Parts for MerCruiser 3.0L GM 181 I / L4 Standard Cooling System
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 861493A06 | HOUSING ASSEMBLY, Thermostat (1 required per assembly) |
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861493A06 - Thermostat Housing [ More info ]
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| #2 | 48952 | SWITCH ASSEMBLY, Audio Warning (1 required per assembly) |
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48952 - Temperature Switch Assembly [ More info ]
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| #3 | 807252T 2 | THERMOSTAT, 71°C (160°F) (1 required per assembly) |
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807252T 2 - 807252T 2 - THERMOSTAT 71Degr O [ More info ] Unavailable Replaced by -8M0091470 |
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8M0091470 - 8M0091470 - THERMOSTAT 71Degr * [ More info ] Unavailable Replaced by -8M0109441 |
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8M0109441 - Thermostat, 160 Degree [ More info ]
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18-3649 - Thermostat, 160 Degree, 807252T2 [ More info ]
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| #4 | 23-806922 | SLEEVE (1 required per assembly) |
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23-806922 - Sleeve [ More info ]
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| #5 | 27-33179 2 | GASKET (1 required per assembly) |
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27-33179 2 - Gasket - Priced Individually [ More info ]
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27-33179Q02 - Gasket [ More info ]
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| #6 | 17494A 1 | COVER KIT (1 required per assembly) |
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17494A 1 - Cover Kit (Black) [ More info ]
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| #7 | 27-806871 | GASKET (1 required per assembly) |
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27-806871 - Gasket - Priced Individually [ More info ]
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| #8 | 10-37612 | SCREW, (.375-16 x 1.250) (2 required per assembly) |
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10-37612 - Screw - Priced Individually [ More info ]
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| #9 | 12552 | LIFTING EYE (1 required per assembly) |
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12552 - Lifting Eye [ More info ]
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| #10 | 27-814680 1 | GASKET (1 required per assembly) |
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27-814680 1 - Thermostat Housing Gasket [ More info ]
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| #11 | 10-90059 | SCREW, (.375-16 x .875) (2 required per assembly) (Without Power Steering) |
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10-90059 - Screw [ More info ]
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| #11 | 10-90187 | SCREW, (.375-16 x 1.250) (1 required per assembly) |
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10-90187 - Screw [ More info ]
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| #12 | 32-96879 | HOSE, Housing to Water Pump (1 required per assembly) |
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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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| #13 | 32-861634 | HOSE, Housing to Manifold (1 required per assembly) (4.00 Inch) |
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32-861634 - Hose [ More info ]
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| #14 | 54-815504220 | CLAMP, Worm Gear (1.75 Inch Diameter) (1 required per assembly) |
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54-815504220 - Clamp [ More info ]
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| #14 | 54-815504216 | CLAMP, Worm Gear (1.56 Diameter) (1.56 Inch Diameter) (2 required per assembly) |
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54-815504216 - Clamp [ More info ]
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| #15 | 87-866115 | Temperature Switch, (Normally Open 130-110 degrees), TKS (1 required per assembly) |
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87-866115 - Temperature Switch [ More info ]
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| #16 | 861554T02 | COOLER, Power Steering (1 required per assembly) (Composite) |
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861554T02 - COOLER O NLA [ More info ] Unavailable |
| #17 | 861554T01 | COOLER, Power Steering (1 required per assembly) (Metal) |
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861554T01 - COOLER * [ More info ] In stock  |
| #18 | 805546A 2 | BRACKET, Oil Cooler (1 required per assembly) |
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805546A 2 - Bracket - OilCooler [ More info ]
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| #19 | 10-816585 | SCREW, (.375-18 x .875), Cooler Mounting Bracket (1 required per assembly) Metal Cooler |
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10-816585 - Screw [ More info ]
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| #19 | 10-8M2016106 | SCREW, (.312 x 1.25) (1 required per assembly) Composite Cooler (Included with 861554T02) |
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10-8M2016106 - Screw [ More info ]
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| #20 | 54-815504222 | CLAMP, Worm Gear (1.98 DIameter) (1 required per assembly) (With Power Steering) |
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54-815504222 - Clamp - Priced Individually [ More info ]
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| #21 | 54-815504212 | CLAMP, Worm Gear, Hose - Diameter (1.31 Inch) (1 required per assembly) (With Power Steering) |
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54-815504212 - Clamp [ More info ]
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| #22 | 32-862325 | HOSE, Transom to Thermostat Housing (1 required per assembly) (Without Power Steering) |
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32-862325 - Hose Assembly [ More info ]
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| #23 | 54-815504232 | CLAMP, Worm Gear (2.50 Diameter) (2.50 Inch) (2 required per assembly) |
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54-815504232 - Clamp [ More info ]
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| #24 | 806490T | SENDER (1 required per assembly) |
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806490T - Water Temperature Sender [ More info ]
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18-5897 - Sender, 97257A1 [ More info ]
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| #25 | 32-862324 | HOSE, Power Steering Cooler to Thermostat Hsg. (1 required per assembly) (With Power Steering) |
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32-862324 - Hose Assembly [ More info ]
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| #26 | 32-807661 | HOSE, Power Steering Cooler to Transom (1 required per assembly) (Without Power Steering) |
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32-807661 - Molded Hose [ More info ]
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| #- | 27-810846A05 | GASKET SET, Engine Overhaul (1 required per assembly) |
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27-810846A05 - Gasket Set [ More info ]
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| #NS | 19-807992 3 | COVER, Hose Clamp End (AR required per assembly) |
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19-807992 3 - Cover-.375 - Priced Individually [ More info ]
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19-8M6500037 - 19-8M6500037 - COVER O [ More info ] Unavailable Replaced by 19-8M0074364 |
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198M0074364 - Cover-Clamp - Priced Individually [ More info ]
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