Muffler Fits CAT Fits Caterpillar 571G 572G 94N 45W 72W 65W 44W 977L D7G Models

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One New Aftermarket Replacement Muffler Fits Caterpillar (Fits CAT) Crawler Dozers, Loaders, and PipelayersThis aftermarket replacement muffler is a direct-fit exhaust component Fi ts Caterpillar (Fits CAT) D7-series crawler dozers, 977L track loaders, and 571G/572G pipelayers. It replaces OEM part numbers 6N0731 and 9S9996 and is supplied as a single new unit.Compatible ModelsFits Caterpillar Crawler Dozers: D7, D7F, D7G, D7G SA, D7GLGPFits Caterpillar Track Loaders: 977L (Serial Prefix 72W)Fits Caterpillar Pipelayers: 571G (Serial Prefix 94N), 572G (Serial Prefix 45W)Additional Serial Prefixes Referenced: 65W, 44WReplaces Part Number(s):MUK40-0080, 6N0731, 9S9996New aftermarket replacement part - not remanufactured, not used. Show more