This product has been discontinued by the manufacturer and has been superseded by Sierra 18-8811-1CDI 631-0023 Spark Plug Wires The CDI 631-0023 is a 5 pack of Spark Plug Wires designed for Mercruiser, OMC, and Marine Power engines. (4 Cyl) Mercruiser 3.0 LX (1991-97) Fits: Marine Power; 1993-2017 3.0L; Mercruiser; 1991-1994 3.0L (181c.i.); 1998-2010 3.0L (181c.i.); 1990-1994 3.0L GM; 2012-2017 3.0L MPI; 1996-2017 3.0L/LX; 2001-2010 3.0LMPI (181c.i.); 1991-1997 3.0LX (181c.i.); 1990-1995 3.0LX GM; 1996-1997 3.0LX GM; OMC; 1990-1998 3.0L; Replaces: 18-8811-1; 18-8833-1; 84-816761Q14; 9-28056; 631-0023;