One New Aftermarket Replacement Muffler for Caterpillar (Cat) Crawler Dozers, Loaders, and Pipelayers

This aftermarket replacement muffler fits Caterpillar D7F, D7G, 977L, 571G, and 572G crawler dozers, track loaders, and pipelayers. It is a direct replacement for the exhaust muffler on these machines, restoring proper exhaust flow and sound attenuation to keep your equipment running efficiently.

Compatible Models

Caterpillar Crawler Dozers: D7F, D7G, D7G SA, D7GLGP

Caterpillar Track Loaders: 977L

Caterpillar Pipelayers: 571G, 572G

Replaces Part Number(s):

6N0731, 9S9996

Aftermarket Interchange Numbers

MUK40-0080

New aftermarket replacement part - not remanufactured, not used.