CATEngine Parts

2255437 Piston As — Cat 312D2 312D2 GC

This is a high-quality piston assembly designed to form a crucial part of the engine's combustion chamber, working with the cylinder liner and connecting rod to convert fuel energy into mechanical motion. Manufactured from durable cast iron or aluminum alloy to withstand extreme temperatures and pressures, it offers superior wear resistance compared to a scored or worn piston. Operators may observe increased oil consumption, blue exhaust smoke, or a noticeable loss of engine power when a piston begins to fail.

Piston As – Part No 2255437 – 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 iron or aluminum alloy
ApplicationEngine internal combustion
Service LifeReplace as part of engine overhaul or when worn
CompatibilityCTP aftermarket replacement
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Early signs of piston failure can include increased blow-by, indicated by a puffing sound from the crankcase breather. As wear progresses, oil consumption will rise, and the engine may produce blue exhaust smoke. Continued operation can lead to loss of compression, power reduction, and potential damage to the cylinder wall or crankshaft.

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; it should slide in smoothly with the correct ring compression.

Service Note

Always replace piston rings when installing new pistons, and inspect cylinder liners for wear or damage.