Published fitment references include AUDI A4, AUDI A4 2007, AUDI A4 2008. These details should still be checked against the original unit before ordering.