CATBearing & Bushing

4687770 Bearing — Cat

This is a connecting rod bearing designed to provide a low-friction surface between the crankshaft and connecting rod in CAT engines. It is manufactured to meet stringent OEM material and dimensional specifications, ensuring optimal performance and durability compared to a worn bearing which can exhibit scoring or excessive clearance. Operators may notice increased engine noise, particularly a knocking sound, or a drop in oil pressure when this bearing begins to fail.

Bearing – Part No 4687770 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeConnecting Rod Bearing
MaterialSteel-backed babbitt alloy
ApplicationEngine connecting rod assembly
Service LifeReplace based on engine overhaul schedule or inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing connecting rod bearing include a distinct knocking or tapping sound from the engine, especially under load. If ignored, the bearing can wear rapidly, leading to increased clearance, reduced oil pressure, and potential damage to the crankshaft. Continued operation with a failing bearing risks severe internal engine damage.

Installation Tip

Ensure the crankshaft journal is perfectly clean and free of any debris before installation. Avoid using abrasive materials to clean the journal, as this can damage the new bearing surface.

Service Note

Inspect the crankshaft journal for any signs of scoring, wear, or discoloration, and check the connecting rod for straightness.