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About Original Parts Group Inc.
OPGI sells and manufactures parts for Chevelle, El Camino, Monte Carlo, GTO, LeMans, Tempest, Grand Prix, Bonneville, Catalina, Cutlass, 442, Skylark, GS, Riviera, and classic Cadillacs. Established in 1982 as an authorized GM parts dealer, you can always count on Original Parts Group to supply high quality parts, with expert advice and best-in-class service.