CATEngine Parts

1352837 Crown As- Piston — Cat Engine: 3406e

This is a CTP aftermarket replacement crown piston for Caterpillar engines, designed to be a direct fit for the original component. It is manufactured to meet stringent quality standards, ensuring performance comparable to a new OEM part, unlike a worn piston which can cause reduced compression and power. Operators may notice a significant loss of engine power, increased fuel consumption, or abnormal engine noise when this component fails.

Crown As- Piston – Part No 1352837 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeCrown Piston
MaterialCast Aluminum Alloy
ApplicationEngine Cylinder Assembly
Service LifeReplace as needed based on engine overhaul schedule
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing crown piston may initially present as a subtle decrease in engine power or a slight increase in exhaust smoke. If left unaddressed, this can progress to noticeable knocking sounds, excessive oil consumption, and potential cylinder scoring. Continued operation risks severe engine damage due to loss of compression and increased internal friction.

Installation Tip

Ensure the cylinder bore is thoroughly cleaned and free of any debris before attempting installation. Avoid forcing the piston into the cylinder, as this can damage the piston skirt or the cylinder wall.

Service Note

Always inspect the cylinder liner and piston rings for wear or damage when replacing a crown piston.