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The Mahle drop-in piston ring set is sized for a 4.390 in bore and includes ring widths of 1/16 in, 1/16 in, and 3/16 in for the top, second, and oil rings. This ready-to-install kit suits routine rebuilds and repairs where accurate ring sizing and easy installation are required. The set provides straightforward sealing and oil control to help restore compression and proper engine operation after maintenance.
Mahle MS 4.390in1/16in 1/16in 3/16in Drop In Rings
