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The Mahle OE plain second-ring set is a performance Napier steel 2nd ring in the specified 4.070in x 1.0mm size with .136in radial width, offered as a single plain ring set for replacement or rebuild projects. This part targets engine shops and technicians needing a standardized performance second ring for applications matching the 4.070in specification; it’s a straightforward OE-style replacement component for compatibility with the stated dimensions.
Mahle Rings Performance Napier Steel 2nd Ring 4.070in x 1.0MM .136in RW Plain Ring Set
