Thermostatic valve for Yamaha/Selva Thermostatic valve for Yamaha and Selva engines Ref. no. 66M-12411-01 and 6G8-12411-00 YAMAHA: F4 F5 F6 F8/ FT F9.9 F15 F25 F30 F40 F50 F60 F70 F80 F100 SELVA: Ray 8 Pike 9.9 King Fish 25 Aruana EFI 40 Dorado EFI Murena EFI 40 XSR