17670-90J01 Suzuki Marine 60°C Thermostat | Genuine OEM Outboard Part

🔧 Product Description

Genuine Suzuki Marine 60°C Thermostat - Part Number: 17670-90J01

Genuine Suzuki 60°C thermostat used on selected DF70 through DF300 four-stroke outboards. It regulates cooling-water flow to help the engine reach and maintain its intended operating temperature.

⚙️ Key Features

• Genuine Suzuki 60°C thermostat
• Factory-calibrated opening temperature
• Controls warm-up and cooling-water circulation
• Helps maintain efficient combustion and oil temperature
• Must not be substituted with a 50°C or 71°C unit unless specified

🚤 Compatibility

Commonly used on

• Suzuki medium- and large-horsepower four-stroke cooling systems

Typically suits

• Engine models:
• DF70A, DF80A and DF90A
• DF100B
• Original DF90, DF100, DF115 and DF140 families
• DF150 and DF175
• DF200, DF225 and DF250
• Selected DF300 applications
• HP Range: 70HP-300HP
• Engine Type: Inline-four and V6 four-stroke outboards
• Year Range: Approximately 2001 onward across the applicable engine families
• Model/Serial Note: Some engines use more than one thermostat temperature or position. Match the complete model, location and original temperature rating.

🔌 Function

The thermostat restricts water flow while the engine is cold, then opens near its calibrated temperature to regulate cooling.

⚠️ Common Signs of Failure

• Engine runs excessively cold
• Extended warm-up and increased fuel use
• Overheating caused by a thermostat stuck closed
• Temperature warning at idle
• Salt or corrosion deposits around the valve
• Thermostat remains open or closed during bench testing

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 17670-90J01 → Supersedes 17670-90J00

OEM / Related Numbers

• 17670-90J00
• 17670-90J01

Aftermarket / Verified Equivalents

• Yamaha: 67F-12411-01
• Mercury: 855676-1
• Sierra Marine: 18-3632

📦 Condition

• Genuine Suzuki Marine part
• Brand new
• Supplied in original or equivalent protective packaging