1W1662-030 Bearing,Eng. 0.030In=0. Fits Caterpillar ModelsOne New Aftermarket Replacement Main Bearing for Caterpillar (Cat) 3204 Engine This 0. 030 in. (0. 76 mm) oversize main bearing is a direct aftermarket replacement for the Caterpillar 3204 engine. Main bearings support the crankshaft at each journal and are a critical component in engine rebuilds requiring crankshaft grinding to the 0. 030 in. oversize specification. Three bearings are required per engine. Specifications Type: Main Bearing Oversize:
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