Genuine Tohatsu Thermostat BFT60 BFT75 BFT90 HZW9-19300-003
HZW9-19300-003
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 4 items left
- Backordered, shipping soon
Genuine Tohatsu 60°C Thermostat for BFT Outboards
Genuine Tohatsu thermostat assembly for selected Honda-based BFT four-stroke outboards. It regulates coolant flow as the engine warms, helping the powerhead reach and maintain its designed operating temperature.
Verified Tohatsu Compatibility
- BFT60A: 60 HP four-stroke — selected models including 2018–2019 catalogues
- BFTW60A Power Thrust: 60 HP four-stroke — selected models including 2018–2019 catalogues
- BFT75AK1: 75 HP four-stroke — selected models including 2018–2019 catalogues
- BFT90AK1: 90 HP four-stroke — selected models including 2018–2019 catalogues
Not for MFS15A–MFS30A: the previous small-engine compatibility was incorrect. Confirm the BFT model code and serial number before ordering.
Technical Specifications
| Part type | Engine cooling thermostat assembly |
| Nominal opening temperature | 60°C / 140°F |
| Tohatsu OEM reference | HZW9-19300-003 |
| Honda OEM cross-reference | 19300-ZW9-003 |
| Engine type | BFT four-stroke outboard |
| Quantity supplied | One thermostat assembly |
Seal not included: the thermostat-cover O-ring is catalogued separately as HZW9-19317-000. Inspect it during service and replace it when required.
Check Before Ordering & Installation
- Read the complete BFT model code and serial number from the outboard identification plate.
- Confirm HZW9-19300-003 in the exact engine parts diagram.
- Check the thermostat-cover O-ring and order it separately if needed.
- Install only on a cold engine, following the factory service procedure and torque values.
Cooling-system faults can have several causes. A blocked water intake, damaged impeller or restricted passage should also be checked if the engine overheats or runs too cold.
Frequently Asked Questions
Does this fit a Tohatsu MFS20 or MFS30?
No. The former MFS15A–MFS30A compatibility was incorrect; this thermostat is for the listed BFT families.
Is the thermostat-cover O-ring included?
No. The O-ring is a separate service item and should be inspected or replaced during installation.
What temperature is the thermostat rated for?
The nominal opening specification is 60°C / 140°F.
Can I identify fitment by horsepower alone?
No. Use the full BFT model code, suffix, year and serial number because different engine families at similar horsepower can use different cooling parts.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
