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The Mahle OE plain piston ring set is specified for GMC passenger 173 2.8L engines (1985–1989) and GMC trucks with the 173 2.8L engine (1985–1993). MAHLE piston rings focus on OE-level technology to reduce friction and ring mass while minimizing oil consumption for longer service life. This plain ring set follows OE-driven design priorities for engine sealing and durability.
Mahle Rings GMC Pass 173 2.8L Eng 85-89 GMC Trks 173 2.8L Eng 85-93 Plain Ring Set
