50℃ Thermostat 17670-90J20 for Suzuki Outboard 100 140 115 150 175 300 200 250

50℃ Thermostat 17670-90J20 for Suzuki Outboard 100 140 115 150 175 300 200 250

This 50℃ Thermostat 17670-90J20 is a replacement cooling system component for Suzuki Outboard motors, regulating engine temperature to ensure smooth operation and longevity across multiple horsepower ratings.

Overview

This 50℃ Thermostat for Suzuki Outboard 100 140 115 150 175 300 200 250 is an essential part that manages coolant flow to maintain the correct engine temperature. It is designed as a direct replacement for the OEM part number 17670-90J20, providing accurate thermal control for a wide range of Suzuki outboard engines. This thermostat helps your engine run efficiently by reaching optimal operating temperature quickly and maintaining it under various conditions.

Built For Performance

• Precision-calibrated to open at 50℃ for accurate temperature regulation
• Constructed from corrosion-resistant materials suited for marine use
• Direct fitment matching original OEM specifications for part 17670-90J20
• Sturdy construction ensures dependable performance over extended periods
• Essential for preventing engine overheating or slow warm-up times

Fits These Machines

• for Suzuki Outboard 100HP
• for Suzuki Outboard 115HP
• for Suzuki Outboard 140HP
• for Suzuki Outboard 150HP
• for Suzuki Outboard 175HP
• for Suzuki Outboard 200HP
• for Suzuki Outboard 250HP
• for Suzuki Outboard 300HP

On-The-Job Use

• Replaces an aging thermostat during scheduled cooling system service
• Helps maintain consistent engine temperature during trolling or slow-speed operation
• Supports reliable performance during high-speed runs and heavy loads
• Restores proper warm-up behavior after engine rebuild or cooling system repair
• Useful for winterizing or preparing the outboard for seasonal operation

Specs At A Glance

Good To Know

Q: Is this thermostat the same as the OEM part? A: This thermostat is designed to match the function and fit of the OEM part number 17670-90J20, but it is not an original Suzuki product.

Q: What happens if I run the outboard without a functioning thermostat? A: Running without a working thermostat can cause the engine to run too cold, leading to poor fuel economy, increased wear, and faster sludge buildup in the oil.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.