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MAHLE piston rings combine OE-driven engineering with advanced materials and coatings to reduce friction, lower ring mass, and minimize engine oil consumption for longer service life. These moly ring sets are specified for select GMC passenger and truck applications with 2.8L (1987–1989) and 3.1L (1988–1993) engines, offering OE-level technology for reliable restoration or rebuild projects.
Mahle Rings GMC Pass 173 2.8L Eng 87-89 189 3.1L Eng 88-93 GMC Trk 189 3.1L Moly Ring Set
