Perkins Muffler

[Jeff August]

Hello
Does anyone know where I can get a new muffler for our Perkins
generator, it has threds on both ends unlike a normal muffler.It has a
crack on the back side.
Also does anyone know where to get a gasket for the exaust cooler where
the exaust connects to it, its been dripping anti freeze for awhile and
all attemps to make it stop have not worked.
Thankyou!
Michelle and Jeff August
1980FCRB35
Plymouth Wi.