Valeo Alternator 12V 180A New 6 Groove CW 439823

The Valeo alternator listed here is a new 12V unit rated at 180A, with part number 439823 and pin code IR201. It is a rotating electrical component supplied as each, with an internal regulator and a 6 groove pulley arrangement for applications that call for this specification.

This alternator is built with clockwise rotation, a quad leg alternator mount, and four-point mounting. The pulley outside diameter is 51mm, and the unit weighs 7.48kg. For buyers comparing units, those details matter just as much as the 180A output and 12V system voltage.

Valeo is identified as a leading OE manufacturer and supplier for many euro vehicles, which is useful context when matching replacement parts by specification and application. The listed unit is new rather than remanufactured, and the connector is described as no connector for revolution counter.

Key Features

• New 12V alternator
• 180A charge current
• 6 groove pulley
• Clockwise rotation
• Internal regulator
• Quad leg mount

Specifications

• Brand: Valeo
• Part No.: 439823
• Pin Code: IR201
• Voltage: 12V
• Power Rating: 180A
• Alternator Charge Current: 180A
• Pulley Section: 6 groove
• Pulley Outside Diameter: 51mm

Verified fitment guidance

• Supported application data includes Mercedes-Benz vehicles.
• Fitment references include Mercedes-Benz C-Class, CLS, E-Class, GL-Class, GLE, GLS, M-Class, S-Class, SL and SLK.
• Sample application data includes Mercedes-Benz C-Class for 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014.
• Use the part number 439823 and the physical specifications above to confirm the correct replacement before ordering.

Application and Buying Notes

When replacing an alternator, the key checks are voltage, output, pulley type, rotation and mounting style. This Valeo unit is 12V with a 180A rating, a 6 groove pulley, clockwise rotation and four-point mounting, so it suits applications that match those exact details rather than any 12V alternator replacement.

The part number 439823 and pin code IR201 are important identifiers for comparison against the old unit, workshop catalogue or vehicle application record. The alternator is a new Valeo unit with an internal regulator and no connector for revolution counter, so the plug arrangement and charging system requirements should be checked carefully before purchase.

Physical dimensions and mounting layout can make an otherwise similar alternator unsuitable. Here the pulley outside diameter is 51mm, the mount is listed as quad leg, and the unit weighs 7.48kg. Those details help confirm the replacement against the existing alternator, especially where visual similarity does not guarantee the same fit.

If you are replacing an alternator on a Mercedes-Benz application, do not rely on model name alone. The supported applications are listed across several Mercedes-Benz lines, including C-Class, CLS, E-Class and others, but the exact match still needs to be confirmed against the vehicle’s original alternator specification and part number.

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 439823 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) 180, Pulley Section 6 Groove, Rotation CW, Voltage 12, New / Reman. New, Position / Degree L 55, Connector / Clamp No Connector for Revolution Counter.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. 439823, Brand VALEO, Description Valeo Alternator 12V 180A, Pin Code IR201, Pulley Outside Diameter 51mm, Regulator Type Internal, Suits Unit Make Valeo, Alternator Mount Quad Leg.

Valeo Alternator 12V 180A. Part number 439823 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 439823, 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 180 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Please confirm fitment using part number 439823, pin code IR201, the 12V 180A specification, 6 groove pulley, clockwise rotation and the mounting details before ordering.

FAQ

Is this alternator new or remanufactured?

This Valeo alternator is listed as new. For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. 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 180A power rating and 180A charge current. For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. These details should still be checked against the original unit before ordering.

What pulley setup does it use?

The pulley section is listed as 6 groove, and the pulley outside diameter is 51mm. For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. These details should still be checked against the original unit before ordering.

Which way does it rotate?

The alternator rotation is clockwise (CW). For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. These details should still be checked against the original unit before ordering.

What mounting arrangement does it have?

It is listed with a quad leg alternator mount and four-point mounting. For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. These details should still be checked against the original unit before ordering.

Which vehicle applications are shown?

Supported applications include Mercedes-Benz vehicles, with references across C-Class, CLS, E-Class, GL-Class, GLE, GLS, M-Class, S-Class, SL and SLK. Sample application data includes Mercedes-Benz C-Class for 2007 to 2014. For this listing, part number 439823 is the main reference point. Listed voltage is 12. Listed output rating is 180. Published fitment references include MERCEDES-BENZ C-CLASS, MERCEDES-BENZ C-CLASS 2007, MERCEDES-BENZ C-CLASS 2008. These details should still be checked against the original unit before ordering.