Parts for MerCruiser 7.4L Bravo GM 454 V-8 1988-1991 Thermostat Housing (Old Design)
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 90736A18 | HOUSING ASSEMBLY (1 required per assembly) |
  |
|
90736A18 - Thermostat Housing Assembly [ More info ]
|
  |
|
MC-29-90736 - Thermostat Housing [ More info ]
|
| #2 | 23-47511 | SLEEVE, THERMOSTAT HOUSING (1 required per assembly) |
  |
|
23-47511 - Sleeve [ More info ]
|
| #3 | 22-32803 | PLUG, Pipe (.375-18) Brass (2 required per assembly) |
  |
|
|
  |
|
18-4264 - Pipe Plug, 3/8-18 NPT [ More info ]
|
| #4 | 27-53045 1 | GASKET, THERMOSTAT HOUSING (1 required per assembly) |
  |
|
27-53045 1 - Gasket - Priced Individually [ More info ]
|
  |
|
18-2917-9 - Gasket 27-530451 2-Pack [ More info ]
|
  |
|
27-53045Q01 - Gasket [ More info ]
|
| #5 | 59137 | THERMOSTAT, (140 Degrees) (143 Degrees) (1 required per assembly) |
 |
|
59137 - 59137 - THERMOSTAT (140 D O [ More info ] Unavailable Replaced by -805273 1 |
|
|
805273 1 - 805273 1 - THERMOSTAT (140 D O [ More info ] Unavailable Replaced by -807252 1 |
  |
|
807252 1 - 807252 1 - THERMOSTAT O [ More info ] Unavailable Replaced by -807252T 1 |
  |
|
807252T 1 - 807252T 1 - THERMOSTAT 60 Deg O [ More info ] Unavailable Replaced by -8M0089715 |
  |
|
8M0089715 - Thermostat-140 [ More info ]
|
  |
|
807252Q 4 - Thermostat Kit [ More info ]
|
  |
|
18-3551 - Thermostat 807252T1, 59137 [ More info ]
|
| #6 | 27-47510 | GASKET, THERMOSTAT (1 required per assembly) |
  |
|
27-47510 - Gasket - Priced Individually [ More info ]
|
  |
|
18-2553-9 - Gasket 27-47510 2-Pack [ More info ]
|
| #7 | 23-47508 | SLEEVE, THERMOSTAT (1 required per assembly) |
|
|
23-47508 - 23-47508 - SLEEVE O [ More info ] Unavailable Replaced by 23-47508T |
  |
|
23-47508T - Thermostat Sleeve [ More info ]
|
| #8 | 27-41812 | GASKET, THERMOSTAT COVER (2 required per assembly) |
  |
|
27-41812 - Gasket [ More info ]
|
  |
|
18-2554-9 - Gasket 27-41812 2-Pack [ More info ]
|
  |
|
27-41812Q - Gasket [ More info ]
|
|
|
27-41812B - Gasket - Priced Individually [ More info ]
|
| #10 | 47442A 1 | COVER, THERMOSTAT (1 required per assembly) |
  |
|
47442A 1 - Thermostat Cover [ More info ]
|
|
|
8M0061068 - THERM Cover Housing [ More info ]
|
  |
|
MC-29-47442 - Thermostat Housing [ More info ]
|
| #11 | 10-48130 | SCREW, (.375-16 x 4.500), THERMOSTAT HOUSING TO INTAKE MANIFOLD (2 required per assembly) |
|
|
10-48130 - Screw, NLA [ More info ]
|
| #12 | 13-35048 | LOCKWASHER, (.375), THERMOSTAT HOUSING SCREW (2 required per assembly) |
  |
|
13-35048 - LockWasher - Priced Individually [ More info ]
|
| #13 | 22-98477A 2 | VALVE ASSEMBLY (1 required per assembly) |
  |
|
22-98477A 2 - Valve Assembly [ More info ]
|
| #14 | 32-33220 70 | HOSE, (48.00 Inches Bulk), TEE TO EXHAUST ELBOWS (19') (2 required per assembly) |
  |
|
32-33220 70 - 32-33220 70 - HOSE (48.00 Inche O [ More info ] Unavailable Replaced by 32-8M0062614 |
  |
|
32-8M0062614 - Water Hose [ More info ]
|
| #15 | 54-32780 | CLAMP, HOSE ATTACHING (AR required per assembly) |
|
|
54-32780 - 54-32780 - CLAMP O [ More info ] Unavailable Replaced by 54-815504220 |
  |
|
54-815504220 - Clamp [ More info ]
|
| #16 | 32-17435 70 | HOSE, (48.00 Inches Bulk), SEA PUMP TO DRIVE UNIT (1 required per assembly) |
|
|
32-17435 70 - 32-17435 70 - HOSE (48.00 Inche O [ More info ] Unavailable Replaced by 32-17435 79 |
|
|
32-17435 79 - 32-17435 79 - HOSE (96.00 Inche O [ More info ] Unavailable Replaced by 32-863343 79 |
|
|
32-863343 79 - 32-863343 79 - HOSE (96.00 Inche O [ More info ] Unavailable Replaced by 32-865672079 |
  |
|
32-865672079 - 32-865672079 - HOSE (96.00 Inche O [ More info ] Unavailable Replaced by 32-8M0062666 |
  |
|
32-8M0062666 - Water Hose Bulk -96" [ More info ]
|
| #17 | 32-18159 | HOSE, OIL COOLER TO SEA PUMP (1 required per assembly) |
  |
|
32-18159 - HOSE O NLA [ More info ] Unavailable |
| #18 | 54-47715 | CLIP, HOSE ATTACHING (2 required per assembly) |
|
|
|
| #19 | 32-11011 | HOSE, THERMOSTAT HOUSING TO OIL COOLER (1 required per assembly) |
  |
|
32-11011 - 32-11011 - HOSE O [ More info ] Unavailable Replaced by 32-897142 |
  |
|
32-897142 - Hose [ More info ]
|
| #20 | 32-89718 | HOSE, THERMOSTAT HOUSING TO WATER PUMP (1 required per assembly) |
|
|
32-89718 - 32-89718 - HOSE O [ More info ] Unavailable Replaced by 32-89718 1 |
  |
|
32-89718 1 - Molded Hose [ More info ]
|
| #21 | 54-87268 | CLAMP, HOSE ATTACHING (2 required per assembly) |
|
|
54-87268 - Clamp [ More info ]
|
  |
|
54-815504232 - Clamp [ More info ]
|
| #22 | 32-89749 | HOSE, THERMOSTAT COVER TO EXHAUST MANIFOLD (PORT) (1 required per assembly) |
|
|
32-89749 - HOSE O [ More info ] Unavailable |
| #23 | 32-89730 | HOSE, THERMOSTAT COVER TO EXHAUST MANIFOLD (STBD.) (1 required per assembly) |
|
|
32-89730 - 32-89730 - HOSE O [ More info ] Unavailable Replaced by 32-89730 1 |
  |
|
32-89730 1 - Molded Hose [ More info ]
|
| #24 | 12552 | LIFTING EYE (1 required per assembly) |
  |
|
12552 - Lifting Eye [ More info ]
|
| #- | 27-65184A88 | GASKET SET, Engine (1 required per assembly) |
  |
|
27-65184A88 - Gasket Set [ More info ]
|
