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Valeo 439507 Alternator
| Brand | Valeo 439507 |
|---|---|
| 51 | |
| Amperage Rating | 140 |
| Family | Valeo OE |
| Fan Type | Internal |
| Housing Material | Aluminium |
| Pulley Belt Type | Serpentine |
| Pulley Groove Quantity | 6 |
| Regulator Type | Internal |
| Rotation Direction | Clockwise |
| Technical Number | SG14B020 |
| Voltage | 12 |
| Product line | Alternator |
| Fits | BMW · 10 vehicles |
OE-style replacement. 100% new alternator from a global original-equipment supplier.
Aluminium housing. Lightweight construction helps support reliable charging performance.
Internal regulator. Built with an internal fan and regulator for compact integration.
Cross-references BBB Industries 11098, Bosch AL9413X and Remy 12641 for the same application. See all 14.
Valeo 439507 Alternator for BMW Charging Systems
The Valeo 439507 is a 12-volt alternator built for BMW charging system applications that require a 140-amp output, internal regulation, and clockwise rotation. It is a Valeo OE family unit with an aluminum housing and a 6-groove serpentine pulley for direct-fit service on listed BMW models.
Key Features
- 12-volt alternator with 140-amp amperage rating
- Internal fan and internal regulator design
- Clockwise rotation direction
- 6-groove pulley for serpentine belt systems
- Aluminum housing for OE-style fit and durability
- Valeo OE family alternator, part number 439507
- Technical number: SG14B020
OE-Style Charging Performance
Valeo has supplied original equipment electrical components since 1923, and this alternator reflects that OE-focused engineering approach. The 439507 is designed for BMW charging systems that need stable voltage output and consistent electrical performance, and it cross-references Bosch AL9413X for the same application. This part number 439507 is used on 1997 BMW 528i, 1997-2000 BMW Z3, and 2004-2006 BMW X5 applications listed below.
What This Alternator Helps Address
- Battery warning lights caused by weak charging output
- Low-voltage electrical performance under load
- Dim lights or unstable accessory operation
- Charging system failure from a worn or failing alternator
- Driveability issues related to insufficient system voltage
Installation Notes and Tips
Verify pulley groove count, rotation direction, amperage rating, and connector match before installation. This alternator uses an internal regulator and serpentine belt pulley configuration, so confirm the vehicle’s charging system specifications against the original unit. For fitment, use the exact BMW application listed: Fits 1997 BMW 528i, N/A; Fits 1997-2000 BMW Z3, N/A; Fits 2004-2006 BMW X5, N/A.
Quality Assurance
Valeo premium alternators are 100% new, which helps reduce the risk associated with remanufactured units. As an OE supplier in electrical systems, Valeo builds this alternator to meet the requirements of listed BMW applications while supporting dependable charging performance.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | BMW | X5 | 3.0i | 3.0L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 2005 | BMW | X5 | 3.0i | 3.0L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 2004 | BMW | X5 | 3.0i | 3.0L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 2000 | BMW | Z3 | Coupe | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 2000 | BMW | Z3 | Roadster | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 1999 | BMW | Z3 | Coupe | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 1999 | BMW | Z3 | Roadster | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 1998 | BMW | Z3 | Roadster | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 1997 | BMW | 528i | Base | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
| 1997 | BMW | Z3 | Roadster | 2.8L | L6 | N/A | VALEO IS THE OE SUPPLIER FOR THIS VEHICLE; 140 AMP; Alternator |
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