Alternator-Bluetec 4Matic Valeo 439770
VALEO 439704 alternator for the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L charges the battery and supplies power to the electrical system while the engine runs. The VALEO alternator is an application-specific unit, sold new.
A battery warning light, dim headlights or a battery that keeps going flat can mean the alternator is wearing out. A tired battery produces some of the same symptoms, so have the charging system tested before you replace the alternator.
This alternator is a direct-fit replacement for the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L, and the engine takes a single alternator.
Fit and size
Build and materials
Interchange: 11738 · 10334 · 0141543902 · 014154390280 · 014154390287 · 14154390287
This part cross-references / interchanges with the following part numbers:
Does the VALEO 439704 alternator fit the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L?
Yes. VALEO 439704 is made for the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L, and the engine takes one alternator.
What is the pulley diameter on the VALEO 439704?
The pulley on VALEO 439704 measures 51 mm in diameter, and the alternator has an aluminium housing.
What are the magnets in this alternator for?
This alternator uses rare earth magnets to raise output without making the unit larger.
Could a battery warning light mean this alternator is failing?
It can, since the alternator charges the battery while the engine runs. Dim lights or a flat battery are other possible signs, and a shop can test the charging output.
How is this alternator tested?
Each application goes through extreme condition testing for heat, vibration and electrical load. The unit also resists heat, vibration and contaminating particles.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.