Valeo Alternator 12V 140A 439791

The Valeo 12V 140A alternator, part number 439791, is a new rotating electrical unit supplied as each. It is rated at 140 amps and uses an internal regulator, which are two of the key details to check when comparing it with the alternator already fitted to the vehicle.

This unit is listed with a 6 groove pulley, 50mm pulley outside diameter, quad leg alternator mount and four-point mounting. It is also marked with pin code IR201 and a right-hand 90 degree position reference, so matching the physical layout matters as much as matching the electrical rating.

Valeo is noted here as a leading OE manufacturer and supplier for many euro vehicles. The fitment data provided includes a range of Audi, Skoda and Volkswagen applications, but the exact vehicle match still needs to be confirmed against the part number, mounting style and connector arrangement before ordering.

Key Features

• 12V alternator with 140A output
• New unit supplied each
• Internal regulator
• 6 groove pulley
• Quad leg mount
• Four-point mounting

Specifications

• Brand: Valeo
• Product type: Alternator
• Voltage: 12V
• Power rating: 140A
• Alternator charge current: 140A
• Condition: New
• Unit of measure: Each
• Warranty: One year

Fitment details supplied

• Audi A3 applications are included in the fitment data provided, with model years shown across 2012 to 2017.
• Audi Q3 applications are included in the fitment data provided, with model years shown across 2014 to 2017.
• Skoda Kodiaq applications are included in the fitment data provided, including 2018.
• Skoda Octavia applications are included in the fitment data provided, with model years shown across 2012 to 2018.
• Skoda Superb applications are included in the fitment data provided, including 2015.
• Volkswagen Amarok applications are included in the fitment data provided, with model years shown across 2010 to 2020.

Application and Buying Notes

Before ordering, confirm the alternator part number 439791 against the existing unit, along with the 12V system voltage and 140A output. Those three details are usually the quickest way to rule in or rule out a replacement, but the mounting pattern and pulley setup still need to line up on the vehicle.

This alternator uses a 6 groove pulley, a 50mm pulley outside diameter, a quad leg mount and four-point mounting. If the original alternator uses a different pulley section, mount shape or fastening arrangement, the unit may not suit even if the vehicle make appears in the fitment list.

The connector detail also matters. This unit is listed with no connector for revolution counter, so the plug arrangement should be checked carefully against the vehicle loom and the removed alternator before purchase. The internal regulator is another important point, as regulator style needs to match the charging system specification already fitted.

If you are comparing options for an Audi, Skoda or Volkswagen application, use the listed fitment only as a guide and verify it against the actual vehicle identification details. Model name alone is not enough when alternators can vary by engine, build date, mounting style and connector configuration.

For workshop or retail replacement work, the weight of 7.67kg can also be a useful practical check when handling the unit or comparing it with the old part. Keep the removed alternator on hand until the replacement has been physically matched for pulley, mount, connector and charge rating.

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 439791 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, Power Rating (Amp) 140, Pulley Section 6 Groove, Suits Unit Make Valeo, Alternator Mount Quad Leg, Alternator Charge Current [A] 140, Fastening Type Four-point mounting, Weight 7.67kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. 439791, Brand VALEO, Description Valeo Alternator 12V 140A, Pin Code IR201, Pulley Outside Diameter 50mm, Regulator Type Internal, Voltage 12, New / Reman. New, Position / Degree R 90.

Valeo Alternator 12V 140A. Part number 439791 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 439791, 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: Please confirm compatibility by matching part number 439791, the 12V/140A rating, the 6 groove pulley, quad leg four-point mounting and the connector arrangement against the vehicle and the removed alternator before fitting.

FAQ

What is the part number for this Valeo alternator?

The part number listed is 439791.

What voltage and output does this alternator have?

It is a 12V alternator rated at 140A.

Is this a new or remanufactured unit?

It is listed as new.

What type of regulator does it use?

It has an internal regulator.

What pulley and mounting details are listed?

It has a 6 groove pulley, 50mm pulley outside diameter, quad leg mount and four-point mounting.

Which vehicle groups appear in the fitment data?

The fitment data provided includes Audi, Skoda and Volkswagen applications, including models such as A3, Q3, Kodiaq, Octavia, Superb and Amarok.