CATEngine Parts

1032858 Ring-Set (Os=.25Mm) — Cat 315 315B

This Ring-Set (Os=.25Mm) is a crucial component for maintaining proper compression and sealing within the engine cylinders, designed for an oversized bore of 0.25mm. Manufactured with high-quality materials and precise tolerances, these rings ensure optimal engine performance and oil control, outperforming worn or damaged original rings. Engine symptoms indicating the need for this set include excessive oil consumption, blue smoke from the exhaust, low compression readings, and rough idling.

Ring-Set (Os=.25Mm) – Part No 1032858 – 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 Set
MaterialCast Iron, Chrome-plated
ApplicationEngine cylinder bore
Service LifeEngine rebuild interval
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Excessive oil consumption and blue smoke from the exhaust are common initial signs of worn piston rings. If left unaddressed, this will lead to a significant loss of engine compression and power, accompanied by increased oil fouling of spark plugs or glow plugs. Continued operation risks cylinder wall damage and potential engine seizure.

Installation Tip

Ensure the cylinder walls are properly honed and cleaned, and that the piston ring gaps are staggered correctly before installation. Never force rings into the cylinder bore; use a proper ring expander tool.

Service Note

Inspect pistons for cracks or damage, and check cylinder liners for wear or scoring when replacing piston rings.