Genuine Yamaha Thermostat Gasket to fit the following Yamaha Outboards:
Listed compatible models
Horsepower
Yamaha model codes
20 hp
20D
25 hp
25D, 25J, 25N, 25Q
30 hp
30D
40 hp
40E, 40H, 40N, 40V, 40Y
50 hp
50C, 50D, 50H
200 hp
200H
225 hp
225C, 225F, 225G
250 hp
250A, 250B, 250G
Please call with your Outboard model and serial number to confirm of you are unsure.