Valeo 439704 Alternator
Valeo 439704 Alternator for Mercedes-Benz GLK250
The Valeo 439704 is a 12-volt, 180-amp alternator built for dependable charging performance in the 2013-2015 Mercedes-Benz GLK250. As part of the Valeo OE family, this unit uses an internal fan, clockwise rotation, and a 6-groove pulley to match the vehicle’s original electrical and belt-drive requirements.
Valeo has supplied original equipment electrical components since 1923, and this alternator reflects that OE-focused engineering. The Valeo 439704 is a 100% new unit, which helps reduce the risk associated with remanufactured components and supports consistent charging output for daily driving.
Key Features
- 12-volt alternator with 180-amp output
- Internal fan design for integrated cooling
- Clockwise rotation direction
- 6-groove pulley configuration
- Aluminium housing construction
- Valeo OE family replacement for original-equipment fit and function
- Technical number: FGN18S047
Detailed Description
This Valeo alternator 439704 is engineered for the Mercedes-Benz GLK250 and matches the vehicle’s OE charging system requirements. It is designed for 2013-2015 Mercedes-Benz GLK250 models and provides the electrical output needed to support the battery, vehicle electronics, lighting, and charging system under normal operating conditions. If you are replacing a worn or failing alternator on a Mercedes-Benz GLK250, this Valeo unit offers a direct OE-style solution with the correct voltage, amperage rating, pulley layout, and rotation direction.
Valeo’s alternator line is built around original equipment standards, and this premium alternator is supplied as a new component rather than a remanufactured unit. This helps maintain consistent performance in applications where charging stability matters. Part number 439704 is also identified by technical number FGN18S047 and cross-references BBB Industries 11738 for the same application.
What It Helps Fix
- Battery warning light caused by alternator output loss
- Low charging voltage in the Mercedes-Benz GLK250
- Dim lights or electrical instability during driving
- Battery drain from an alternator that is not maintaining charge
- Noise or belt-drive issues related to a failing alternator pulley setup
Installation Notes and Tips
Verify the vehicle’s original alternator specifications before installation, including 12-volt system voltage, 180-amp rating, clockwise rotation, and 6-groove pulley alignment. Confirm fitment for 2013-2015 Mercedes-Benz GLK250 models and compare the existing unit to part number 439704 or technical number FGN18S047 before replacement. Proper belt condition, connector condition, and battery health should also be checked during charging-system service.
Quality Assurance
Valeo is a long-standing OE supplier in electrical systems, and this alternator is built as a new replacement unit for consistent charging performance. The Valeo 439704 is designed to meet the original application requirements for the Mercedes-Benz GLK250.
Valeo 439704 Alternator
Valeo 439704 Alternator for Mercedes-Benz GLK250
The Valeo 439704 is a 12-volt, 180-amp alternator built for dependable charging performance in the 2013-2015 Mercedes-Benz GLK250. As part of the Valeo OE family, this unit uses an internal fan, clockwise rotation, and a 6-groove pulley to match the vehicle’s original electrical and belt-drive requirements.
Valeo has supplied original equipment electrical components since 1923, and this alternator reflects that OE-focused engineering. The Valeo 439704 is a 100% new unit, which helps reduce the risk associated with remanufactured components and supports consistent charging output for daily driving.
Key Features
- 12-volt alternator with 180-amp output
- Internal fan design for integrated cooling
- Clockwise rotation direction
- 6-groove pulley configuration
- Aluminium housing construction
- Valeo OE family replacement for original-equipment fit and function
- Technical number: FGN18S047
Detailed Description
This Valeo alternator 439704 is engineered for the Mercedes-Benz GLK250 and matches the vehicle’s OE charging system requirements. It is designed for 2013-2015 Mercedes-Benz GLK250 models and provides the electrical output needed to support the battery, vehicle electronics, lighting, and charging system under normal operating conditions. If you are replacing a worn or failing alternator on a Mercedes-Benz GLK250, this Valeo unit offers a direct OE-style solution with the correct voltage, amperage rating, pulley layout, and rotation direction.
Valeo’s alternator line is built around original equipment standards, and this premium alternator is supplied as a new component rather than a remanufactured unit. This helps maintain consistent performance in applications where charging stability matters. Part number 439704 is also identified by technical number FGN18S047 and cross-references BBB Industries 11738 for the same application.
What It Helps Fix
- Battery warning light caused by alternator output loss
- Low charging voltage in the Mercedes-Benz GLK250
- Dim lights or electrical instability during driving
- Battery drain from an alternator that is not maintaining charge
- Noise or belt-drive issues related to a failing alternator pulley setup
Installation Notes and Tips
Verify the vehicle’s original alternator specifications before installation, including 12-volt system voltage, 180-amp rating, clockwise rotation, and 6-groove pulley alignment. Confirm fitment for 2013-2015 Mercedes-Benz GLK250 models and compare the existing unit to part number 439704 or technical number FGN18S047 before replacement. Proper belt condition, connector condition, and battery health should also be checked during charging-system service.
Quality Assurance
Valeo is a long-standing OE supplier in electrical systems, and this alternator is built as a new replacement unit for consistent charging performance. The Valeo 439704 is designed to meet the original application requirements for the Mercedes-Benz GLK250.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Valeo 439704 Alternator for Mercedes-Benz GLK250
The Valeo 439704 is a 12-volt, 180-amp alternator built for dependable charging performance in the 2013-2015 Mercedes-Benz GLK250. As part of the Valeo OE family, this unit uses an internal fan, clockwise rotation, and a 6-groove pulley to match the vehicle’s original electrical and belt-drive requirements.
Valeo has supplied original equipment electrical components since 1923, and this alternator reflects that OE-focused engineering. The Valeo 439704 is a 100% new unit, which helps reduce the risk associated with remanufactured components and supports consistent charging output for daily driving.
Key Features
- 12-volt alternator with 180-amp output
- Internal fan design for integrated cooling
- Clockwise rotation direction
- 6-groove pulley configuration
- Aluminium housing construction
- Valeo OE family replacement for original-equipment fit and function
- Technical number: FGN18S047
Detailed Description
This Valeo alternator 439704 is engineered for the Mercedes-Benz GLK250 and matches the vehicle’s OE charging system requirements. It is designed for 2013-2015 Mercedes-Benz GLK250 models and provides the electrical output needed to support the battery, vehicle electronics, lighting, and charging system under normal operating conditions. If you are replacing a worn or failing alternator on a Mercedes-Benz GLK250, this Valeo unit offers a direct OE-style solution with the correct voltage, amperage rating, pulley layout, and rotation direction.
Valeo’s alternator line is built around original equipment standards, and this premium alternator is supplied as a new component rather than a remanufactured unit. This helps maintain consistent performance in applications where charging stability matters. Part number 439704 is also identified by technical number FGN18S047 and cross-references BBB Industries 11738 for the same application.
What It Helps Fix
- Battery warning light caused by alternator output loss
- Low charging voltage in the Mercedes-Benz GLK250
- Dim lights or electrical instability during driving
- Battery drain from an alternator that is not maintaining charge
- Noise or belt-drive issues related to a failing alternator pulley setup
Installation Notes and Tips
Verify the vehicle’s original alternator specifications before installation, including 12-volt system voltage, 180-amp rating, clockwise rotation, and 6-groove pulley alignment. Confirm fitment for 2013-2015 Mercedes-Benz GLK250 models and compare the existing unit to part number 439704 or technical number FGN18S047 before replacement. Proper belt condition, connector condition, and battery health should also be checked during charging-system service.
Quality Assurance
Valeo is a long-standing OE supplier in electrical systems, and this alternator is built as a new replacement unit for consistent charging performance. The Valeo 439704 is designed to meet the original application requirements for the Mercedes-Benz GLK250.
