Caterpillar

3178766 is a crankshaft main bearing used in Caterpillar diesel engines.&nbsp; 
This aftermarket version by CTP provides stable support for the crankshaft, ensuring proper lubrication and load distribution.

Specifications: 
&ndash; Part Number: 3178766 
&ndash; Manufacturer: CTP (aftermarket) 
&ndash; Component Type: Main Bearing (Crankshaft) 
&ndash; Outer Diameter: 131.29 mm 
&ndash; Width: 41.65 mm 
&ndash; Material: Steel-backed copper-lead alloy 
&ndash; Chamfer: Both ends 
&ndash; Size: STD 
&ndash; Condition: New

Product details: 
&ndash; Supports crankshaft rotation under high load 
&ndash; Ensures proper oil film formation and wear resistance 
&ndash; Precision-machined for correct oil clearance 
&ndash; Designed for heavy-duty operation in CAT engines 
&ndash; Suitable for engine rebuilds and overhauls

Compatible engines: 
&ndash; CAT 3406E 
&ndash; CAT C15 
&ndash; CAT C16 
&ndash; CAT C18 
&ndash; Industrial and off‑highway engines using 4W5492 bearing group

Applications: 
&ndash; Crankshaft support 
&ndash; Engine rebuild and overhaul 
&ndash; Replacement of worn or damaged main bearings

Key features: 
&ndash; Aftermarket CTP main bearing 
&ndash; Steel-backed copper-lead construction 
&ndash; High load capacity and long service life 
&ndash; Direct-fit replacement for CAT 3178766

Caterpillar 3178766 main bearing by CTP (Costex) for 3406E, C15, and C18 engines. Aftermarket crankshaft bearing designed for reliable performance and long engine life.

Account limit note:

Caterpillar 3178766 Main Bearing

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