CATEngine Parts

2526438 4 Pieces Inlet Valve Seal — Cat

These inlet valve seals are critical components that prevent oil from entering the combustion chamber through the valve guides. Manufactured from durable, heat-resistant materials, they provide a tight seal that is superior to worn or brittle seals that allow oil passage. Operators may observe blue smoke from the exhaust, especially on startup or deceleration, and a gradual increase in oil consumption if these seals fail.

4 Pieces Inlet Valve Seal – Part No 2526438 – 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 TypeInlet Valve Seal
MaterialNBR rubber or similar high-temp polymer
ApplicationEngine valve train
Service LifeReplace as part of engine overhaul or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of failing inlet valve seals is often intermittent blue smoke from the exhaust, particularly after the engine has been idling or shut off. If ignored, oil consumption will increase, leading to more frequent exhaust smoke and potential fouling of spark plugs or emissions system components. Continued operation with leaking seals can lead to excessive carbon buildup in the combustion chamber and on valves.

Installation Tip

Ensure the valve spring compressor tool is correctly seated to avoid damaging the valve stem or seal bore. Do not reuse old seals, as they will not provide an adequate seal.

Service Note

Inspect valve guides for wear and check valve springs for proper tension when replacing inlet valve seals.