CATEngine Parts

2889942 Piston As-(Os 0.50Mm) — Cat 414e 416D

This oversized (0.50mm) piston assembly is a key component within the engine's combustion chamber, responsible for converting the pressure from burning fuel into mechanical motion. Manufactured from high-grade aluminum alloy with precise tolerances, it offers superior heat dissipation and wear resistance over a worn piston. Operators may observe a loss of engine power, increased oil consumption, blue exhaust smoke, or knocking sounds from the engine.

Piston As-(Os 0.50Mm) – Part No 2889942 – 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 (Oversize)
MaterialAluminum Alloy
ApplicationEngine combustion chamber
Service LifeReplace during engine overhaul
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of a failing piston include a subtle decrease in engine power and slightly increased oil consumption. As wear progresses, noticeable blue smoke from the exhaust and audible knocking noises may develop. Continued operation with a damaged piston risks cylinder wall scoring and potential engine seizure.

Installation Tip

Ensure the cylinder bore is perfectly clean and honed to the correct finish before installing the piston. Never reuse old piston rings, as they will not seal properly.

Service Note

Always replace piston rings, connecting rod bearings, and inspect cylinder liners when installing a new piston assembly.