modelREC3858847
manufacturer
Weight:1,83 kg

Seawater pump for Volvo Penta 3858847

Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
24 months statutory warranty

Mechanically driven seawater pump 3858847 for marine cooling systems. Pumps raw/seawater in the cooling circuit of Volvo Penta and OMC inboard engines. With V-belt pulley, 1 ¼″ suction and 1″ pressure connection. OEM equivalent part to ensure coolant circulation.

Product overview

The 3858847 water pump is a pulley-driven seawater pump for marine engine cooling systems. It is used for the continuous supply of seawater to the heat exchanger or cooling circuit of Volvo Penta and compatible OMC engines. The pump version is designed for robust maritime use and replaces the original part numbers 3851623, 3852398, 3855778.

Technical parameters

  • Type: mechanically driven raw water pump

  • Connection dimension (inlet): 1 ¼″ (≈31.8 mm)

  • Connection dimension (outlet): 1″ (≈25.4 mm)

  • Drive: V-belt pulley (~6 ½″ diameter)

  • Main housing material: Bronze/metal alloy (depending on manufacturer's version)

  • Impeller: Neoprene impeller (replacement part often available)

  • Compatible series: Volvo Penta MD to NC series, various 4.3 L-8.2 L gasoline engines from 1990 series

Function in the cooling circuit

The pump draws in cooling water from the lake/river, conveys it via the impeller through the intake side and presses it into the heat exchanger or engine cooling channel. This regulates the operating temperature of the engine and prevents thermal overload.

Areas of application / compatibility

The 3858847 fits in marine applications with Volvo Penta gasoline V6 and V8 engines from sizes 4.3 L, 5.0 L, 5.7 L, 5.8 L to 8.2 L as well as in certain OMC installations with comparable pump connections.

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