1996-2005 Chevrolet Astro with Fuel Return Line 1996-2005 Chevrolet Blazer with Fuel Return Line 1996-1998 Chevrolet C1500 Truck V6 4.3L with Fuel Return Line 1996-2014 Chevrolet Express 1500 Van V6 4.3L with Fuel Return Line 1996-2005 Chevrolet Express 2500 Van V6 4.3L with Fuel Return Line 1996-1998 Chevrolet K1500 Truck V6 4.3L with Fuel Return Line 1996-1999 Chevrolet P30 V6 4.3L with Fuel Return Line 1996-2003 Chevrolet S10 Pickup V6 4.
