CATBearing & Bushing

9N6431 Piston G-Std — Cat 613B Engine: 3208

This is a CAT Piston, a critical component within the engine's combustion chamber responsible for converting pressure into mechanical force. It is manufactured to precise OEM standards, ensuring optimal sealing, heat transfer, and durability compared to a worn or damaged piston. Operators may notice a loss of engine power, increased exhaust smoke, or rough engine running when this piston is failing.

Piston G-Std – Part No 9N6431 – 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 TypePiston
MaterialAluminum alloy
ApplicationEngine combustion chamber
Service LifeReplace during engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing piston may initially cause a noticeable reduction in engine power and increased blue or black exhaust smoke. If operation continues, it can lead to increased oil consumption, cylinder blow-by, and potential damage to the cylinder wall or connecting rod. This can result in severe engine damage requiring a major overhaul.

Installation Tip

Ensure the cylinder bore is perfectly clean and free of any scratches or debris before installing the piston. Always install new piston rings and ensure they are correctly oriented and gaped according to specifications.

Service Note

Inspect the cylinder liner for wear, honing pattern, and any signs of damage, and check the connecting rod for straightness and bearing condition.