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Mercruiser 4-Cylinder 153 C.I.D. 120 H.P.

Model 120 engine: Log style direct replacement

Mercruiser 4-Cylinder 153 C.I.D. 120 H.P.
Part Number Description
MC-1-63122 Direct replacement water cooled exhaust manifold. Replaces MerCruiser part number B-63122A1.
MC-20-55538 Direct replacement exhaust elbow / riser. Replaces MerCruiser part numbers B-39920 and B-55538A2.
MC-20-55538P Riser to exhaust manifold mounting package.
1-39949P Choke oven cover assembly. Not pictured.
1-47638 Direct replacement exhaust manifold end cap / connector (front). Replaces MerCruiser part number B-47638.
1-47638P Exhaust manifold end cap/connector (front) mounting package.
1-73811 Direct replacement exhaust manifold end cap (rear).
1-73811P Exhaust manifold end cap (rear) mounting package.
MC-1-35898P Intake manifold mounting package.
MC-1-63122P Exhaust manifold mounting package.
MC-29-47587 Direct replacement lower thermostat housing.
MC-29-60372 Direct replacement upper thermostat housing.
MC47-475KIT Thermostat kit (includes gasket and thermostat).
MC47-27-35898 Direct replacement intake manifold gasket.
MC47-27-35898A4 Exhaust manifold gasket set.
MC47-27-39915 Direct replacement exhaust manifold to exhaust elbow gasket.
MC47-27-39917 Direct replacement exhaust manifold end cap / connector gasket.
MC47-27-39923 Direct replacement exhaust manifold
MC47-27-52546 Direct replacement exhaust manifold to cylinder head gasket.
Note
Manifold includes all plugs, gaskets and mounting hardware to head. Risers include plugs, gasket and mounting hardware to mount to manifold.