Mercruiser 305 Manifolds and Risers

[20pilot]

I have been trying to research manifolds and risers for my 305 Mercruiser 5.0 MPI, serial number OM669371. Seems I am not able to locate any though Sierra or Barr. Would anyone know the part numbers associated with the manifolds and risers for this engine?

Thanks

 

[Bt Doctur]

that serial number show that you have the "dry joint" system.

864308T01

2

MANIFOLD ASSEMBLY, Exhaust

864309T01

2

ELBOW ASSEMBLY, Exhaust

 

[Bt Doctur]

that serial number show that you have the "dry joint" system.

864308T01

2

MANIFOLD ASSEMBLY, Exhaust

864309T01

2

ELBOW ASSEMBLY, Exhaust

864850A 1	2	GASKET, Elbow, Resitrictor	(Standard Cooling)
12	864549A 1	2	GASKET, Elbow, Block Off	(Closed Cooling)

 

[20pilot]

Thanks for the quick response! Does this have to come from Mercruiser, or are there aftermarket components available?

 

[Bt Doctur]

The major companies make them , guess all are made outside the us by now.

 

[Fun Times]

Thanks for the quick response! Does this have to come from Mercruiser, or are there aftermarket components available?

The exhaust manifold part number above has Superseded to 865735A02 and Barr does have dry joint aftermarket replacements found about half way down in the link below. You'll find the elbow and gasket part numbers there too.

http://www.barrmarine.net/mercruiser.html