This product has been discontinued by the manufacturer and has been superseded by Sierra 18-5395CDI E64-0010 Distirbutor Cap The CDI E64-0010 is a distributor cap designed for use with Mercruiser Engines.GM (V8) engines with Thunderbolt IV & V HEI Ignition Fits: Mercruiser 1983-1984 198, 898, 5.0L GM (305cid) 1985-1995 200 (5.0L)(305c.i.) 1985-1995 200, 5.0L GM (305cid) 1987-1995 200, 5.0L GM (305cid) 1982-1984 228 (305c.i.) 1985-1986 228 (305c.i.) 1982-1984 228 4 BBL. GM 1982-1984 1985-1987 230 (305c.i.) 1988-1995 230 MIE 4 BBL GM 305 1981-1995 230, 5.0L/LX MIE (305c.i.) 1981-1987 230MIE (305c.i.) 1981-1986 260 MIE GM 1987-1995 260, 350MAG 5.7L SKI/ALPHA/BRAVO (350cid) 1982-1994 260, 350MAG 1985-1986 300 (350c.i.) 1985-1989 300, 320EFI (350c.i.) 1987-1989 320EFI (350c.i.) 1982-1987 330 1982-1987 330 GM 454 1981-1992 330, 340, 7.4L MCM & MIE (454cid) 1981-1987 340MIE 1986-1987 350 MAG ALPHA GM 1999-2001 350 MAG HORIZON MIE 1999-2001 350 MAG MPI HORIZON MIE (350c.i.) 1998-2017 350 MAG MPI SKI (GEN+) GM 350 1991-1996 350 MAG SKI GM 1999-2001 350MAG MPI (Gen+)(350c.i.) 1998-2001 350MAG MPI (Gen+) & MIE(Gen+) 1998-2001 350MAG MPI MIE (GEN+) (350c.i.) 1999-2001 350MAG MPI SKI (GEN+)(350c.i.) 1999-2001 350MAG MPI SKI(Gen+) 1991-1996 350MAG SKI 1991-1997 350MAGSKI 1994-2001 350MAG, 5.7L/LX ALPHA 1986-1997 530MAGALPHA (350c.i.) 1991-1997 350MAGSKI (350c.i.) 1985-1987 370 TRS 1990-1993 425 1995-1996 450 1986-1997 454MAGALPHA 1988-1997 454MAGBRAVO 1992-1994 465 1998-2010 5.0L (GEN+)(305c.i.) 1998-2001 5.0L Alpha & Bravo(Gen+) 1999-2001 5.0L EFI (Gen+) 1988 5.0LMIE (305c.i.) 1988-1995 5.0LX (305c.i.) 1988-2010 5.7L (350c.i.) 1999-2001 5.7L EFI & (Gen+) 1998-2017 5.7L MIE & SKI 1987-1995 5.7L SKI 1987-1997 5.7L SKI 1998-2001 5.7L SKI 1987-2010 5.7L SKI (350c.i.) 1999 5.7LEFI(GEN+)(350c.i.) 1988-2010 5.7LMIE (350c.i.) 1995-1997 5.7LX (350c.i.) 1994-1999 500 1999 500(Gen+) 1990-2001 500BULLDOG 1990-1993 502MAG 1991-1995 525SC 1991-1999 525SC 1996-1999 525 S 1986-1992 575 1991-1993 600 SC 1991-2000 600 SC 1993-2001 600 SC 1988-1997 7.4L BRAVO 1988-1997 7.4LMIE 1990-1996 8.2L GM MPI MIE 1990-1996 8.2LMIE 1993-1998 800 SC 1983-1984 898 (305c.i.) 2003-2007 BLACK SCORPION SKI (GEN+) (350c.i.) 2003-2007 MX 6.2L BLACK SCORPION SKI (377c.i.) 2000-2001 MX 6.2L MPI (377c.i.) 2000-2001 MX 6.2L MPI MIE (377c.i.) 2008-2010 SCORPION 377 (377c.i.) 2008-2010 SCORPION 350 (350c.i.) Replaces: 16457A4 18-5395 43557 43557A1 71510 805759A1 805759A2 805759A5 805759T1 805759T2 90746A1 9-29403