Valeo Alternator 12V 180A 439845

The Valeo Alternator 12V 180A, part number 439845, is a new alternator supplied as each unit. It is rated at 180 amps and uses a 12-volt electrical system, so it suits applications that call for this exact charging output and voltage.

This unit features an internal regulator, a 6-groove pulley with a 53mm outside diameter, quad leg alternator mount, and four-point mounting. Those details matter when you are comparing replacement alternators, because the pulley, mounting style, and regulator type all need to match the vehicle application.

The alternator is listed for vehicles with start-stop function and is identified as a Valeo unit, with Valeo also noted as the unit make. It is a 9.1kg component, and the one-year warranty provides a clear reference point for buying with confidence when the part number and application are confirmed.

Valeo is described here as a leading OE manufacturer and supplier for many euro vehicles, which is useful context for workshops and owners who want a replacement that aligns with the original electrical and mounting requirements rather than relying on a generic substitute.

Key Features

• New alternator, supplied each
• 12V system with 180A charge current
• Internal regulator
• 6-groove pulley, 53mm outside diameter
• Quad leg mount with four-point mounting
• Suitable for vehicles with start-stop function

Specifications

• Brand: Valeo
• Product type: Alternator
• Part No.: 439845
• Voltage: 12V
• Power rating: 180A
• Alternator charge current: 180A
• Pulley section: 6 groove
• Pulley outside diameter: 53mm

Verified fitment notes

• Citroën applications are listed, including Berlingo, C3, C4, C4 Cactus, DS3 and DS4
• Peugeot applications are listed, including 2008, 3008, 308, 308 SW, 508 and Partner
• Fitment examples shown in the data include Citroën Berlingo 2010 to 2018 and Peugeot 2008 2013 to 2016
• Fitment examples shown in the data include Peugeot 3008 2009 to 2014

Application and Buying Notes

Before ordering, check the part number 439845 against the existing alternator and compare the mounting arrangement. This unit uses a quad leg alternator mount and four-point mounting, so the physical fixing points need to line up with the vehicle setup as well as the electrical rating.

The pulley specification is also important. This alternator has a 6-groove pulley with a 53mm outside diameter, so belt type and pulley size should be matched carefully to avoid installation issues. A mismatch here can stop the alternator from lining up correctly with the drive belt system.

The 12V, 180A rating is the key electrical specification. It is intended for vehicles where that charging output is required, including applications listed with start-stop function. If the replacement vehicle uses a different output, regulator style, or pulley arrangement, the part should be checked again before purchase.

Because the fitment list includes multiple Citroën and Peugeot applications, it is sensible to verify the exact model, build year, and engine-related electrical setup before fitting. The same badge or model name can use different alternators depending on mounting and charging configuration.

This alternator is new, weighs 9.1kg, and carries a one-year warranty. Those details are useful when comparing to a removed unit, but they do not replace a proper parts match. Confirm the application, then compare the part number, pulley, regulator type, and mounting style together.

If you are fitting for a workshop job or a roadside replacement, keep the old alternator until the new one has been checked against the vehicle. Matching the electrical output and the mounting pattern is the safest way to avoid avoidable downtime and repeat labour.

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 439845 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 53mm, Regulator Type Internal, Voltage 12, New / Reman. New, Position / Degree L 80, Vehicle Equipment for vehicles with start-stop function.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 439845, Brand VALEO, Description Valeo Alternator 12V 180A, Power Rating (Amp) 180, Pulley Section 6 Groove, Suits Unit Make Valeo, Alternator Mount Quad Leg, Alternator Charge Current [A] 180, Fastening Type Four-point mounting.

Valeo Alternator 12V 180A. Part number 439845 should be checked first. Listed voltage is 12. Listed output rating is 180. 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 439845, 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.

Compatibility note: Confirm compatibility by matching part number 439845, 12V 180A output, 6-groove 53mm pulley, internal regulator, quad leg mount, and four-point mounting against the vehicle application before ordering or fitting.

FAQ

What is the part number for this Valeo alternator?

The part number listed is 439845.

What electrical rating does it have?

It is a 12V alternator with a 180A charge current rating.

Is this alternator new or remanufactured?

It is listed as new.

What pulley details are provided?

It has a 6-groove pulley with a 53mm outside diameter.

What mounting and regulator details should I check?

It uses an internal regulator, a quad leg alternator mount, and four-point mounting.

Which vehicles are listed in the fitment data?

The fitment data lists Citroën and Peugeot applications, including Berlingo, C3, C4, C4 Cactus, DS3, DS4, 2008, 3008, 308, 308 SW, 508 and Partner.