Outboard Thermostat fit Honda Marine BF 8 9.9 15 20 25 30 40 225hp 19300-ZW9-003

Outboard Thermostat for Honda Marine

This outboard thermostat for Honda Marine precisely controls coolant flow to maintain ideal operating temperatures across a wide range of Honda outboard engines. Designed as a direct replacement, this outboard thermostat ensures reliable cooling for models from 8hp to 225hp, supporting consistent performance and protection against overheating.

Overview

This outboard thermostat is a critical component that regulates engine temperature by opening and closing to control coolant circulation. It is engineered for Honda Marine outboards, ensuring efficient heat exchange and preventing overheating during extended operation. Whether for recreational or commercial use, this part maintains peak engine performance.

Built For Performance

• Precision-engineered valve opens at factory-set temperature for Honda Marine engines
• Corrosion-resistant materials withstand saltwater and freshwater environments
• Direct replacement for OEM part 19300-ZW9-003
• Maintains stable engine temperature under varying load conditions
• Rigorous quality testing ensures reliable sealing and operation

Fits These Machines

• for Honda Marine BF8
• for Honda Marine BF9.9
• for Honda Marine BF15
• for Honda Marine BF20
• for Honda Marine BF25
• for Honda Marine BF30
• for Honda Marine BF40
• for Honda Marine BF225

On-The-Job Use

• Replaces worn thermostats to prevent engine overheating during long runs
• Ideal for routine maintenance on Honda outboard engines in saltwater or freshwater
• Ensures quick warm-up and consistent temperature regulation on fishing boats
• Helps maintain fuel efficiency and reduce emissions in commercial applications

Specs At A Glance

Good To Know

Q: Does this thermostat fit all Honda outboards? A: It is designed for the listed BF models from 8hp to 225hp. Verify your engine's serial number before purchase.

Q: What is the recommended replacement interval? A: Replace if your engine overheats or if the thermostat fails to open during regular servicing.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.