21722581 Volvo Penta Heat Exchanger. This is a drop in replacement for the part numbers show below. As with all of our parts, this part is guaranteed for fit and function. Equivalent materials have been used to assure the product life is conssitent with OEM product. The part comes complete and ready to install.

These are all the same part for us.

21611820

21722581

22997908

22247497

23268396.

Compatible with Volvo Engines: Gasoline V8-380-C-A V8-380-C-B V8-380-CE-A V8-350-CE-D V8-380-CE-D V8-430-CE-D V8-350-C-D V8-380-C-D

SEE PHOTO 3: The plastic housing shown is from your original unit. You will reuse that.  The clover shaped brass peice will mount with the same bolts as are currently in your thermostat housing.  Confirming: It will bolt up directly using the current bolts in the housing.