Fits Caterpillar MUFFLER 6N5437 NEWOne New Aftermarket Replacement Muffler Fits Caterpillar (Fits CAT) D8K Crawler Tractor and 583K Pipelayer This aftermarket replacement muffler is a direct fit exhaust muffler Fits Caterpillar (Fits CAT) D8K crawler tractors and 583K pipelayers. It replaces the original Fits CAT muffler assembly in the exhaust system, restoring proper engine back pressure and noise attenuation for heavy construction equipment operation. Specifications Length: 990. 6
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