CATEngine Parts

1850109 Kit-Piston Rings — Cat 416D 424D

This is a CAT Kit-Piston Rings, a set of essential components that seal the combustion chamber within the engine cylinders, manufactured to meet strict OEM quality standards. These rings prevent combustion gases from escaping and oil from entering the combustion chamber, unlike worn rings which lead to increased oil consumption and reduced engine power. Operators may notice blue smoke from the exhaust, a decrease in engine performance, or increased oil consumption when piston rings are worn or damaged.

Kit-Piston Rings – Part No 1850109 – 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 Kit
MaterialCast Iron with Chrome Plating
ApplicationEngine Cylinder
Service LifeReplace during engine overhaul or if worn, typically 8,000-10,000 hours
CompatibilityCTP aftermarket replacement
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The most common symptom of worn piston rings is excessive blue or grey smoke from the exhaust, especially during acceleration, indicating oil burning in the combustion chamber. Engine performance will gradually decrease, accompanied by a noticeable drop in oil pressure and an increase in oil consumption. Prolonged operation with worn rings can lead to cylinder wall damage, carbon buildup on pistons and valves, and eventual engine failure.

Installation Tip

Always check cylinder bore for straightness and wear before installing new rings; out-of-round or tapered bores will cause premature ring failure. Ensure the ring gaps are staggered correctly around the piston to maintain a proper seal.

Service Note

When replacing piston rings, it is essential to inspect the pistons for damage and hone the cylinder walls to ensure proper seating of the new rings.