Parts for MerCruiser 198 MIE (2 Barrel.) GM 305 V-8 1977 Power Steering Components
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 57-77274 | V-BELT, PUMP (39 1/2") -LOW MOUNTED P/S PUMP (1 required per assembly) |
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57-77274 - V BELT O NLA [ More info ] Unavailable |
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18-15325 - V-Belt [ More info ]
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| #1 | 57-91035 | V-BELT, PUMP (49 1/2) -HIGH MOUNTED P/S PUMP (1 required per assembly) |
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57-91035 - 57-91035 - V BELT O [ More info ] Unavailable Replaced by 57-91035A 1 |
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57-91035A 1 - V-Belt [ More info ]
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57-91035Q 1 - V BELT, 49.50 LG O NLA [ More info ] Unavailable |
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18-15495 - V-Belt - Special Order - No Returns [ More info ]
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| #2 | 73873 | PULLEY, STERRING PUMP (1 required per assembly) |
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73873 - 73873 - PULLEY O [ More info ] Unavailable Replaced by -73873A 1 |
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73873A 1 - Pulley (Black) [ More info ]
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18-8227 - Pulley, 73873A1 [ More info ]
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| #3 | 57611 | BRACKET, PUMP (LOW MOUNTED P/S PUMP) (1 required per assembly) |
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57611T - Bracket, NLA [ More info ]
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| #3 | 90981A 2 | BRACKET, PUMP (HIGH MOUNTED P/S PUMP) (1 required per assembly) |
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90981A 2 - Bracket Assembly, NLA [ More info ]
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| #4 | 10-32132 | SCREW, STERRING PUMP TO BRACKET (1 3/4")-NON METRIC (1 required per assembly) |
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10-32132 - Screw [ More info ]
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| #4 | 10-40001203 | SCREW, STERRING PUMP TO BRACKET (45MM)-METRIC (1 required per assembly) |
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10-40001203 - Screw [ More info ]
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| #5 | 13-35048 | LOCKWASHER, STEERING PUMP SCREW (NON METRIC) (1 required per assembly) |
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13-35048 - LockWasher - Priced Individually [ More info ]
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| #5 | 13-40024008 | LOCKWASHER, STEERING PUMP SCREW(METRIC) (1 required per assembly) |
| #6 | 23-36534 | SPACER, STEERING PUMP SCREW(NON METRIC) (1 required per assembly) |
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23-36534 - 23-36534 - BUSHING O [ More info ] Unavailable Replaced by 23-90523 |
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23-90523 - Spacer [ More info ]
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| #6 | 23-90523 | SPACER, STEERING PUMP SCREW(METRIC) (1 required per assembly) |
| #7 | 10-34354 | SCREW, BRACKET TO CYLINDER BLOCK (1 1/2") (2 required per assembly) |
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10-34354 - Screw - Priced Individually [ More info ]
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| #9 | 12-38622 | WASHER, BRACKET SCREW (FOR SLOT) (1 required per assembly) |
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12-38622 - Washer [ More info ]
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| #10 | 11-68411 | NUT, STEERING PUMP STUD (NON METRIC) (1 required per assembly) |
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11-68411 - 11-68411 - NUT (.375-16) O [ More info ] Unavailable Replaced by 11-826709 12 |
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11-826709 12 - Nut - Priced Individually [ More info ]
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| #10 | 11-90517 | NUT, STEERING PUMP STUD (METRIC) (1 required per assembly) |
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| #11 | 49770 | OIL COOLER (SERIAL #5182832 AND BELOW) (1 required per assembly) |
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49770 - COOLER Oil O NLA [ More info ] Unavailable |
| #11 | 77912 | OIL COOLER (SERIAL #5182833 AND UP) (1 required per assembly) |
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77912 - 77912 - COOLER Oil O [ More info ] Unavailable Replaced by -77912A 3 |
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77912A 3 - 77912A 3 - OIL COOLER ASSY O [ More info ] Unavailable Replaced by -99356A 2 |
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99356A 2 - Oil Cooler [ More info ]
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18-2587 - Oil Cooler [ More info ]
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| #12 | 54-32781 | CLAMP, OIL COOLER TO BRACKET (2 required per assembly) |
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54-32781 - Clamp - Priced Individually [ More info ]
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54-815504228 - Clamp [ More info ]
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| #13 | 54-64324 | CLAMP, HOSE ATTACHING TO OIL COOLER (2 required per assembly) |
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54-64324 - Clamp, NLA [ More info ]
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| #14 | 49748A 1 | BRACKET ASSEMBLY, OIL COOLER (1 required per assembly) |
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49748A 1 - BRACKET O NLA [ More info ] Unavailable |
| #15 | 49735 | BRACKET, OIL COOLER MOUNT (1 required per assembly) |
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49735A 1 - BRACKET ASSY O NLA [ More info ] Unavailable |
| #16 | 10-20359 | SCREW, OIL COOLER MOUNT BRACKET (1 required per assembly) |
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10-20359 - Screw - Priced Individually [ More info ]
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| #18 | 22-37760 | ELBOW, OIL COOLER (2 required per assembly) |
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22-37760 - Elbow, NLA [ More info ]
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| #19 | 85011A 1 | BRACKET, HYDRAULIC PUMP (1 required per assembly) |
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85011A 1 - Bracket Assembly, NLA [ More info ]
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| #20 | 10-26487 | SCREW, BRACKET TO HYDRAULIC PUMP (1 1/8")-NON METRIC (2 required per assembly) |
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10-26487 - Screw [ More info ]
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| #20 | 10-40001194 | SCREW, BRACKET TO HYDRAULIC PUMP (30MM)-METRIC (2 required per assembly) |
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10-40001194 - 10-40001194 - SCREW (M10 x 30) O [ More info ] Unavailable Replaced by 10-40001195 |
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10-40001195 - Screw [ More info ]
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| #22 | 23-36365 | SPACER, BRACKET SCREW (NON METRIC) (2 required per assembly) |
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23-36365 - Spacer [ More info ]
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23-90520 - 23-90520 - SPACER O [ More info ] Unavailable Replaced by 23-90520 1 |
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23-90520 1 - Spacer [ More info ]
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| #22 | 23-90520 | SPACER, BRACKET SCREW (METRIC) (2 required per assembly) |
| #23 | 88777 | BRACE, POWER STEERING PUMP (1 required per assembly) |
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88777 - Brace, NLA [ More info ]
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| #24 | 10-37612 | SCREW, BRACE TO BRACKET (1 1/4") (1 required per assembly) SERIAL 00000000-#5182832 |
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10-37612 - Screw - Priced Individually [ More info ]
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| #25 | 12-34714 | WASHER, BRACE SCREW (1 required per assembly) SERIAL 00000000-#5182832 |
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12-34714 - Washer [ More info ]
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| #24 | 10-34353 | SCREW, BRACE TO BRACKET (1") (1 required per assembly) SERIAL #5182833-09999999 |
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10-34353 - Screw - Priced Individually [ More info ]
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| #27 | 11-32219 | NUT, BRACE SCREW (1 required per assembly) |
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11-32219 - Nut - Priced Individually [ More info ]
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| #28 | 10-76926 | SCREW, BRACE TO ENGINE (5/8") (1 required per assembly) |
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10-76926 - Screw [ More info ]
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