60°C (140°F) Thermostat for Suzuki 4-Stroke DF70–DF300 Applications — Replaces 17670-90J00 / 17670-90J01
60°C (140°F) Thermostat for Suzuki 4-Stroke DF70–DF300 Applications — Replaces 17670-90J00 / 17670-90J01 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
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60°C (140°F) Thermostat for Suzuki 4-Stroke DF70–DF300 Applications...
60°C (140°F) Thermostat for Suzuki 4-Stroke DF70–DF300 Applications — Replaces 17670-90J00 / 17670-90J01 is backordered and will ship as soon as it is back in stock.
Product Details
This 60°C (140°F) thermostat is an aftermarket replacement cooling-system thermostat for listed Suzuki 4-stroke DF outboard applications from 70 HP through 300 HP. It is identified in the Suzuki application data as the 60°C thermostat associated with OEM references 17670-90J00 and 17670-90J01.
The thermostat helps regulate engine operating temperature by opening at its rated temperature. Always confirm the exact model designation and year of your outboard before ordering, because similar horsepower ratings may use different thermostat applications.
- 60°C (140°F) operating temperature rating.
- Aftermarket replacement for specified Suzuki applications.
- Fits the listed Suzuki DF70A through DF300 applications shown below.
- Supplied with two thermostat seals as listed in the package contents.
Part Number References
These are manufacturer reference numbers associated with this thermostat application. They are provided for identification and comparison only.
| Brand | Part Number | Reference |
|---|---|---|
| Suzuki | 17670-90J00 | OEM reference |
| Suzuki | 17670-90J01 | OEM reference |
Suzuki Engine Compatibility
The following model and year applications are listed for the 60°C thermostat reference above. Model suffixes and year ranges are important; do not apply the fitment to a related model unless it is specifically listed.
| Brand | Model | Rated HP | Stroke | Years | Thermostat Reference |
|---|---|---|---|---|---|
| Suzuki | DF70A | 70 | 4-Stroke | 2009–2020 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF80A | 80 | 4-Stroke | 2009–2011 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF90 | 90 | 4-Stroke | 2001–2008 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF90A | 90 | 4-Stroke | 2009–2020 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF100 | 100 | 4-Stroke | 2009–2011 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF115 | 115 | 4-Stroke | 2001–2012 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF140 | 140 | 4-Stroke | 2002–2012 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF150 | 150 | 4-Stroke | 2006–2011 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF175 | 175 | 4-Stroke | 2006–2011 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF200 | 200 | 4-Stroke | 2004–2014 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF225 | 225 | 4-Stroke | 2004–2020 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF250 | 250 | 4-Stroke | 2004–2020 | 60°C / 17670-90J00, 17670-90J01 |
| Suzuki | DF300 | 300 | 4-Stroke | 2007–2011 | 60°C / 17670-90J00, 17670-90J01 |
Technical Specifications
- Product Type
- Engine thermostat
- Temperature Rating
- 60°C (140°F)
- Application
- Listed Suzuki 4-stroke outboard engines
- Replacement Type
- Aftermarket replacement
- Housing Material
- Metal
- Housing Color
- Silver/metallic
- Approximate Dimensions
- 55 × 55 × 40 mm
- Approximate Weight
- 0.11 kg (0.25 lb)
What's in the Box
- 1 × 60°C thermostat
- 2 × thermostat seals
Installation Notes
- Disconnect the battery and allow the engine to cool completely before beginning work.
- Locate the thermostat housing on the engine block or cylinder head.
- Remove the housing cover and note the position of any bolts of different lengths.
- Remove the old thermostat and seal, then clean the mating surfaces thoroughly.
- Install the new thermostat in the correct orientation and position the new seals.
- Reinstall the housing cover and tighten the fasteners to the engine manufacturer's specified torque.
- Run the engine after installation and check for leaks and correct operating temperature.
Troubleshooting & FAQ
How do I confirm fitment for my engine?
Match the complete engine model, suffix, horsepower, and year to the Suzuki compatibility table above. Do not rely on horsepower alone. You may also compare the thermostat reference numbers 17670-90J00 and 17670-90J01 with your service information or removed part.
What are common symptoms of a failing thermostat?
Symptoms may include overheating, unusually low operating temperature, temperature fluctuations, or coolant leakage around the thermostat housing.
At what temperature does this thermostat begin to open?
This thermostat is rated at 60°C (140°F). The exact opening behavior and temperature-control requirements should be checked against the service information for your specific engine.
Are seals included?
Yes. This package includes two thermostat seals in addition to the thermostat.
Is this an OEM thermostat?
No. This is an aftermarket replacement intended for the listed applications and reference numbers. It is not a Suzuki-branded OEM component.
How often should a marine thermostat be replaced?
There is no universal replacement interval for every engine. Inspect the thermostat during cooling-system maintenance and replace it if it is stuck, corroded, damaged, or not maintaining the specified operating temperature.
Shipping speed and cost?
Typical transit is 5–15 days depending on destination and service selected. Available shipping options and costs are shown at checkout.
Warranty and returns?
This product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the item is unused and in its original condition. Contact support for instructions.
Safety & Important Information
- Verify the complete model, suffix, year, and existing part reference before ordering.
- Compare the replacement thermostat and seals with the original parts before installation.
- Never work on a hot engine or pressurized cooling system.
- Professional installation is recommended if you are unfamiliar with outboard cooling-system service.
About Sea Sierra
- Pro-Grade Standards — Marine replacement parts selected for dependable fit and function.
- Fast Global Fulfillment — Free standard delivery to most regions, with delivery options shown at checkout.
- Manufacturer-Direct Value — Competitive pricing without compromising practical replacement quality.
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