CATEngine Parts

1979328PK Crown As- Piston — Cat 320C 320D

This piston is a critical component within the engine's combustion chamber, forming the moving base of the cylinder that converts fuel energy into mechanical motion. It is manufactured to meet stringent OEM material and dimensional standards, ensuring optimal sealing and heat transfer compared to a worn or damaged piston. Operators may notice a loss of engine power, increased oil consumption, or unusual engine noises when a piston begins to fail.

Engine Component – Part No 1979328PK – 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
MaterialCast aluminum alloy
ApplicationEngine cylinder
Service LifeReplace based on engine overhaul schedule
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of piston failure can include a noticeable decrease in engine power and performance. If ignored, the problem may progress to increased exhaust smoke and audible knocking sounds from the engine. Continued operation with a failing piston risks severe internal engine damage and potential downtime.

Installation Tip

Ensure the cylinder bore is thoroughly cleaned and inspected for any scoring before installing the new piston. Avoid forcing the piston into the cylinder bore, as this can damage the piston skirt or the cylinder walls.

Service Note

Inspect cylinder liners for wear and honing pattern, and replace piston rings and connecting rod bearings when replacing this piston.