GASKET BOMBA AGUA 21415427

Function and technical context

This water pump gasket is an original Volvo Penta factory replacement (reference 21415427) that guarantees a hermetic seal between the water pump and the engine block or cooling manifold, preventing any coolant leak into the cooling circuit. It works within the water cooling system of the marine diesel engine, a critical system that regulates the operating temperature of the assembly and protects internal components from the heat generated by combustion. Manufactured with materials approved by Volvo Penta, this original part ensures an exact dimensional tolerance that generic gaskets cannot guarantee, which is especially relevant in continuous duty engines such as those for marine propulsion or electrical generation. A failure in this element causes loss of coolant, a drop in pressure in the cooling circuit and, ultimately, overheating of the engine with the risk of serious damage to the cylinder head, head gaskets and valve train components. This genuine replacement part covers an exceptionally wide range of Volvo Penta engines, from compact D2 and D3 series to D16C, TAD and TWD big blocks for industrial and professional marine use.

When to replace this part?

The most common symptoms of deterioration of a water pump seal are the appearance of traces of coolant or lime deposits in the area where the pump joins, a progressive drop in the coolant level without apparent cause and, in more advanced stages, the presence of steam or persistent humidity in the engine compartment during or after navigation. It is recommended to visually inspect this gasket during each seasonal maintenance and replace it whenever the water pump is disassembled to check the impeller or bearing, since reusing a dismantled gasket compromises the tightness of the system. Replacing this gasket preventively during scheduled maintenance operations is significantly more economical than facing a breakdown due to overheating while sailing, which can lead to irreversible damage to the engine and costly interventions at the dock.

Compatible Volvo Engines

Equivalent manufacturer part numbers