CATEngine Parts

3149959 Piston — Cat 256C 262C

This piston is a critical component within the engine's combustion chamber, responsible for converting the pressure from burning fuel into mechanical motion. Manufactured from high-strength alloy, it meets or exceeds OEM specifications for durability and heat resistance, outperforming worn pistons that may exhibit scoring or reduced compression. Operators might observe a noticeable decrease in engine power, increased oil consumption, or unusual knocking sounds when a piston is compromised.

Piston – Part No 3149959 – 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 combustion chamber
Service LifeReplace as part of engine overhaul
CompatibilityCAT specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early indicators of piston failure include a persistent loss of engine power and a noticeable increase in exhaust smoke. If ignored, the engine may begin to consume excessive oil, leading to fouled spark plugs or emissions system issues. Continued operation risks severe internal engine damage, potentially requiring a complete engine rebuild.

Installation Tip

Carefully inspect the cylinder bore for any scoring or imperfections before installing the new piston. Ensure the piston rings are correctly seated in their grooves and oriented as per the service manual instructions.

Service Note

When replacing pistons, it is crucial to inspect cylinder liners, connecting rod bearings, and crankshaft for wear.