CATEngine Parts

1306763 Piston As — Cat 416C 428C

This piston assembly is a critical component of the engine's combustion system, responsible for converting the pressure from expanding gases into rotational motion. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or damaged pistons that may exhibit scoring or loss of compression. Operators may notice a significant decrease in engine power, increased oil consumption, or rough idling when a piston assembly begins to fail.

Piston As – Part No 1306763 – 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
MaterialAluminum Alloy
ApplicationEngine Combustion Chamber
Service LifeReplace based on engine overhaul schedule
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing piston assembly include a noticeable loss of engine power and increased exhaust smoke. If ignored, the issue can progress to excessive oil consumption and rough engine operation. Continued operation with a compromised piston assembly risks cylinder wall damage and reduced engine efficiency.

Installation Tip

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

Service Note

Inspect cylinder liners, piston rings, and connecting rod bearings for wear during piston assembly replacement.