MerCruiser 4 Cylinder 153 Front End Cap Connector Replaces B-47638 

Direct replacement exhaust manifold end cap/connector (front).

Replaces MerCruiser 47638A1, Mallory 9-40543 and Sierra 18-1995.

Fits MerCruiser 4 cylinder 153 C.I.D. 120 H.P., Model 120 engine (log style direct replacement).

• Replaces MerCruiser part # B-47638.

Compatible parts:

• MC-1-63122 direct replacement water cooled exhaust manifold.
• MC-20-55538 direct replacement exhaust elbow/ riser.

Manufactured by Barr Marine. Part number 1-47638.