Parts for Mercury Marine V-175 HP Relief Valve System
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| # | 27-79583A81 | GASKET SET (1 required per assembly) SN# 5875204 THRU 6618750 |
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27-79583A81 - Engine Gasket Set [ More info ] Unavailable |
| # | NLA | No Longer Available, Gasket Set (1 required per assembly) (Service Bulletin 81-8) SN# USA-5875203/AUS-8072022 & Below |
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NLA - No Longer Availab [ More info ] Unavailable |
| # | 27-11338A88 | GASKET SET, Engine Overhaul (1 required per assembly) SN# 6618751 & Up |
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27-11338A88 - Engine Overhaul Gasket Set [ More info ] Unavailable |
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18-4319 - Gasket, 27-11338A88 [ More info ]
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| #3 | 68729 | COVER (1 required per assembly) (DESIGN I) |
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68729 - Cover [ More info ] Unavailable |
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68729 1 - Cover [ More info ] Unavailable |
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8M0039767 - Cover [ More info ]
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| #4 | 27-78690 | GASKET (2 required per assembly) (DESIGN I) |
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27-78690 - Cover To Block Gasket [ More info ] Unavailable |
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27-78690002 - Relief Valve Cover Gasket [ More info ]
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| #5 | 65664 | RELIEF VALVE PLATE (1 required per assembly) (DESIGN I) |
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65664 - Relief Valve Plate, NLA [ More info ] Unavailable |
| #6 | 65663A 1 | COVER (1 required per assembly) (DESIGN II) |
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65663A 1 - Cover [ More info ] Unavailable |
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65663A 2 - Cover Assembly [ More info ] Unavailable |
| #7 | 65664A 1 | PLATE ASSEMBLY (1 required per assembly) (DESIGN II) |
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65664A 1 - Plate Assembly [ More info ]
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| #8 | 27-88907 | GASKET, RELIEF VALVE PLATE (2 required per assembly) (DESIGN II) |
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27-88907 - Relief Valve Plate Gasket [ More info ] Unavailable |
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27-88907003 - Relief Valve Plate Gasket [ More info ]
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| #9 | 10-38837 | SCREW, (.312-18 x 1.12), COVER (2 required per assembly) (DESIGN I & II) |
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10-38837 - Screw - Priced Individually [ More info ]
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| #10 | 64877 | DIAPHRAGM (1 required per assembly) (DESIGN I & II) |
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64877 - Diaphragm [ More info ] Unavailable |
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64877 1 - Diaphragm [ More info ]
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| #11 | 12-76451 | WASHER (1 required per assembly) (DESIGN I & II) |
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12-76451 - Washer, Diaphragm [ More info ]
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| #12 | 10-69570 | SCREW, (#10-16 x .750) (1 required per assembly) (DESIGN I & II) |
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10-69570 - Screw [ More info ]
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| #13 | 24-64878 | SPRING (1 required per assembly) (DESIGN I & II) |
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24-64878 - Spring, Compresion Poppet Valve [ More info ]
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| #14 | 86596 | POPPET VALVE (1 required per assembly) (DESIGN I & II) |
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86596 - Poppet Valve [ More info ]
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| #15 | 65848 | CARRIER (1 required per assembly) (DESIGN I & II) |
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| #16 | 25-64872 | GROMMET (1 required per assembly) (DESIGN I & II) |
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25-64872 - Grommet, Poppet Relief Valve [ More info ]
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| #17 | 14462A 1 | COVER (1 required per assembly) (DESIGN III) |
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14462A 1 - Cover Assembly, NLA [ More info ]
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| #18 | 10-74824 | SCREW, (.312-18 x 1.250) (4 required per assembly) (DESIGN III) |
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10-74824 - Screw - Priced Individually [ More info ]
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| #20 | 16497A 1 | PLATE (1 required per assembly) (DESIGN III) |
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16497A 1 - Plate Kit [ More info ]
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| #21 | 14479 | DIAPHRAGM (1 required per assembly) (DESIGN III) |
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14479 - Diaphragm [ More info ] Unavailable |
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14479 1 - Diaphragm [ More info ]
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| #22 | 16496 | WATER DEFLECTOR (1 required per assembly) (DESIGN III) |
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16496 - Water Deflector [ More info ]
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| #26 | 14480 | POPPET (1 required per assembly) (DESIGN III) |
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14480 - Valve Poppet [ More info ]
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| #29 | 12-85303 | WASHER (1 required per assembly) (DESIGN III) |
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12-85303 - Washer [ More info ]
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