Mahle MS sport compact ring set for six‑cylinder engines is listed at 81.50 mm with ring thicknesses 1.0 mm, 1.2 mm and a 2.8 mm oil ring, provided as a drop‑in replacement. The set is offered for rebuilds where that bore size and the specified ring dimensions are required, supplying direct‑fit rings intended to meet standard assembly clearances and service needs.
Mahle MS Sport Compact Ring 81.50mm 1.0 - 1.2 - 2.8mm Drop In (6cyl) Rings