Valeo Alternator 12V 140A 439724

Valeo alternator, 12V and 140A output, part number 439724. It is a new unit, sold each, with a one year warranty. The alternator uses a 6 groove pulley, clockwise rotation, and an internal regulator.

This unit is listed with four-point mounting, quad leg alternator mount, 127mm mount centre to centre, and 60mm inside mounting legs. The adjusting hole diameter is M8x1.25 / 8.5, and the pulley outside diameter is 56mm.

It is described as a Valeo unit for rotating electrical applications and is noted as a leading OE manufacturer and supplier for many euro vehicles. Fitment support is provided for selected Audi, Skoda and Volkswagen applications, so matching the part number and mounting details remains essential.

The alternator weighs 7.7kg and includes no connector for revolution counter. If you are replacing an existing charging unit, the 12V system voltage, 140A charge current, pulley layout, and mounting configuration are the main checks before ordering.

Key Features

• 12V alternator with 140A charge current
• New unit, sold individually
• Valeo brand, part number 439724
• 6 groove pulley with clockwise rotation
• Internal regulator fitted
• Four-point mounting with quad leg mount

Specifications

• Type: Alternator
• Voltage: 12V
• Power rating: 140A
• Alternator charge current: 140A
• Pulley section: 6 groove
• Rotation: CW
• Regulator type: Internal
• Mounting type: Four-point mounting

Known fitment applications

• Audi A1
• Audi A3
• Audi A4
• Audi Q3
• Audi TT
• Skoda Octavia
• Skoda Roomster
• Skoda Superb

Application and Buying Notes

Check the part number 439724 against the old alternator before buying, then compare the 12V system, 140A output, 6 groove pulley, and clockwise rotation. Those details are the quickest way to avoid a mismatch when replacing a charging unit.

Mounting is also critical on this Valeo alternator. The unit is listed with four-point mounting, quad leg mount, 127mm mount centre to centre, 60mm inside mounting legs, and an M8x1.25 / 8.5 adjusting hole diameter, so those dimensions should be confirmed against the original unit and vehicle arrangement.

The alternator is a new Valeo unit with an internal regulator and no connector for revolution counter. If your vehicle uses a different connector arrangement or mounting style, the unit may not suit even where the vehicle make appears in the fitment group.

Vehicle coverage is listed across selected Audi, Skoda and Volkswagen models, including A1, A3, A4, Q3, TT, Octavia, Roomster, Superb, Yeti, Caddy, Eos, Golf, Jetta, Passat, Passat Alltrack, Polo and Tiguan. Model year and engine application can still vary, so the safest comparison is always the physical alternator and part number.

Weight is 7.7kg, which can be useful when handling, packing, or checking against an existing unit removed from the vehicle. If the replacement alternator differs in pulley section, mounting face, or regulator type, stop and verify before installation.

As with any charging system part, confirm the vehicle battery and belt condition as well. A correct alternator cannot compensate for a worn belt, poor wiring, or corrosion at the mounting and charge connections.

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 439724 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 60mm, Power Rating (Amp) 140, Pulley Section 6 Groove, Rotation CW, Voltage 12, Mount Cnt to Cnt 127mm, Alternator Charge Current [A] 140.

Additional published details for cross-checking include Fastening Type Four-point mounting, Weight 7.7kg, Product Group 1 ROTATING ELECTRICAL, Part No. 439724, Brand VALEO, Description Valeo Alternator 12V 140A, Adjusting Hole Diameter M8x1.25 / 8.5, Pin Code IR229, Pulley Outside Diameter 56mm, Regulator Type Internal.

Valeo Alternator 12V 140A. Part number 439724 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 439724, 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 A1, AUDI A1 2011, AUDI A1 2012, AUDI A1 2013, SKODA OCTAVIA, SKODA OCTAVIA 2009. 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 fitment by matching part number 439724, the 12V 140A specification, and the listed mounting and pulley details against the vehicle and removed unit before purchase.

FAQ

Is this alternator new or remanufactured?

It is listed as a new alternator.

What is the output rating?

The alternator is rated at 140A and 12V.

What pulley does it use?

It uses a 6 groove pulley, with a 56mm pulley outside diameter.

What mounting details are listed?

It is listed with four-point mounting, quad leg alternator mount, 127mm mount centre to centre, and 60mm inside mounting legs.

Does it have an internal regulator?

Yes. The regulator type is listed as internal.

Which vehicles are listed in the fitment group?

Fitment group coverage includes selected Audi, Skoda and Volkswagen applications, including A1, A3, A4, Q3, TT, Octavia, Roomster, Superb, Yeti, Caddy, Eos, Golf, Jetta, Passat, Passat Alltrack, Polo and Tiguan. Exact suitability still depends on part number and mounting details.