VolvoEngine Parts

3855991 — Water Pump 387447 18-3577 18-3574 3855991 For Volvo Penta Engine 7.4 454 8.2 502

This water pump is a critical component of the engine's cooling system, circulating coolant to regulate operating temperature. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or failing units. Operators may notice engine overheating, coolant leaks from the pump housing, or unusual noises from the front of the engine when this part begins to fail.

Water Pump 387447 18-3577 18-3574 3855991 For Volvo Penta Engine 7.4 454 8.2 502 – Part No 3855991 – Volvo Spare Part
Part Specifications
BrandVolvo
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 TypeWater Pump
MaterialCast iron and rubber
ApplicationEngine cooling system
Service LifeReplace every 2,000 hrs or 2 years
CompatibilityVolvo Penta 7.4, 454, 8.2, 502 engines
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing water pump is often a persistent engine overheating warning light. If ignored, the pump will eventually cease to circulate coolant, leading to a rapid rise in engine temperature and potential damage to engine components. Continued operation without a functioning water pump can result in severe internal engine damage.

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 distort the pump housing and cause leaks.

Service Note

Inspect the engine drive belt and tensioner for wear and proper function when replacing the water pump.