Mahle OE plain ring set identified as a Performance Steel Napier second ring, sized 3.1988 in bore x 1.2 mm thickness (.135 in RW), supplied as a plain ring set for engine rebuild or ring replacement work. The set presents the specific measured dimensions useful for matching pistons and bores during engine service or repair, provided in OE-quality Mahle format.
Mahle Rings Performance Steel Napier 2nd Ring 3.1988in x 1.2MM .135in RW Plain Ring Set