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The Mahle OE moly piston ring set fits GMC passenger 138 2.3L Quad 4 engines from 1987 through 1995. MAHLE piston rings use OE-focused design to reduce friction and ring mass while minimizing oil consumption, aiming to extend service life. This moly ring set applies those technical priorities to restore sealing and efficiency in Quad 4 rebuilds.
Mahle Rings GMC Pass 138 2.3L Quad 4 Eng 87-95 Moly Ring Set
