CATCooling System

4P5651 Tube As-Piston Cooling — Cat 320B

This is a piston cooling tube, a critical component within the engine's lubrication and cooling system. It is engineered to withstand high temperatures and pressures, ensuring efficient oil delivery for piston cooling and preventing thermal damage. A worn tube may exhibit leaks or reduced oil flow, leading to increased engine noise and potential overheating.

Tube As-Piston Cooling – Part No 4P5651 – CAT Spare Part
Part Specifications
BrandCAT
CategoryCooling System
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

Flush cooling system with distilled water before refilling. Use pre-mixed coolant — never plain water, which causes corrosion. Pressure-test system after any cooling repair. Check thermostat by immersing in hot water — should open at rated temperature.

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 Tube
MaterialSteel alloy
ApplicationEngine piston cooling circuit
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing piston cooling tube may include a slight increase in engine oil temperature or a subtle change in engine sound. If left unaddressed, the issue can progress to more significant oil pressure drops and potential piston damage. Continued operation with a compromised cooling tube risks severe engine internal component damage.

Installation Tip

Ensure all oil passages are thoroughly cleaned before installing the new tube to prevent immediate blockage. Avoid overtightening the tube fittings, as this can deform the sealing surfaces and cause leaks.

Service Note

Inspect the engine oil pump and oil filter for any signs of debris or wear when replacing the piston cooling tube.