All parts › BMW M4 CSL › S58 engine › Belt drive › Crank pulley
Crank pulley
Part of Belt drive · about $290 to replace
What it is
Harmonic damper on the crank nose.
What it does
Drives the belt and damps torsional vibration.
How it fails
Rubber ring separates with age; the outer ring wobbles.
| Material | Steel with bonded rubber ring |
|---|---|
| Spec | 160 mm |
| 8 kg |