149-6031 Caterpillar 3516 Main Bearing | Engine Rebuild Parts

CAT 149-6031 Caterpillar 3516 Main Bearing

OEM-quality crankshaft main bearing for Caterpillar 3516 diesel engines. Provides a precision bearing surface between the crankshaft main journal and the engine block bearing bore, supporting the full rotating assembly load while maintaining a hydrodynamic oil film to prevent metal-to-metal contact. Manufactured to OEM specifications for correct wall thickness, width, oil groove and hole geometry, and bearing material, ensuring reliable performance and long service life under heavy-duty continuous operation. Essential for engine block rebuild and crankshaft overhaul. Ideal for global parts retailers, repair service providers, and heavy-duty diesel engine workshops.

Part Specifications

• Part Number: 149-6031
• Brand: Caterpillar (CAT)
• Component: Main Bearing (Crankshaft Main Bearing)
• Condition: New / OEM Replacement
• Country of Origin: China
• HS Code: 8409.99
• Application: Industrial / Marine / Power Generation

Compatible Engine Models

• Caterpillar 3516
• Caterpillar 3516B
• Caterpillar 3516C
• Please confirm compatibility with your engine serial number before ordering.

Cross Reference Numbers

149-6031 | 1496031 | CAT1496031

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