CATUndercarriage

1225178 Piston As — Cat 320 L 320n

This piston assembly is a core component of the engine's combustion system, responsible for converting the pressure from expanding gases into mechanical force. Constructed from durable, heat-resistant materials, it ensures efficient power transfer and longevity, unlike a worn piston with scoring or deformation. Operators may observe a decrease in engine power, increased oil consumption, blue exhaust smoke, or rough engine running when this assembly is compromised.

Piston As – Part No 1225178 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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
MaterialAluminum Alloy
ApplicationInternal Combustion Engine
Service LifeReplace during engine overhaul or if damaged
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early indications of a faulty piston assembly include a noticeable reduction in engine power and an increase in exhaust smoke, particularly blue smoke indicating oil burning. If the issue progresses, the engine may begin to run rough, misfire, or exhibit excessive oil consumption. A severely damaged piston can lead to catastrophic engine failure by scoring the cylinder wall or impacting other internal components.

Installation Tip

Ensure the cylinder bore is clean and properly honed before installing the new piston assembly to prevent premature wear. Always install new piston rings and ensure they are correctly oriented and staggered according to specifications.

Service Note

Inspect cylinder liners for wear or scoring, check connecting rod bearings, and replace piston rings.