CATEngine Parts

276-7222 Piston Cooling Nozzle — Cat C11 C12

This piston cooling nozzle is an engine component responsible for spraying lubricating oil onto the underside of the pistons and cylinder walls. Its primary function is to dissipate heat from the piston crown, preventing overheating and potential damage, while also ensuring adequate lubrication. A clogged or misaligned nozzle can lead to increased piston temperatures, scoring of cylinder walls, and premature engine wear, which operators might observe as increased oil consumption, abnormal engine noise, or a loss of engine power.

Piston Cooling Nozzle – Part No 276-7222 – 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 Cooling Nozzle
MaterialHardened steel
ApplicationEngine lubrication and cooling system
Service LifeReplace as needed based on inspection or engine diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of a faulty piston cooling nozzle may include subtle increases in engine oil temperature or slight audible changes in engine operation. If ignored, this can progress to noticeable piston slap, increased oil consumption, and potential cylinder wall scoring. The ultimate consequence of unaddressed nozzle failure is severe internal engine damage, leading to costly repairs and extended downtime.

Installation Tip

Ensure the engine block's oil passages leading to the nozzle are thoroughly cleaned to prevent immediate clogging of the new nozzle. Do not overtighten the nozzle, as this can strip the threads in the engine block.

Service Note

Inspect the connecting oil passages and the oil pump for proper function when replacing piston cooling nozzles.