CATEngine Parts

263-7531 Water Pump — Cat Marine Engine C4 4

This is a direct replacement water pump designed to circulate coolant through the engine block and radiator, maintaining optimal operating temperature. It is manufactured to meet rigorous OEM specifications for flow rate and durability, ensuring reliable performance unlike a worn pump with a failing bearing or seal. Observable symptoms of a failing water pump include engine overheating, coolant leaks from the pump housing, or a whining noise from the pump bearing.

Water Pump – Part No 263-7531 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeWater Pump
MaterialCast iron and steel components with rubber seals
ApplicationEngine cooling system
Service LifeReplace as needed based on coolant leaks or overheating
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing water pump is often a visible coolant leak from the weep hole or pulley shaft, or the engine temperature gauge rising above normal. If ignored, the pump can seize or the impeller can fail, leading to rapid engine overheating and potential damage. Continued operation without proper coolant circulation risks severe engine damage due to excessive heat.

Installation Tip

Ensure the mounting surface on the engine block is perfectly clean and free of old gasket material before installing the new pump; do not overtighten the mounting bolts, as this can warp the pump housing.

Service Note

Inspect the condition of the drive belt and all coolant hoses for cracks or swelling when replacing the water pump.