CATEngine Parts

1S9875 Ring Kit (8 Ring) — Cat 120g 130g

This ring kit, containing eight piston rings, is essential for sealing the combustion chamber and controlling oil consumption within the engine cylinders. Manufactured to precise tolerances, it ensures optimal compression and prevents blow-by, unlike worn rings that allow combustion gases to escape and oil to enter the chamber. Symptoms of worn piston rings include increased oil consumption, blue smoke from the exhaust, and a noticeable loss of engine power and compression.

Ring Kit (8 Ring) – Part No 1S9875 – 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 and steel alloy
ApplicationEngine cylinder sealing
Service LifeReplace during engine overhaul or based on wear
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Increased oil consumption and visible blue smoke from the exhaust are common initial indicators of worn piston rings. If left unaddressed, this can lead to increased oil fouling of spark plugs and reduced engine performance. Continued operation with severely worn rings can result in excessive blow-by, potential engine overheating, and accelerated wear on other internal components.

Installation Tip

Carefully inspect the cylinder walls for scoring or wear before installing the new rings, as damaged liners will quickly wear out new rings. Ensure the ring gaps are properly staggered according to the manufacturer's specifications to prevent leakage.

Service Note

Inspect cylinder liners, pistons, and connecting rod bearings for wear when replacing the piston ring kit.