Piston ring end gap positioning and piston ring types for 451 model 132.9 engine assembly.

Diagram showing piston ring end gap positions A-D and cross-section of compression, taper, and oil scraper rings.

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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.