Caterpillar 9M-4878 Main Bearing - 9M4878
Main BearingService-grade Main Bearing for Caterpillar road construction machinery — 9M-4878 / 9M4878 — original-grade and OEM service parts. Global delivery. Backed by a 1-year warranty.
Caterpillar 9M-4878 / 9M4878 Main Bearing is an OEM and aftermarket main bearing set for Caterpillar diesel engines in demolition equipment. Manufactured to OEM overlay alloy composition and wall thickness for correct crankshaft journal clearance and reliable hydrodynamic lubrication under continuous operation. Ships with a 1-year warranty. Designed to perform reliably across extended service intervals.
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