Thermostat (60°C) – Fits Suzuki Outboard 8-30 HP (Replaces 17670-94J00, 17670-94J01, 17670-94J02, 5036226)
Thermostat (60°C) – Fits Suzuki Outboard 8-30 HP (Replaces 17670-94J00, 17670-94J01, 17670-94J02, 5036226) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Free standard shipping on all orders under 1 KG
Thermostat (60°C) – Fits Suzuki Outboard 8-30 HP (Replaces 17670-94...
Product Details
This Thermostat (60°C) – Fits Suzuki Outboard DF8A, DF9.9, DF15, DF20, DF25, DF30A is an essential component for regulating engine temperature on Suzuki Outboard 8–30 HP, 4-Stroke, 2005–2012 models, including the DF8A, DF9.9, DF15, DF20, DF25, and DF30A series engines.
It is designed as a direct interchange for Suzuki part numbers 17670-94J00, 17670-94J01, 17670-94J02, and Johnson/Evinrude/OMC 5036226.
- Engineered for direct OEM-replacement fit.
- Maintains a precise operating temperature of 60°C (140°F).
- Built for marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Suzuki | 17670-94J00 | Superseded by 17670-94J01, then 17670-94J02. |
| Suzuki | 17670-94J01 | Superseded by 17670-94J02. |
| Suzuki | 17670-94J02 | Current replacement part. |
| Johnson/Evinrude/OMC | 5036226 | Interchangeable part. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Suzuki models, this thermostat fits a range of 4-stroke engines from 8 HP to 30 HP manufactured between 2004 and 2011.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Suzuki | DF8A | 8 | 4-Stroke | 2010–2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF9.9 | 9.9 | 4-Stroke | 2004–2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF9.9A | 9.9 | 4-Stroke | 2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF15 | 15 | 4-Stroke | 2004–2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF20 | 20 | 4-Stroke | 2006–2010 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF25 | 25 | 4-Stroke | 2006–2010 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF25A | 25 | 4-Stroke | 2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
| Suzuki | DF30A | 30 | 4-Stroke | 2011 | 17670-94J02 | Superseded 17670-94J00, 17670-94J01 |
Technical Specs
- Product Type
- Marine Engine Thermostat
- Installation
- Direct OEM Replacement
- Operating Temperature
- 60°C (140°F)
- Housing Color
- Metal/Silver
- Dimensions
- 3 × 3 × 3 in
- Weight
- 0.5 lbs (0.23 kg)
What’s in the Box
- 1 x Thermostat (17670-94J02)
Installation Notes
- Ensure the engine is completely cool and disconnected from the battery.
- Drain the engine coolant to a level below the thermostat housing.
- Locate and carefully remove the bolts securing the thermostat housing cover.
- Note the orientation of the old thermostat before removing it from the housing.
- Thoroughly clean the mating surfaces of the housing and its cover to remove old gasket material and corrosion.
- Install the new thermostat, ensuring it is seated in the correct orientation.
- Place a new gasket (if required, sold separately) onto the housing before reinstalling the cover.
- Tighten the housing cover bolts evenly to the manufacturer-specified torque setting.
- Refill the cooling system with the recommended coolant.
- Start the engine and run it at idle, carefully checking for any leaks around the thermostat housing. Allow the engine to reach operating temperature to confirm the thermostat is functioning correctly.
Troubleshooting & FAQ
How do I know if my thermostat is failing?
Common signs of a faulty thermostat include engine overheating, the engine running too cold and not reaching its proper operating temperature, erratic temperature gauge readings, or visible coolant leaks around the thermostat housing.
What is the correct operating temperature for this part?
This thermostat is rated to begin opening at 60°C (140°F) to circulate coolant and regulate the engine's operating temperature.
Will this fit my engine if my old part is a 17670-94J00 or 17670-94J01?
Yes. This thermostat, 17670-94J02, is the current OEM-specified replacement and directly supersedes the older 17670-94J00 and 17670-94J01 part numbers for all compatible engine models listed.
Should I replace the thermostat gasket at the same time?
Yes, it is highly recommended to replace the thermostat housing gasket whenever the thermostat is replaced. This helps ensure a proper, leak-free seal. Gaskets are typically sold separately unless specified otherwise.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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