Quicksilver 8M6010297 Thermostat - Fits Yamaha F250 4-Stroke OutboardsQuicksilver thermostat 8M6010297 is use on 250hp 4.2L VF250 Yamaha 4-stroke outboards. This Quicksilver thermostat is designed to meet all OEM specifications. See your owner's or service manual for specific application and installation information. Hardware, gaskets or seals for installation sold separately This Quicksilver thermostat replaces the following OEM part number: 6CB?12411?10?00. Also can be found in the aftermarket as 18-3637.Engine Part Application:For use on 250 hp VF250 Yamaha 4-stroke outboards.