Quicksilver 8M0139434 Thermostat fits newer Mercury 15-20hp EFI outboards. Featuring a self-cleaning design, it allows cooling system contaminants to flush through closing surfaces. This thermostat is calibrated for a precise temperature response to ensure peak performance and efficiency.
- Fits Mercury 15hp and 20hp EFI 4-stroke outboards (2017+)
- Calibrated for proper cooling system temperature response
- Self-cleaning design prevents blockage from contaminants
- Easy to replace with common shop tools
- Produced to meet Mercury Marine original equipment specifications
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