Steel ring set, for 4 ring pistons. 3 compression rings @ 0.625" oil rings 0.125 as per original 998 pre-A plus and 1098cc versions inc Morris minor and sprite range.
998cc flat top 3 ring circlip type piston set as fitted to early A plus to replace 4 ring set type. Gave 10.3 to1 CR and is a good alternative to use on any 998 with circlip type pistons. Replaced 4 ring (3 ring and scraper) P20754 from Hepolite 1980on. Sold as an engine set of 4 pistons and rings