CATEngine Parts

1337098lK Crown As- Piston — Cat

This crown as-piston is a precision-engineered component designed to form the top of the combustion chamber within an engine cylinder, playing a vital role in the compression and power stroke. Manufactured to exacting tolerances, it ensures optimal sealing and heat transfer, unlike a damaged piston with scoring or cracks that lead to compression loss. Operators may experience a noticeable loss of engine power, increased oil consumption, or unusual knocking sounds when a piston is failing.

Engine Component – Part No 1337098lK – 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
ApplicationEngine Cylinder Head
Service LifeReplace based on engine overhaul schedule or diagnostic findings
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing piston crown include a decrease in engine power and an increase in exhaust smoke. If the issue progresses, the piston may develop cracks or scoring, leading to significant compression loss and audible engine knocking. Continued operation with a damaged piston crown can result in severe engine damage, including cylinder wall scoring and potential connecting rod failure.

Installation Tip

Ensure the cylinder bore is thoroughly cleaned and inspected for any imperfections before installing the new piston crown. Never reuse old piston rings; always install new ones with the piston.

Service Note

When replacing a piston crown, it is essential to also replace the piston rings, connecting rod bearings, and inspect the cylinder liners.