The Mahle OE chrome oil-ring assembly fits a 3.4260 in bore and is listed as a CP20 standard-tension oil ring with a 4.0 mm section. Supplied as a chrome ring set, it is intended to manage oil control in compatible engines requiring that oil ring assembly profile. The description emphasizes correct bore and ring section to assist accurate matching during engine rebuilds.
Mahle Rings 3.4260in Bore CP20 Std Tension 4.0MM Oil Ring Assembly Chrome Ring Set