Yamaha Outboard Thermostat
To assist you in maintaining and repairing your marine engines, we hope the following resources may be of use:
Yamaha Outboard Thermostat Quick‑Reference:
The OEM number is clickable and will take you directly to the correct part or rebuild kit.
Note: This table may not include all models. If your model is not listed in this table, please check the detailed product list below.
Model/HP
Year
Thermostat
Engine Type
HP
3A/ 4A/ 5C/ 6C/ 8C/ 25N 25NWO
-1993
6E5-12411-02
2 Stroke
3-8 HP / 25 HP
Model/HP
Year
Thermostat
Engine Type
HP
9.9F/ 15F/ 25N(1994+)/30D/ 40V/ 75C/ 90A/ 100A/ 115C/
1994+
6E5-12411-30
2 Stroke
9.9-115 HP
9.9D/ 15D/ 20C/ 25D/ 40Q/ 55B
1984-2005
6F5-12411-03
2 Stroke
9.9-55 HP
Model/HP
Year
Thermostat
Engine Type
HP
50G/ 60F/ 70B
1984-2003
6H3-12411-10
2 Stroke
50-70 HP
Model/HP
Year
Thermostat
Engine Type
HP
130B/ 150F/ 175D/ 200F/G/ 225D/G/ 250A/B/ Z150P/Q/
1994+
6E5-12411-30
2 Stroke
130-250 HP / 150 HP
Model/HP
Year
Thermostat
Engine Type
HP
Z175G/ Z200N/P
1994+
6E5-12411-30
2 Stroke
175-200 HP
Model/HP
Year
Thermostat
Engine Type
HP
F2.5A/ F9.9H/ F13,5B/ F15C/ F20B,M
2003+
6AH-12411-00
4 Stroke
2.5-20 HP
Model/HP
Year
Thermostat
Engine Type
HP
F4A/B/ F5A/ F6A/C/ F8B/C/ FT8D/ F9.9B/C/F/J/ FT9.9A/D/G/L
1999+
66M-12411-00
4 Stroke
4-9.9 HP
Model/HP
Year
Thermostat
Engine Type
HP
F15C/F20D
2007-2011
6AH-12411-00
4 Stroke
15-20 HP
F15A/ F25A/D/ FT25B/F/ F30A/B/ F40A/B/F/
1998+
66M-12411-00
4 Stroke
15-40 HP
Model/HP
Year
Thermostat
Engine Type
HP
F25G
2013+
6FM-12411-00
4 Stroke
25 HP
Model/HP
Year
Thermostat
Engine Type
HP
F50A/F/H/ FT50B/C/G/J/ F60A/C/F/ FT60B/D/G/ F70A/ F80A/
1999+
66M-12411-00
4 Stroke
50-80 HP
Model/HP
Year
Thermostat
Engine Type
HP
F80A/B/ F100A(01+)/ F100B/ F(L)150A/ F(L)200A/C/F(L)225A/B/C/ F(L)250A/B
1999-2018
67F-12411-01
4 Stroke
80-250 HP
Model/HP
Year
Thermostat
Engine Type
HP
F(L)200F/ F(L)200G/ F175A
2013+
6DA-12411-01
4 Stroke
175-200 HP
Model/HP
Year
Thermostat
Engine Type
HP
F(L)225F/ F(L)250D/ F(L)300B
2010+
6CE-12411-00
4 Stroke
225-300 HP
Model/HP
Year
Thermostat
Engine Type
HP
F(L)300A/ F(L)350A
2007+
6AW-12411-00
4 Stroke
300-350 HP
Model/HP
Year
Thermostat
Engine Type
HP
F100B/ F(L)115A/ (L)Z250D/F/ Z300A
2000+
60V-12411-00
Mixed
100-115 HP / 250-300 HP