CATEngine Parts

2291632 Piston Ring Group — Cat 785D 789C

This is a Piston Ring Group, essential for sealing the combustion chamber and controlling oil consumption within the engine. It ensures efficient transfer of power by maintaining compression and preventing blow-by. A worn or broken piston ring group will result in noticeable power loss, excessive smoke, and increased oil consumption.

Piston Ring Group – Part No 2291632 – 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 Ring Group
MaterialHigh-grade cast iron and steel alloys
ApplicationEngine cylinder sealing
Service LifeReplace during engine overhaul or when diagnosed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first sign of a failing piston ring group is often increased blue smoke from the exhaust, especially under load. If ignored, this will progress to a noticeable loss of engine power and rough running. Continued operation risks cylinder wall damage and potential engine seizure due to excessive heat and lubrication issues.

Installation Tip

Ensure the cylinder walls are clean and free of any scoring before installing new rings. Never force rings into the cylinder bore; they should be carefully seated using the correct ring expander tool.

Service Note

Inspect the cylinder walls for wear and the pistons for any signs of damage or carbon buildup when replacing the piston ring group.