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Add to CartSierra high quality aftermarket engine parts are manufactured to meet or exceed OEM requirements. Sierra 18-3541 is a replacement thermostat for Yamaha Outboards.
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
Sierra 18-3500 Johnson/Evinrude Thermostat Sierra high-quality engine parts are designed to meet OEM specifications. Temperature Rating: 140 degrees Interchangeable...
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Sierra 18-3525 Thermostat Sierra replacement thermostat for Yamaha Outboards. Temperature Rating: 122°F / 50°C Fits: F115/LF115 (2005-14), Z250/LZ250 (2003-05), LZ300/Z300 (2004-06),...
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Sierra 18-3630 Thermostat for Honda Outboards Sierra replacement thermostat for Honda Outboards. Temperature rating: 72°C / 162°F Interchangeable with: Honda...
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Sierra 18-3632 Thermostat Sierra high-quality replacement thermostat for Yamaha and Suzuki Outboards. Temperature Rating: 140°F / 60°C Interchangeable with: Suzuki...
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Sierra 18-43017 Thermostat Sierra replacement thermostat for Indmar GM and Ford Raw Water Cooled Engines. Fits: MCM 496 Mag & HO and MIE 8.1L & HO 160° Interchangeable...
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Sierra 18-3535 Thermostat Additional Details: Temperature Rating: 130° Use with: 18-3606 Thermostat Kit 18-3606D Thermostat Kit Replaces: Mercury...
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