Solidsquad Catia V5 ^new^ [100% High-Quality]
Absolutely. This is a key feature. Import the assembly, then use Solidsquad's "Simplification" tool to remove internal components, fill holes, and export a single, lightweight CATPart for CFD or FEA.
A Solid Quad can be interpreted as creating a solid model from a quadrilateral shape. Here's a general approach: solidsquad catia v5