Crankshaft belt pulley, center bolt, and timing case cover identification with camshaft adjuster and sprocket locations on Smart engine.

Engine component identification showing crankshaft pulley, center bolt, timing case cover, camshaft adjuster, and sprocket.

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See all Powertrain figures for the Fortwo (450), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.