CATEngine Parts

1979297lK Crown As- Piston — Cat

This is a Crown As- Piston, a key component of the piston assembly in an engine, forming the top surface that receives combustion pressure. It is engineered with specific material properties and cooling channels to withstand extreme temperatures and pressures, ensuring efficient power transfer unlike a damaged or warped piston crown. Operators may notice a significant loss of engine power, increased oil consumption, or unusual engine noises like knocking if this piston crown fails.

Engine Component – Part No 1979297lK – 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
MaterialAluminum Alloy or Forged Steel
ApplicationInternal Combustion Engine Piston
Service LifeReplace as needed based on engine diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A primary symptom of a failing piston crown is a noticeable drop in engine power and performance. This can be accompanied by increased oil consumption as oil bypasses the damaged crown and enters the combustion chamber, or audible knocking sounds from the engine. If left unaddressed, continued operation can lead to severe internal engine damage, including potential cylinder wall scoring or connecting rod failure.

Installation Tip

Ensure the piston skirt and cylinder wall are meticulously clean and lubricated before inserting the piston assembly. Avoid dropping the piston or striking it, as this can easily damage the crown or skirt.

Service Note

When replacing pistons or piston crowns, it is essential to also inspect the cylinder liners for wear or damage and consider replacing piston rings.