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The Mahle OE moly piston ring set fits GMC passenger 138 2.3L Quad 4 engines made from 1987 to 1995. MAHLE emphasizes OE-driven piston ring technology to reduce friction and ring mass while minimizing oil consumption for longer service life. This moly ring set follows those principles to restore sealing and efficiency in specified Quad 4 engine rebuilds.
Mahle Rings GMC Pass 138 2.3L Quad 4 Eng 87-95 Moly Ring Set
