CATEngine Parts

2553069 Piston As — Cat 320C 320D

This piston assembly is a critical component of the internal combustion engine, responsible for converting the thermal energy of combustion into mechanical force within the cylinder. It is manufactured to meet stringent quality standards, ensuring superior durability and performance compared to worn or damaged pistons that exhibit reduced compression and increased oil consumption. Operators may notice a loss of engine power, rough idling, or excessive smoke from the exhaust when this part begins to fail.

Piston As – Part No 2553069 – 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 Assembly
MaterialCast Aluminum Alloy
ApplicationEngine Cylinder
Service LifeReplace based on engine overhaul schedule or performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing piston assembly include a noticeable decrease in engine power and increased fuel consumption. If left unaddressed, the issue can progress to persistent rough idling, excessive exhaust smoke, and potential cylinder scoring. Continued operation with a compromised piston assembly risks severe engine damage and costly repairs.

Installation Tip

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

Service Note

Inspect cylinder liners, piston rings, and connecting rod bearings for wear or damage when replacing the piston assembly.