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The Mahle OE chrome ring set for Ford 3.9L (2000–2004) is a direct-fit piston ring replacement, formerly sold as Mahle 01521N020. MAHLE piston rings are developed to meet OE standards, aiming to reduce friction and ring mass to minimize engine oil consumption and extend service intervals. These chrome rings reflect MAHLE's approach to piston ring technology for OE-level performance.
Mahle Rings Ford 3.9L 2000 - 2004 Was Mahle 01521N020 Chrome Ring Set
