Mercury Grand Marquis Single Exhaust Exploded Parts Diagram - Part Numbers

This document is an exploded parts diagram of a single exhaust system, showing the layout of components from the dual downpipes (right and left sides) back to the tailpipe. Each side begins with a flange gasket (marked 'Gasket NR' for the right side and gasket 8772 on the left) connecting to catalytic converter/pipe assemblies labeled 642550 (exc. Calif.) for the right side and 642549 (exc. Calif.) for the left side, both carrying footnote reference [938]. The two pipes merge into a Y-pipe/intermediate pipe labeled 94001, which connects via a clamp or hanger labeled H200 to the muffler, part group 16107. Behind the muffler another gasket/flange 8772 joins the tailpipe assembly 64766. Hangers/insulators labeled 8233 support the system, with one location noted as '(2 used)' near the muffler outlet area and another 8233 supporting the tailpipe. A reader can learn the basic part group numbers, the order of assembly of the single-exhaust configuration, which converter assemblies exclude California emissions applications, and where gaskets and hangers are located. The diagram itself shows no year, make, model, or engine applicability text.