CATEngine Parts

7C2888 Crown As- Piston — Cat Engine: 3406e

This is a piston crown assembly, the top part of the piston that forms the combustion chamber ceiling and is exposed to extreme heat and pressure. It is manufactured to meet stringent OEM material and dimensional specifications, offering superior resistance to wear and thermal stress compared to a damaged crown. Signs of failure include loss of compression, increased blow-by, and potential piston damage.

Crown As- Piston – Part No 7C2888 – 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 TypePiston Crown Assembly
MaterialForged Aluminum Alloy
ApplicationPiston Top
Service LifeReplace as part of engine overhaul
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A noticeable decrease in engine power and increased exhaust smoke, often accompanied by unusual combustion noises, are common initial symptoms. As the damage progresses, oil consumption will rise, and compression within the cylinder will be significantly reduced. Continued operation can lead to piston failure, potentially causing severe damage to the cylinder liner and connecting rod.

Installation Tip

Ensure the piston skirt and cylinder liner are properly lubricated before assembling the piston crown to the piston body to prevent galling. Verify the correct orientation of the crown relative to the piston pin bore to ensure proper combustion chamber shape.

Service Note

When replacing the piston crown, always install new piston rings and inspect the piston pin and connecting rod bushings for wear.