Parts for MerCruiser 140 GM 181 I / L4 1979-1982 Exhaust Manifold Assembly
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 52390A 1 | EXHAUST MANIFOLD ASSEMBLY (1 required per assembly) |
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52390A 1 - 52390A 1 - MANIFOLD ASSY O [ More info ] Unavailable Replaced by -96705A 1 |
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96705A 1 - Manifold Assembly [ More info ]
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18-1955-1 - Manifold, 96705A1 for Rochester - See Detail Page for Important Info [ More info ]
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MC-1-96705 - Mercruiser Manifold, Rochester Carb, See Detail Page [ More info ]
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MC-1-52390 - Mercruiser Manifold, 140HP (49 #) [ More info ]
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| #2 | 16-46545 | STUD, EXHAUST MANIFOLD TO EXHAUST ELBOW (1 3/4") (4 required per assembly) |
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| #3 | 22-32802 | PLUG, PIPE - EXHAUST MANIFOLD (1/8-27) (1 required per assembly) |
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22-32802 - Plug , Priced Individually [ More info ]
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22-32802 1 - 22-32802 1 - PLUG Pipe (.125-2 O [ More info ] Unavailable Replaced by 22-32802 2 |
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22-32802 2 - Plug - (brass) - Priced Individually [ More info ]
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18-4263 - Pipe Plug, 1/8-27 NPT Pi [ More info ]
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| #4 | 22-48118 | PLUG, EXHAUST MANIFOLD (1 required per assembly) |
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22-48118 - Plug, NLA [ More info ]
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| #5 | 22-32561 | PLUG, PIPE - EXHAUST MANIFOLD (1/4-18) (1 required per assembly) |
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22-32561 - Plug - Priced Individually [ More info ]
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| #6 | 32-53370 | TUBE, HEAD - EXHAUST MANIFOLD (1 required per assembly) |
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32-53370 - Tubing, NLA [ More info ]
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| #7 | 10-33231 | SCREW, PLUG - EXHAUST MANIFOLD (1/2") (2 required per assembly) |
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10-33231 - 10-33231 - SCREW (1/2 In.) O [ More info ] Unavailable Replaced by 10-98257 |
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10-98257 - Screw [ More info ]
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| #8 | 10-52143 | SCREW, EXHAUST MANIFOLD TO CYLINDER HEAD (4 3/4") (4 required per assembly) |
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10-52143 - Screw, NLA [ More info ]
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| #9 | 12-20553 | WASHER, EXHAUST MANIFOLD SCREW (6 required per assembly) |
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12-20553 - Washer - Priced Individually [ More info ]
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| #10 | 16-52093 | STUD, EXHAUST MANIFOLD TO CYLINDER HEAD (5 1/4") (2 required per assembly) |
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16-52093 - Stud, NLA [ More info ]
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| #11 | 11-49838 | NUT, EXHAUST MANIFOLD STUD (2 required per assembly) |
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11-49838 - Nut - Priced Individually [ More info ]
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| #12 | 60252 | END CAP/CONNECTOR, EXHAUST MANIFOLD (FRONT) (1 required per assembly) |
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60252 - 60252 - END CAP O [ More info ] Unavailable Replaced by -60252A 2 |
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60252A 2 - End Cap Assembly [ More info ]
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18-4009 - End Cap, 60252A 2 [ More info ]
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1-60252 - End Plate [ More info ]
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| #13 | 27-48043 | GASKET, END CAP/CONNECTOR TO EXHAUST MANIFOLD (1 required per assembly) |
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27-48043 - Gasket - Priced Individually [ More info ]
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27-48043 1 - Gasket - Priced Individually [ More info ]
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| #14 | 10-24234 | SCREW, END CAP/CONNECTOR TO EXH. MANIFOLD (1") (4 required per assembly) |
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10-24234 - 10-24234 - SCREW (.312-18 x O [ More info ] Unavailable Replaced by 10-35386 |
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10-35386 - Screw - Priced Individually [ More info ]
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| #16 | 10-29240 | SCREW, WIRING HARNESS CLAMP FASTENING (5/8") (2 required per assembly) |
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10-29240 - 10-29240 - SCREW O [ More info ] Unavailable Replaced by 10-32228 |
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10-32228 - Screw - Priced Individually [ More info ]
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| #17 | 12-24676 | WASHER, WIRING HARNESS CLAMP SCREW (3 required per assembly) |
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12-24676 - Washer [ More info ]
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| #18 | 73813A 1 | END CAP, EXHAUST MANIFOLD (REAR) (1 required per assembly) |
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73813A 1 - End Cap Assembly [ More info ]
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18-1990 - Block Off Plate, 73813A1 [ More info ]
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1-73813 - End Plate [ More info ]
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1-54870 - 1-73813 [ More info ]
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| #19 | 27-73814 | GASKET, END CAP TO ECHAUST MANIFOLD (1 required per assembly) |
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27-73814 - Gasket - Priced Individually [ More info ]
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27-73814 1 - Gasket - Priced Individually [ More info ]
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27-807218 - Gasket [ More info ]
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18-0928-9 - Gasket 27-73814 2-Pack [ More info ]
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| #20 | 10-25299 | SCREW, END CAP TO EXHAUST MANIFOLD (3/4") (4 required per assembly) |
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10-25299 - Screw - Priced Individually [ More info ]
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| #21 | 27-53354 | GASKET, EXHAUST MANIFOLD TO CYLINDER HEAD (1 required per assembly) |
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27-53354 - Gasket [ More info ]
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18-2912-1 - Gasket [ More info ]
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| #22 | 76351A 1 | EXHAUST ELBOW ASSEMBLY (1 required per assembly) |
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76351A 1 - 76351A 1 - ELBOW ASSEMBLY Ex O [ More info ] Unavailable Replaced by -76351A 2 |
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76351A 2 - Elbow Assembly [ More info ]
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76351A04 - Exhaust Elbow [ More info ]
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18-1971 - Elbow 76351A2 [ More info ]
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MC-20-76351 - Mercury Riser (24 #) [ More info ]
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MC-20-60426 - Mercury Riser (24 #) [ More info ]
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| #25 | 22-33198A 1 | PLUG, EXHAUST ELBOW (4 required per assembly) |
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22-33198A 1 - Plug [ More info ]
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22-41622 - Pipe Plug [ More info ]
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18-4258 - Pipe Plug, 3/4 x 14 [ More info ]
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| #26 | 27-52076 | GASKET, EXHAUST ELBOW TO EXHAUST MANIFOLD (1 required per assembly) |
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27-52076 - 27-52076 - GASKET O [ More info ] Unavailable Replaced by 27-99777 |
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27-99777 - 27-99777 - GASKET O [ More info ] Unavailable Replaced by 27-99777 1 |
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27-99777 1 - 27-99777 1 - GASKET O [ More info ] Unavailable Replaced by 27-99777 2 |
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27-99777 2 - Gasket - Priced Individually [ More info ]
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27-99777Q02 - Gasket [ More info ]
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| #27 | 13-37459 | LOCKWASHER, EXHAUST ELBOW TO EXHAUST MANIFOLD STUD (4 required per assembly) |
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13-37459 - LOCKWasher , Priced Individually [ More info ]
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13-35048 - LockWasher - Priced Individually [ More info ]
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| #29 | 32-47642 | HOSE ASSEMBLY, INLET - DIST. BLOCK TO DRIVE UNIT (33 1/2") (1 required per assembly) |
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32-47642 - Hose -49 Inch [ More info ]
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| #30 | 54-32523 | CLAMP, INLET HOSE TO WATER DIST. BLOCK TO DRIVE UNIT (2 required per assembly) |
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54-32523 - Clamp - Priced Individually [ More info ]
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54-815504310 - Clamp [ More info ]
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| #31 | 47587A 2 | BLOCK ASSEMBLY, WATER DISTRIBUTION - CYLINDER HEAD (1 required per assembly) |
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47587A 2 - 47587A 2 - HOUSING ASSEMBLY O [ More info ] Unavailable Replaced by -861493A 3 |
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861493A 3 - 861493A 3 - HOUSING ASSEMBLY O [ More info ] Unavailable Replaced by -861493A07 |
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861493A07 - Thermostat Housing [ More info ]
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18-1993 - Thermostat Housing - End Rise - Special Order - No Returns [ More info ]
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18-1910 - Thermostat Housing Kit, 861493A3 [ More info ]
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MC-29-60372 - Thermostat Housing [ More info ]
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MC-29-47587 - Thermostat Housing [ More info ]
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| #32 | 22-32803 | PLUG, PIPE - WATER DISTRIBUTION BLOCK (1 required per assembly) |
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18-4264 - Pipe Plug, 3/8-18 NPT [ More info ]
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| #34 | 27-33680 | GASKET, WATER DISTRIBUTION BLOCK (1 required per assembly) |
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27-33680 - Gasket - Priced Individually [ More info ]
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27-814680 - 27-814680 - GASKET * [ More info ] Unavailable Replaced by 27-814680 1 |
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27-814680 1 - Thermostat Housing Gasket [ More info ]
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| #35 | 10-21077 | SCREW, WATER DISTRIBUTION BLOCK TO CYLINDER HEAD (7/8") (2 required per assembly) |
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10-21077 - Screw, NLA [ More info ]
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| #36 | 22-53509 | ELBOW, WATER DISTRIBUTION BLOCK (1 required per assembly) |
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22-53509 - Elbow, NLA [ More info ]
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| #37 | 59078 | THERMOSTAT (1 required per assembly) |
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59078 - Thermostat -140 [ More info ]
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18-3550 - Thermostat 59078 [ More info ]
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59078Q 3 - Thermostat - Priced Individually [ More info ]
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| #38 | 27-47590 | GASKET, THERMOSTAT COVER (1 required per assembly) |
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27-47590 - Gasket - Priced Individually [ More info ]
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27-47590 1 - Gasket - Priced Individually [ More info ]
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27-47590Q01 - Gasket [ More info ]
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| #39 | 60372A 1 | COVER ASSEMBLY, THERMOSTAT - WATER DIST. BLOCK (1 required per assembly) |
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60372A 1 - 60372A 1 - COVER O [ More info ] Unavailable Replaced by -60372A 2 |
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60372A 2 - 60372A 2 - COVER ASSEMBLY O [ More info ] Unavailable Replaced by -47587A 2 |
| #40 | 10-60374 | SCREW, THERMOSTAT COVER ATTACHING (1 3/4") (2 required per assembly) |
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10-60374 - 10-60374 - SCREW (1.75 In.) O [ More info ] Unavailable Replaced by 10-75206 |
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10-75206 - Screw [ More info ]
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10-881892 - Screw [ More info ]
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| #41 | 12-36533 | WASHER, THERMOSTAT COVER SCREW (1 required per assembly) |
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12-36533 - Washer [ More info ]
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| #43 | 32-52481 | HOSE, WATER DIST. BLOCK TO END CAP/CONNECTOR (1 required per assembly) |
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18-70930 - Hose, 32-52481 [ More info ]
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| #44 | 54-32780 | CLAMP, HOSE TO WATER DIST. BLOCK AND END CAP/CONNECTOR (2 required per assembly) |
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54-32780 - Clamp [ More info ]
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54-815504220 - Clamp [ More info ]
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| #45 | 32-47640 | HOSE, WATER DISTRIBUTION BLOCK TO WATER PUMP (1 required per assembly) |
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32-47640 - 32-47640 - HOSE O [ More info ] Unavailable Replaced by 32-96879 |
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32-96879 - 32-96879 - HOSE O [ More info ] Unavailable Replaced by 32-8M0071007 |
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32-8M0071007 - Hose [ More info ]
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18-70931 - Hose, 32-96879, 311075 [ More info ]
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| #46 | 54-32781 | CLAMP, HOSE TO WATER DIST. BLOCK AND WATER PUMP (2 required per assembly) |
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54-32781 - Clamp Note: Must be ordered in multiples of 2 [ More info ]
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54-815504228 - Clamp [ More info ]
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