This product has been discontinued by the manufacturer and has been superseded by Sierra 18-8828-1CDI 631-0011 Spark Plug Wire Set 6 Cyl) Conventional Ignition with Delco Breaker Point Distributor Mercury Marine 470, 485, 488, 3.7L Aluminum Block Engines Fits: Mercruiser; 2001-2017 350 MAG MPI ALPHA/BRAVO; 2001-2017 350 MAG MPI ALPHA/BRAVO EC; 2001-2017 350 MAG MPI HORIZON ALPHA/BRAVO; 2001-2017 350 MAG MPI HORIZON ALPHA/BRAVO EC; 2002-2007 350MAGMPI 350c.i.; 2002-2007 350 MAGMPIMIE 350c.i.; 2002-2007 350MAGMPISKI 350c.i.; 2001-2017 5.0L MCM/MIE MPI; 2001-2017 5.0L MPI ALPHA/BRAVO; 2001-2017 5.0 MPI ALPHA/BRAVO EC; 2002-2010 5.0L MPI 305c.i.; 1988-2010 5.7L 350c.i.; 1995-1997 5.7LEFI 350c.i.; 2002-2007 MX 6.2L MPI (377CID)(377c.i.); 2001-2004 MX 6.2L MPI (377c.i.); 2001-2017 MX 6.2L MPI HORIZON BRAVO; 2002-2007 MX 6.2L MPI HORIZON MIE (377c.i.); 2002-2010 MX 6.2L MPI MIE (377c.i.); 2002-2007 MX 6.2L MPI SKI (377c.i.); 2002-2007 MX 6.2L MPIHORIZON (377c.i.); Replaces: 18-8808-2; 631-0015; 84-816761K6; 84-816761Q6; 9-28014;