Mercruiser 4-Cylinder 181 C.I.D. 140 H.P.
Model 140 engine: Log style direct replacement

Part Number | Description |
---|---|
MC-1-52390 | Direct replacement water cooled exhaust manifold. Replaces MerCruiser part number B-52390A1. For serial number 3332138 and up. |
MC-20-60426 | Direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area). Replaces MerCruiser part number B-60426A1. |
MC-20-76351 | Direct replacement exhaust elbow riser. Replaces MerCruiser part number B-76351A1. Not pictured. |
1-54870 | Direct replacement exhaust manifold rear end cap. Serial number 4481625 and below. |
1-54870P | Rear end cap mounting package. |
1-60252 | Direct replacement exhaust manifold end cap / connector. Replaces MerCruiser part number B-60252. |
1-60252P | Front end plate mounting package. |
1-73813 | Direct replacement exhaust manifold rear end cap. Serial number 4481625 and up. |
MC-1-52390P | Exhaust manifold mounting package. |
MC-20-55730 | Stainless steel fresh water cooling block off plate for use with MerCruiser riser numbers 60426, 76351 and 76771. Requires two (2) gaskets—part number MC47-27-52076. |
MC-20-60207 | Stainless steel block off plate (with vent hole) for use with MerCruiser riser numbers 60426, 76351 and 76771. Requires two (2) gaskets—part number MC47-27-52076. Used in pre-heating plumbing systems. |
MC-20-60426P | Exhaust riser elbow mounting package. For use with both MC-20-60426 and MC-20-76351 risers. |
MC-20-61851A3 | Manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug. |
MC-29-47587 | Lower thermostat housing. |
MC-29-60372 | Upper thermostat housing. |
MC47-475KIT | Thermostat kit (includes gasket and thermostat). |
MC47-27-48043 | Direct replacement exhaust manifold end cap / connector gasket (will fit both ends). |
MC47-27-52076 | Direct replacement exhaust elbow to exhaust manifold gasket. |
MC47-27-53354 | Direct replacement exhaust manifold to cylinder head gasket. |
MC47-27-53354A1 | Exhaust manifold gasket set. |
MC47-27-73814 | Direct replacement exhaust manifold end cap gasket. Utilized with 1-73813 rear end cap. |
Note
Manifold includes all plugs, gaskets and mounting hardware to head. Risers include plugs, gasket and mounting hardware to mount to manifold.