Description
Suzuki 17670-98L20 140°F / 60°C Thermostat for DF300B and DF350A Outboards
The Suzuki 17670-98L20 thermostat is a genuine Suzuki cooling system thermostat for select DF300B and DF350A outboard applications. Use this thermostat where Suzuki part number 17670-98L20 is specified.
Applications
- Make: Suzuki
- Engine style: Outboard
- Horsepower range: 300-350 HP
- Model menu: DF300B/350A
- Temperature rating: 140°F / 60°C
Key Details
- Suzuki part number: 17670-98L20
- Product: Thermostats
- Specifics: 140°F/60°C Thermostats
- Sold as: One thermostat
Service Notes
A properly operating thermostat helps regulate outboard engine temperature and cooling system performance. Replace during cooling system service or when diagnostics indicate thermostat failure.
Frequently Asked Questions
What does Suzuki 17670-98L20 fit?
It is listed for select DF300B and DF350A outboard cooling system applications where this part number is specified.
What temperature is this thermostat?
This thermostat is rated at 140°F / 60°C.
Is a gasket included?
This listing is for the thermostat. Related gaskets or seals should be verified separately by engine model and part number.
Fitment Reminder
Please verify fitment by Suzuki part number, engine model, model year, and service information before ordering.

