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The Mahle OE moly piston ring set is specified for GMC passenger 2.0L engines (1987–1989) and GMC passenger 2.2L engines (1990–1993). Grounded in Mahle’s OE requirements, these moly rings aim to reduce friction and ring mass while minimizing engine oil consumption to promote longer service life. They’re a straightforward, source-specified choice for engine rebuilds where OE-level sealing is needed.
Mahle Rings GMC Pass 121 2.0L Eng 87-89 GMC Pass 134 2.2L Eng 90-93 Moly Ring Set
