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Housing Thermostat for Mercruiser 5.0 5.7 1 Piece Stainless Steel 861006A1

  • Part #: SIE18-1989

$233.95

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Thermostat Housing for Mercruiser 4.3 and Small Block GM engines. Also fits big block engines with straight across bolts on the intake manifold.

1 Piece Stainless Steel.

Uses Simplified Plumbing.

One hose for Water in from raw water pump.
One hose to Circulating water pump.
One hose to the bottom of each exhaust manifold.

Includes ports for Alarm and Temperature Senders

Replaces: 87290A4, 861006A1

Use 18-1989K Thermostat Service Kit
for replacement parts

Replaces:
861006AMERCURY MARINE
87290A4MERCURY MARINE

WARNING: Cancer and Reproductive Harm-https://www.P65Warnings.ca.gov


SIE18-1989
Brand Model Year HP Serial # Notes
Mercruiser Stern Drive 185 2 BBL. GM 1985
Mercruiser Stern Drive 205 4 BBL. GM 1985
Mercruiser Stern Drive 185 2 BBL. GM 1986
Mercruiser Stern Drive 205 4 BBL. GM 1986
Mercruiser Stern Drive 420 GM 1987
Mercruiser Stern Drive 420 GM 1988
Mercruiser Stern Drive 420 GM 1989
Mercruiser Stern Drive 425 GM 1990
Mercruiser Stern Drive 425 GM 1991
Mercruiser Stern Drive 425 GM 1992
Mercruiser Stern Drive 425 GEN. V GM 1992
Mercruiser Stern Drive 425 GEN. V GM 1993
Mercruiser Stern Drive 350 MAG ALPHA GM 1986
Mercruiser Stern Drive 350 MAG ALPHA GM 1987
Mercruiser Stern Drive 575 GM 1986
Mercruiser Stern Drive 575 GM 1987
Mercruiser Stern Drive 575 GM 1988
Mercruiser Stern Drive 575 GM 1989
Mercruiser Stern Drive 575 GM 1991
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1988 230
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1989 230
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1991 230
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1992 230
Mercruiser Stern Drive 260 GM 1987
Mercruiser Stern Drive 230 4 BBL. GM 1987
Mercruiser Stern Drive 260 4 BBL. GM 1987
Mercruiser Stern Drive 200 2 BBL. GM 1987
Mercruiser Stern Drive 350 MAG ALPHA GM 1987
Mercruiser Stern Drive 350 MAG ALPHA GM 1988
Mercruiser Stern Drive 5.7L GM 1988
Mercruiser Stern Drive 350 MAG ALPHA GM 1989
Mercruiser Stern Drive 5.7L GM 1989
Mercruiser Stern Drive 350 MAG ALPHA GM 1990
Mercruiser Stern Drive 5.7L GM 1990
Mercruiser Stern Drive 350 MAG ALPHA GM 1991
Mercruiser Stern Drive 5.7L GM 1991
Mercruiser Stern Drive 350 MAG ALPHA GM 1992
Mercruiser Stern Drive 5.7L GM 1992
Mercruiser Stern Drive 350 MAG ALPHA GM 1993
Mercruiser Stern Drive 5.7L GM 1993
Mercruiser Stern Drive 350 MAG ALPHA GM 1994
Mercruiser Stern Drive 5.7L GM 1994
Mercruiser Stern Drive 350 MAG ALPHA GM 1995
Mercruiser Stern Drive 5.7L GM 1995
Mercruiser Stern Drive 175 2 BBL. GM 1987
Mercruiser Stern Drive 205 4 BBL. GM 1987
Mercruiser Stern Drive 4.3L 2 BBL. GM 262 1988
Mercruiser Stern Drive 4.3L 2 BBL. GM 262 1989
Mercruiser Stern Drive 4.3L 2 BBL. GM 262 1990
Mercruiser Stern Drive 4.3L 2 BBL. GM 262 1991
Mercruiser Stern Drive 4.3L 2 BBL. GM 262 1992
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1988
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1989
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1990
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1991
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1992
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1993
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1994
Mercruiser Stern Drive 5.0LX 4 BBL. GM 1995
Mercruiser Stern Drive 5.0L 2 BBL. GM 1988
Mercruiser Stern Drive 5.0L 2 BBL. GM 1989
Mercruiser Stern Drive 5.0L 2 BBL. GM 1990
Mercruiser Stern Drive 5.0L 2 BBL. GM 1991
Mercruiser Stern Drive 5.0L 2 BBL. GM 1992
Mercruiser Stern Drive 5.0L 2 BBL. GM 1993
Mercruiser Stern Drive 5.0L 2 BBL. GM 1994
Mercruiser Stern Drive 5.0L 2 BBL. GM 1995
Mercruiser Stern Drive 4.3LX 4 BBL. GM 1988 205
Mercruiser Stern Drive 4.3LX 4 BBL. GM 1989 205
Mercruiser Stern Drive 4.3LX 4 BBL. GM 1990 205
Mercruiser Stern Drive 4.3LX 4 BBL. GM 1991 205
Mercruiser Stern Drive 4.3LX 4 BBL. GM 1992 205
Mercruiser Stern Drive 5.7L MIE GM 1988 260
Mercruiser Stern Drive 5.7L MIE GM 1989 260
Mercruiser Stern Drive 5.7L MIE GM 1991 260
Mercruiser Stern Drive 5.7L MIE GM 1992 260
Mercruiser Stern Drive 500 BULLDOG GM 1990 500
Mercruiser Stern Drive 500 BULLDOG GM 1991 500
Mercruiser Stern Drive 500 BULLDOG GM 1992 500
Mercruiser Stern Drive 500 BULLDOG GM 1993 500
Mercruiser Stern Drive 500 BULLDOG GM 1994 500
Mercruiser Stern Drive 500 BULLDOG GM 1995 500
Mercruiser Stern Drive 500 BULLDOG GM 1996 500
Mercruiser Stern Drive 500 GEN V GM 1994 500
Mercruiser Stern Drive 500 GEN V GM 1995 500
Mercruiser Stern Drive 500 GEN V GM 1996 500
Mercruiser Stern Drive 500 GEN VI GM 1997
Mercruiser Stern Drive 500 GEN VI GM 1998
Mercruiser Stern Drive 500 GEN VI GM 1997
Mercruiser Stern Drive 500 GEN VI GM 1998
Mercruiser Stern Drive 500 BULLDOG 1997
Mercruiser Stern Drive 500 BULLDOG 1998
Mercruiser Stern Drive 500 GEN. VI GM 1997
Mercruiser Stern Drive 500 GEN. VI GM 1998
Mercruiser Stern Drive 7.4L MPI MIE (L29) GEN. VI GM 1998
Mercruiser Stern Drive 454 MAG. MPI HORIZON (GEN. VI) GM
Mercruiser Stern Drive 8.2L MIE MPI (GEN. VI) GM
Mercruiser Stern Drive 7.4L BRAVO (MPI)(GEN. VI) GM 1998
Mercruiser Stern Drive 454 MAG MPI BRAVO (GEN VI) GM 1998
Mercruiser Stern Drive 502 MAG MPI BRAVO (GEN VI) GM 1998
Mercruiser Stern Drive 454 MAG MPI BRAVO (GEN VI) GM
Mercruiser Stern Drive 502 MAG. MPI BRAVO (GEN VI) GM
Mercruiser Stern Drive 8.2L MIE MPI (GEN. VI) GM
Mercruiser Stern Drive 454 MAG. MPI HORIZON (GEN. VI) GM
Mercruiser Stern Drive 454 MAG. MPI HORIZON (GEN. VI) GM
Mercruiser Stern Drive 500 BULLDOG 1999
Mercruiser Stern Drive 500 BULLDOG 2000
Mercruiser Stern Drive 500 BULLDOG 2001
Mercruiser Stern Drive 500 GEN. + GM 1999
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1981
Mercruiser Stern Drive 260 MIE GM 1981
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1982
Mercruiser Stern Drive 260 MIE GM 1982
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1983
Mercruiser Stern Drive 260 MIE GM 1983
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1984
Mercruiser Stern Drive 260 MIE GM 1984
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1985
Mercruiser Stern Drive 260 MIE GM 1985
Mercruiser Stern Drive 230 MIE 4 BBL. GM 1986
Mercruiser Stern Drive 260 MIE GM 1986
Mercruiser Stern Drive 228 4 BBL. GM 1982
Mercruiser Stern Drive 260 GM 1982
Mercruiser Stern Drive 228 4 BBL. GM 1983
Mercruiser Stern Drive 260 GM 1983
Mercruiser Stern Drive 898 2 BBL. GM 1983
Mercruiser Stern Drive 228 4 BBL. GM 1984
Mercruiser Stern Drive 260 GM 1984
Mercruiser Stern Drive 898 2 BBL. GM 1984
Mercruiser Stern Drive 200 2 BBL. GM 1985 200
Mercruiser Stern Drive 230 4 BBL. GM 1985
Mercruiser Stern Drive 260 GM 1985
Mercruiser Stern Drive 200 2 BBL. GM 1986 200
Mercruiser Stern Drive 230 4 BBL. GM 1986
Mercruiser Stern Drive 260 GM 1986
Mercruiser Stern Drive 185 4 BBL. GM 1983
Mercruiser Stern Drive 185 4 BBL. GM 1984
Mercruiser Stern Drive 300 TEMPEST GM 1985
Mercruiser Stern Drive 300 TEMPEST GM 1986
Mercruiser Stern Drive 5.7L SKI GM 1985
Mercruiser Stern Drive 5.7L SKI GM 1986
Mercruiser Stern Drive 5.7L SKI GM 1987
Mercruiser Stern Drive 185 2 BBL. GM 1987
Mercruiser Stern Drive 205 4 BBL. GM 1987
Mercruiser Stern Drive 450 GEN V GM 454 1995
Mercruiser Stern Drive 450 GEN V GM 454 1996
Mercruiser Stern Drive 500 BULLDOG
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1987
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1988
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1989
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1990
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1991
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1992
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1993
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1994
Mercruiser Stern Drive 5.7L COMPETITION SKI GM 350 1995
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1987
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1988
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1989
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1990
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1991
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1992
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1993
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1994
Mercruiser Stern Drive 230 MIE 4 BBL GM 305 1995
Mercruiser Stern Drive 260 4 BBL GM 1982
Mercruiser Stern Drive 260 4 BBL GM 1983
Mercruiser Stern Drive 260 4 BBL GM 1984
Mercruiser Stern Drive 260 4 BBL GM 1985
Mercruiser Stern Drive 260 4 BBL GM 1986
Mercruiser Stern Drive 260 MIE GM 1987
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1987
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1990
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1993
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1994
Mercruiser Stern Drive 5.0L MIE 4 BBL GM 1995
Mercruiser Stern Drive 5.7L MIE GM 1990
Mercruiser Stern Drive 5.7L MIE GM 1993
Mercruiser Stern Drive 575 GM 1990
Mercruiser Stern Drive 575 GM 1992
Mercruiser Stern Drive 7.4L BRAVO (MPI)(GEN. VI) GM 1999
Mercruiser Stern Drive 7.4L BRAVO (MPI)(GEN. VI) GM 2000
Mercruiser Stern Drive 7.4L MPI MIE (L29) GEN. VI GM 1999
Mercruiser Stern Drive 7.4L MPI MIE (L29) GEN. VI GM 2000
Mercruiser Stern Drive 540 STROKER 4V


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