Thermostats

Honda thermostats for outboard engines

Honda thermostats ensure the correct operating temperature in the outboard engine. The component controls the cooling water flow in the engine and prevents both overheating and excessively low engine temperatures. In this category, you will find suitable thermostats for numerous Honda BF outboard models - ideal for maintenance, repair or the replacement of worn components in the cooling system.

Thermostat 50º-60ºC
Recmar
Thermostat 50º-60ºC
article nr.REC6AH-12411-00

Suitable for the following models: WAHOO 15/20

22,10 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Thermostat 15-07000031
Parsun
Thermostat 15-07000031
article nr.PAF15-07000031

Compatible with the following models: MURENA EFI 40XSR/ 70

28,63 EUR / Piece
incl. 19% VAT
Derzeit nicht verfügbar **
24 months statutory warranty
Thermostat 6E5-12411-30 Thermostat 6E5-12411-30
Recmar
Thermostat 6E5-12411-30
article nr.REC6E5-12411-30

Suitable for the following models: BFT80AK1

26,22 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Thermostat 19300-ZV5-043
Recmar
Thermostat 19300-ZV5-043
article nr.REC19300-ZV5-043

Suitable for the following models: BFT115A BFT130A BFT150A

24,07 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Thermostat 19300-881-761
Recmar
Thermostat 19300-881-761
article nr.REC19300-881-761

Suitable for the following models: BF9,9BX

40,63 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
Thermostat 67F-12411-01
Recmar
Thermostat 67F-12411-01
article nr.REC67F-12411-01

Suitable for the following models: KILLER WHALE EFI 150/ 150XSR

28,58 EUR / Piece
incl. 19% VAT
Lieferung Wed 05. Aug - Mon 10. Aug 2026 **
24 months statutory warranty
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Thermostats for Honda outboards - precise temperature control

The thermostat is an important component of the cooling system of an outboard engine. Its task is to regulate the flow of cooling water in the engine and maintain the optimum operating temperature. This prevents the engine from running too hot or too cold.

In Honda outboard engines, the thermostat works together with the water pump, which circulates cooling water through the engine. As soon as the engine reaches a certain temperature, the thermostat opens and allows cooling water to flow through the system to stabilize the temperature.

How an outboard thermostat works

Thermostats work depending on the temperature. As long as the engine is cold, the valve remains closed so that the engine reaches its optimum operating temperature more quickly. If the temperature rises, the thermostat opens and allows the cooling water to flow through the engine.

On many outboard engines - including Honda BF models - the opening temperature is typically in the range of around 60 °C (140 °F) to ensure that the engine operates efficiently and stably.

Symptoms of a defective thermostat

A faulty thermostat can cause various problems. If it remains closed, the engine can overheat very quickly. If it remains open, on the other hand, the engine will no longer reach its optimum operating temperature, which can lead to inefficient operation.

Typical signs of a defective thermostat:

  • Overheating warning on the engine

  • Fluctuating engine temperature

  • Irregular cooling water flow

  • Engine does not reach optimum operating temperature

Thermostats for Honda BF outboards at Marine-Discount24

At Marine-Discount24 you will find thermostats for various Honda outboard engines, including numerous models from the BF series. The spare parts are tailored to different engine outputs and model years and are suitable for maintenance or repair of the cooling system.

A functioning thermostat ensures that your Honda outboard works reliably and that the engine temperature remains in the optimum range.