Caterpillar 8N-0503 Main Bearing - 8N0503
Main BearingSource Caterpillar Main Bearing (8N-0503 / 8N0503) — OEM-grade and original wear parts and components for earthmoving equipment. 1-year warranty. Worldwide shipping.
OEM and aftermarket replacement Main Bearing for Caterpillar diesel engines in industrial equipment. Manufactured to original main bearing shell specifications for correct journal clearance and reliable crankshaft lubrication. Ships with a 1-year warranty. Sourced from certified supply chains for quality assurance. Verified and dispatched worldwide with tracked international shipping.
Caterpillar