Valeo Alternator 12V 120A 439307

This Valeo alternator is a 12V, 120A unit, supplied new and identified by part number 439307. It is listed as a Valeo unit with internal regulator, a 6 groove pulley, and a single leg alternator mount, so it is best matched by the exact unit details rather than by appearance alone.

The mounting details are specific: mount leg thickness is 56mm, mount centre to centre is 156mm, pivot hole diameter is 10mm, and adjusting hole diameter is 10mm. The fastening type is a single pivoted lever, and the unit is noted with position / degree R 60.

This alternator is part of the rotating electrical range and carries a 1 year warranty. It weighs 6.53kg, has a pulley outside diameter of 50mm, and is described as having no connector for revolution counter. These details matter when checking physical swap, wiring, and pulley alignment before purchase.

Key Features

• 12V alternator with 120A charge current
• New Valeo unit, part number 439307
• Internal regulator type
• 6 groove pulley
• Single leg alternator mount
• Single pivoted lever fastening

Specifications

• Brand: Valeo
• Product type: Alternator
• Voltage: 12V
• Alternator charge current: 120A
• Power rating: 120A
• Part No.: 439307
• New / remanufactured: New
• Warranty: One year

Fitment guidance

• Listed for Mercedes-Benz applications, including E-Class, Valente, Viano, and Vito / Mixto
• Fitment data includes Mercedes-Benz E-Class model years from 1996 through 2006 in the provided application preview

Application and Buying Notes

Before ordering, compare the part number 439307 and the physical details against the alternator currently in the vehicle. The key checks here are 12V system voltage, 120A output, 6 groove pulley, internal regulator, and the single leg mounting arrangement with 56mm mount leg thickness and 156mm mount centre to centre.

The pulley outside diameter is 50mm and the fastening type is a single pivoted lever, so alignment and bracket style should be checked carefully. The unit is also listed with a 10mm pivot hole and 10mm adjusting hole, which should be matched to the vehicle’s mounting hardware.

Because the fitment data covers Mercedes-Benz E-Class, Valente, Viano, and Vito / Mixto applications, the safest approach is to confirm the exact vehicle application against the part number rather than relying on the brand name alone. The description notes no connector for revolution counter, so wiring and connector arrangement should also be verified before fitting.

If replacing an existing alternator, compare the old unit’s shape, mounting points, pulley section, and electrical connection arrangement before purchase. This reduces the chance of ordering a correct-looking unit that differs in mount style, pulley layout, or regulator arrangement.

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 439307 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, Mount Leg Thickness 56mm, Pivot Hole Diameter 10, Pulley Outside Diameter 50mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 156mm, Alternator Charge Current [A] 120.

Additional published details for cross-checking include Fastening Type Single pivoted lever, Weight 6.53kg, Product Group 1 ROTATING ELECTRICAL, Part No. 439307, Brand VALEO, Description Valeo Alternator 12V 120A, Adjusting Hole Diameter 10, Pin Code IR205, Power Rating (Amp) 120, Pulley Section 6 Groove.

Valeo Alternator 12V 120A. Part number 439307 should be checked first. Listed voltage is 12. Listed output rating is 120. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single 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 439307, 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 120 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm compatibility by matching part number 439307, 12V system voltage, 120A output, single leg mount details, and the listed Mercedes-Benz application data before purchase.

FAQ

What is the part number for this alternator?

The part number is 439307. For this listing, part number 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. 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 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. 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 120A charge current and 120A power rating. For this listing, part number 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. These details should still be checked against the original unit before ordering.

What type of regulator does it use?

It has an internal regulator. For this listing, part number 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. These details should still be checked against the original unit before ordering.

What mounting and pulley details are listed?

The alternator has a single leg mount, single pivoted lever fastening, 56mm mount leg thickness, 156mm mount centre to centre, 10mm pivot hole diameter, 10mm adjusting hole diameter, a 50mm pulley outside diameter, and a 6 groove pulley section. For this listing, part number 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment information?

The provided fitment data lists Mercedes-Benz applications, including E-Class, Valente, Viano, and Vito / Mixto, with E-Class model years shown in the preview from 1996 through 2006. For this listing, part number 439307 is the main reference point. Listed voltage is 12. Listed output rating is 120. Published fitment references include MERCEDES-BENZ E-CLASS, MERCEDES-BENZ E-CLASS 1996, MERCEDES-BENZ E-CLASS 1997. These details should still be checked against the original unit before ordering.