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20% Off
18-3525 Yamaha Replacement Thermostat
$36.06
$36.06
$45.14
Details: Temperature Rating: 122°F / 50°C Fits: F115/LF115 (2005-14), Z250/LZ250 (2003-05), LZ300/Z300 (2004-06), VZ200/VZ225/VZ250/VZ300 (2005-09) Yamaha Outboard 60V-12411-00-00 68V-12411-00...
10% Off
18-3540 Sierra Yamaha Replacement Thermostat Replaces 6E5-12411-30
$24.24
$24.24
$26.89
Details: Temperature Rating: 122°F / 50°C Note: Will not fit 3.1L   Interchanges:   Mallory 9-43035 Yamaha Outboard 688-12411-00-00 688-12411-01-00 688-12411-10-00 688-12411-11-00 6E5-12411-...
36% Off
18-3541 Sierra Thermostat Replaces Yamaha
$32.36
$32.36
$50.49
Temperature Rating: 140°F / 60°C   Interchanges: Mallory 9-43037 Yamaha Outboard 66M-12411-00-00 66M-12411-01-00 6G8-12411-00-00 6G8-12411-01-00 6G8-12411-02-00 6G8-12411-03-00
20% Off
18-3543 Johnson/Evinrude Replacement Thermostat
$17.49
$17.49
$21.99
18-3543 THERMOSTAT 143° Replaces: OMC 393659, 434841, 378065, 508626, 5005440 Fits: 40-250hp E-tech, 6-55hp, Cross V4 & V6, 9.9  4-Stroke (1994-01), 15 4-Stroke (1994-01).  If unsure if this pr...
18-3544 Replaces Johnson/Evinrude 435491 and 437090
$24.99
$24.99
Replaces OEM 0435491. 18-3544 THERMOSTAT  Fits: E100 (2004-06), E115 (2002-06), E75 (2002-03), E90 (2002-03), E150 (1993-94), E175 (1993-94), J105 (2003), J115 (2002-06), J150 (1993-94, 2002-06), ...
23% Off
18-3545 Sierra Thermostat, 130 Degrees Replaces Johnson/Evinrude 437090
$24.45
$24.45
$31.69
Temperature Rating: 130°F   Replaces: 437090 Evinrude Johnson OMC BRP 8M6010303 Mercury Marine 9-43031 Mallory Marine
27% Off
18-3561 Sierra OMC Replacement Thermostat
$14.66
$14.66
$20.19
Details: Temperature Rating: 143°F Interchanges: GLM 13150 Johnson/Evinrude Outboard 436195 Mallory 9-43023
23% Off
18-3609 Yamaha Replacement 122 Degree Thermostat Kit with Gasket
$30.02
$30.02
$39.09
Details: Temperature Rating: 122°F / 50°C List of Containing Parts Sierra Item # OE/Competitor # Quantity Description 18-0829 Mallory 9-60510 Yamaha Outboard 61A-12414-A0-00 6H4-124...
6% Off
18-3622 Yamaha Replacement Thermostat Kit
$39.98
$39.98
$42.49
Kit contains both the thermostat and thermostat gasket.   6H3-12411-11-00 + 62Y-12414-00-00 = 18-3622 kit   Temperature Rating: 122°F / 50°C   Yamaha OutboardOE Numbers for 18-3622 6H3-12411...
36% Off
18-3625 Yamaha Replacement Thermostat Kit (Includes gasket)
$29.99
$29.99
$46.69
Seal is included Temperature Rating: 140°F / 60°C Yamaha OutboardOE Numbers for 18-3625 6F5-12411-01-00 6F5-12411-02-00 6F5-12411-03-00
15% Off
18-3628-1 Honda Replacement Thermostat
$40.02
$40.02
$46.89
This is a sierra brand thermostat that interchanges Honda 19300-ZW9-003.  Sierra parts are highly regarded in the boating industry as the highest standard for aftermarket marine parts. Additional ...
21% Off
18-3632 Yamaha Replacement Thermostat
$32.42
$32.42
$41.09
18-3632 THERMOSTAT Replaces:  67F-12411-00, 67F-12411-01 Fits: F75-F250 (2005 & Up) If you are unsure if this product fits your application please call (757) 787-1313 to confirm.