This Mahle OE chrome top-ring set is specified for a 3.3858 in bore and uses chrome steel top rings with a 1.2 mm section and standard gap. Intended as a direct top-ring replacement in rebuilds, the set highlights precise bore and ring section to ensure proper sealing in engines that call for a chrome-faced top ring of that size. The wording aids matching during repairs.
Mahle Rings 3.3858 X 1.2MM Chrome Steel Std Gap Top Ring Chrome Ring Set