Billet Aluminum GN1 Belt Tensioner This is a "Billet Aluminum GN1 Belt Tensioner and pulley" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Great replacement for a broken original cast aluminum... MSRP: Was: Now: $349.00 Add to Cart
