Valeo Alternator 12V 140A Part No. 439507

This Valeo alternator is a 12V, 140A unit identified by Part No. 439507 and listed as a new rotating electrical component. It suits Valeo applications and uses an internal regulator, with a 6 groove pulley and a pulley outside diameter of 50mm.

Mounting details matter on alternators, and this unit is specified with twin leg mounting, 75mm inside mounting legs, 127mm centre to centre mounting, and 10mm pivot and adjusting hole diameters. The fastening type is double pivot lever, so the physical configuration needs to match the vehicle and bracket arrangement before purchase.

The listed application includes BMW 330ci E46 with the M54B30 engine. A separate fitment preview also shows BMW X5 applications across model years, but the only directly stated vehicle application provided here is the BMW 330ci E46 M54B30 reference, so that is the safest point to work from when checking suitability.

Key Features

• 12V alternator with 140A charge current
• Valeo brand, Part No. 439507
• New unit
• Internal regulator
• 6 groove pulley
• Twin leg mounting

Specifications

• Type: Alternator
• Voltage: 12V
• Alternator charge current: 140A
• Power rating: 140A
• Pulley outside diameter: 50mm
• Pulley section: 6 groove
• Inside mounting legs: 75mm
• Mount centre to centre: 127mm

Fitment guidance

• BMW 330ci E46 with M54B30 engine is specifically listed as a suitable application.
• BMW X5 is shown in the fitment preview, including model years 2000 to 2006, but no engine code or full application details are provided here.
• Confirm the mounting style, pulley layout, connector arrangement, and part number before ordering.

Application and Buying Notes

Alternators can look similar across different BMW applications, but the key checks here are the 12V system, 140A output, 6 groove pulley, and the twin leg mounting pattern with 75mm inside mounting legs. Those details need to line up with the existing unit and the vehicle bracket arrangement, especially where the physical mount and pulley offset are critical.

The internal regulator is another important point to confirm. If the vehicle is set up for a different regulator arrangement or connector style, the part may not suit even if the body looks close. This unit is also listed with no connector for revolution counter, so the wiring and plug style should be checked against the original alternator before fitting.

Part No. 439507 is the most reliable reference to use when comparing alternatives. Where a vehicle is already apart, it is worth matching the old alternator against the 127mm mount centre to centre measurement, the 10mm pivot and adjusting holes, and the 50mm pulley outside diameter. These are practical checks that help avoid ordering the wrong unit.

The listed warranty is one year. As with any electrical component, installation quality, belt condition, battery health, and charging system condition all affect how the alternator performs in service. It is sensible to inspect the belt drive and related charging circuit components before and after installation so the replacement can be assessed properly.

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 439507 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 75mm, Pivot Hole Diameter 10, Pulley Outside Diameter 50mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 127mm, Alternator Charge Current [A] 140.

Additional published details for cross-checking include Fastening Type Double Pivot Lever, Weight 7.032kg, Product Group 1 ROTATING ELECTRICAL, Part No. 439507, Brand VALEO, Description Valeo Alternator 12V 140A, Adjusting Hole Diameter 10, Pin Code IR122, Power Rating (Amp) 140, Pulley Section 6 Groove.

Valeo Alternator 12V 140A. Part number 439507 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 Twin 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 439507, 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 BMW X5, BMW X5 2000, BMW X5 2001, BMW X5 2002. 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.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm fitment by checking Part No. 439507, the 12V 140A specification, twin leg mounting, 6 groove pulley, and the application details for your vehicle before ordering.

FAQ

What is the part number for this alternator?

The listed part number is 439507.

What voltage and output does it have?

It is a 12V alternator with a 140A charge current and a 140A power rating.

What vehicle application is directly stated?

The specifically stated application is BMW 330ci E46 with the M54B30 engine.

What mounting details are listed?

It has twin leg mounting, 75mm inside mounting legs, 127mm mount centre to centre, and 10mm pivot and adjusting hole diameters.

Does it have an internal regulator?

Yes, the regulator type is listed as internal.

What pulley setup does it use?

It uses a 6 groove pulley with a 50mm outside diameter.