F-557311 Alternator Freewheel Pulley AKA 535 0165 10 for Mercedes-Benz

F‑557311 Alternator Overrunning Pulley
✔️ Fits select Mercedes-Benz models with Valeo alternators

The F‑557311 is an overrunning alternator pulley (also known as a freewheel clutch pulley) designed for multiple Mercedes-Benz models from 2002-2024. It helps reduce belt tension, improve alternator lifespan, and minimize engine vibration at idle. Interchangeable with several OE and aftermarket references.

✅ Fits Valeo alternators on C-Class, E-Class, SLK, CLK, and Sprinter models
✅ Compatible years: 2002-2024
✅ Engine output range: 95-204 hp (70-150 kW)
✅ OEM and equivalent part numbers:
 - INA F‑557311
 - AFP3022
 - 535 0165 10
 - Valeo 588052
 - SKF VKM 03815
✅ Designed for smoother engine idle and reduced alternator wear

💡 What’s the purpose of an overrunning alternator pulley in a car?
It improves belt performance by letting the alternator free-spin when the engine decelerates.

• Minimizes belt tension and bounce during engine speed changes

• Helps prevent alternator clutch failure and noise

• Supports longer belt and alternator life

• Especially useful in engines with frequent RPM fluctuations

If you're replacing your alternator clutch, this pulley is your go-to match - keep your Benz running like it should!