CATCooling System

7s0544 Spider Assem — Cat 225 229

This spider assembly is a key component within the engine's cooling system, facilitating the controlled circulation of coolant. It ensures that coolant reaches all necessary engine passages for effective heat dissipation, thereby preventing overheating and maintaining optimal engine performance. Operators may observe inconsistent engine temperatures or a gradual loss of cooling efficiency as this part begins to wear.

Spider Assem – Part No 7s0544 – 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 TypeCooling System Spider Assembly
MaterialCast Iron
ApplicationEngine Cooling System
Service LifeReplace every 4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial signs of a failing spider assembly include fluctuating engine coolant temperatures or a noticeable increase in the engine's operating temperature. If the issue is not resolved, the engine may begin to lose power due to inefficient cooling. Continued operation with a compromised spider assembly increases the risk of overheating, which can lead to severe engine damage.

Installation Tip

Before installation, ensure all coolant passages within the engine block are completely free of scale and debris. Do not apply excessive force when tightening the assembly bolts, as this can damage the housing or the engine block.

Service Note

Inspect the water pump and thermostat when replacing the spider assembly.