One New Aftermarket Replacement Muffler for Caterpillar (Cat) Crawler Dozer, Loader, and Pipelayer

This aftermarket replacement muffler fits Caterpillar (Cat) D7G, D7G SA, D7GLGP crawler dozers, 571G and 572G pipelayers, and the 977L crawler loader. It is a direct-fit exhaust muffler for the engine exhaust system, replacing OEM part number 6N0731 and interchange number 9S9996.

Compatible Models

Caterpillar Crawler Dozers: D7, D7F, D7G, D7G SA, D7GLGP

Caterpillar Pipelayers: 571G, 572G

Caterpillar Crawler Loaders: 977L

Replaces Part Number(s):

6N0731, 9S9996, MUK40-0080

New aftermarket replacement part - not remanufactured, not used.