Yamaha 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.

Engine Brand Engine Model/HP/Serial Year Thermostat Engine Stroke HP Horse Power
YAMAHA 3A/ 4A/ 5C/ 6C/ 8C/ 25N 25NWO -1993 6E5-12411-02 2 Stroke 3-8 HP / 25 HP
YAMAHA 9.9F/ 15F/ 25N(1994+)/30D/ 40V/ 75C/ 90A/ 100A/ 115C/ 1994+ 6E5-12411-30 2 Stroke 9.9-115 HP
YAMAHA 130B/ 150F/ 175D/ 200F/G/ 225D/G/ 250A/B/ Z150P/Q/ 1994+ 6E5-12411-30 2 Stroke 130-250 HP / 150 HP
YAMAHA Z175G/ Z200N/P 1994+ 6E5-12411-30 2 Stroke 175-200 HP
YAMAHA F2.5A/ F9.9H/ F13,5B/ F15C/ F20B,M 2003+ 6AH-12411-00 4 Stroke 2.5-20 HP
YAMAHA 9.9D/ 15D/ 20C/ 25D/ 40Q/ 55B 1984-2005 6F5-12411-03 2 Stroke 9.9-55 HP
YAMAHA F15C/F20D 2007-2011 6AH-12411-00 4 Stroke 15-20 HP
YAMAHA F25G 2013+ 6FM-12411-00 4 Stroke 25 HP
YAMAHA 50G/ 60F/ 70B 1984-2003 6H3-12411-10 2 Stroke 50-70 HP
YAMAHA 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
YAMAHA F15A/ F25A/D/ FT25B/F/ F30A/B/ F40A/B/F/ 1998+ 66M-12411-00 4 Stroke 15-40 HP
YAMAHA F50A/F/H/ FT50B/C/G/J/ F60A/C/F/ FT60B/D/G/ F70A/ F80A/ 1999+ 66M-12411-00 4 Stroke 50-80 HP
YAMAHA F100A 2000+ 66M-12411-00 4 Stroke 100 HP
YAMAHA 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
YAMAHA F100D 2005-2015 6D9-12411-00 4 Stroke 100 HP
YAMAHA F100F 2014+ 6FP-12411-00 4 Stroke 100 HP
YAMAHA F(L)225F/ F(L)250D/ F(L)300B 2010+ 6CE-12411-00 4 Stroke 225-300 HP
YAMAHA F(L)200F/ F(L)200G/ F175A 2013+ 6DA-12411-01 4 Stroke 175-200 HP
YAMAHA F(L)300A/ F(L)350A 2007+ 6AW-12411-00 4 Stroke 300-350 HP
YAMAHA F100B/ F(L)115A/ (L)Z250D/F/ Z300A 2000+ 60V-12411-00 Mixed 100-115 HP / 250-300 HP
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  • Outboard Thermostat for Yamaha 2 Stroke 3-250 HP Outboard Motors 6E5-12411 JLM MarineOutboard Thermostat for Yamaha 2 Stroke 3-250 HP Outboard Motors 6E5-12411 JLM Marine

    Outboard Thermostat for Yamaha 2 Stroke 3-250 HP Outboard Motors 6E5-12411

    Product Details: OEM Part Numbers: Yamaha 688-12411, 6E5-12411, 6H3-12411, 6AH-12411 Aftermarket Part Numbers: Parsun T15-04000010, Sierra 18-3540, 18-3622 Equivalent Part Numbers: 6E5-12411-30, 688-12411-10, 688-12411-11, 6E5-12411-10, 6E5-12411-20, 688-12411-00, 688-12411-01 Compatible Models: Yamaha Two-Stroke Engines: 9.9F, 15F, 25N 94 ~, 30D, 40V, 75C, 90A, 100A, 115C,...
    $18.49
    $18.49
  • Thermostat Kit for Mercury 8–50HP & Yamaha F115/F130 6EK-12411-00-00 143°F / 60°C JLM MarineThermostat Kit for Mercury 8–50HP & Yamaha F115/F130 6EK-12411-00-00 143°F / 60°C JLM Marine

    Thermostat Kit for Mercury 8–50HP & Yamaha F115/F130 6EK-12411-00-00 143°F / 60°C

    Product Details: Temperature Rating: 143°F / 60°C OEM Part Numbers: Mercury: 855676, 825212, 824853 Yamaha: 6EK-12411-00-00 Sierra Marine: 18-3642, 18-3639 Equivalent to: Yamaha 6EK-12411-00 Sierra 18-3639, 18-3642 Note: Also compatible with Yamaha 115HP 4-stroke models (2014 and newer) Compatible Models: Mercury Outboards Applicable Horsepower...
    $37.50
    $43.00
    $37.50
  • Thermostat Kit for Yamaha 2-Stroke Outboards JLM MarineThermostat Kit for Yamaha 2-Stroke Outboards JLM Marine

    Thermostat Kit for Yamaha 2-Stroke Outboards

    Product Details Replaces OEM Part Numbers: Thermostat: 6E5-12411-00 / 01 / 02 Thermostat Seal: 6E5-12412-00 Compatible Models Yamaha 2-Stroke Outboards: 3A/Malta 4A, 4B, 5C, 6C, 6D 8C, 20D, 30D, 30G, 30H E25A, 25B, E25B, 25J, 25N (up to 1994), 25V E30H, 40X, E40X Product...
    $18.49
    $18.49
  • Thermostat for YAMAHA Two Stroke Outboard 6E5-12411-30 6E5-12411-20 6E5-12411-20 JLM MarineThermostat for YAMAHA Two Stroke Outboard 6E5-12411-30 6E5-12411-20 6E5-12411-20 JLM Marine

    Thermostat for YAMAHA Two Stroke Outboard 6E5-12411-30 6E5-12411-20 6E5-12411-20

    Product Details: OEM Part Numbers: Thermostat: 6E5-12411-30, 6E5-12411-20-00, 6E5-12411-10-00, 688-12411-10-00, 688-12411-11-00, 688-12411-01 Thermostat Seal: 688-12412-00 Equivalent Part Numbers: Compatible with Sierra and aftermarket equivalents (confirm with supplier for cross-references). Repair Kit Inclusion: Includes 1 thermostat and 1 thermostat seal. Compatible Models: Yamaha Two-Stroke Engines...
    $16.95
    $16.95
  • Thermostat with Gasket for Yamaha Outboard 6E5-12411-10 688-12411-10 61A-12414-A0 6E5-12411-10 JLM MarineThermostat with Gasket for Yamaha Outboard 6E5-12411-10 688-12411-10 61A-12414-A0 6E5-12411-10 JLM Marine

    Thermostat with Gasket for Yamaha Outboard 6E5-12411-10 688-12411-10 61A-12414-A0 6E5-12411-10

    Product Details: Part Numbers: Sea Sierra: 688-12411-10-00 Yamaha OEM: 6E5-12411-10-00 Includes Gasket: 61A-12414-A0 Replaces OEM Part #: Thermostat: 6E5-12411-30, 6E5-12411-20-00, 688-12411-11-00, 688-12411-01 Thermostat Seal: 688-12412-00 Thermostat Housing Gasket: Supersedes 6H4-12414-00, 6H4-12414-A0, 6J8-12414-A0 Compatible Models: Yamaha Outboard Engines Two-Stroke Engines: 25N (1994+), 30D, 40V, 250A,...
    $16.95
    $16.95
  • Thermostat 143°F 62°C with Gasket for Yamaha 2-Stroke 9.9-55 HP 6F5-12411-01 6F5-12411-02 6F5-12411-02 JLM MarineThermostat 143°F 62°C with Gasket for Yamaha 2-Stroke 9.9-55 HP 6F5-12411-01 6F5-12411-02 6F5-12411-02 JLM Marine

    Thermostat 143°F 62°C with Gasket for Yamaha 2-Stroke 9.9-55 HP 6F5-12411-01 6F5-12411-02 6F5-12411-02

    Product Details: Replaces OEM Part Numbers: Yamaha: 6F5-12411-01, 6F5-12411-02, 6F5-12411-03 Sierra: 18-3625 Equivalent Part Numbers: Direct replacement for Yamaha 6F5-12411 series and Sierra 18-3625 Compatible Models: Yamaha 2-Stroke Outboard Engines: 9.9 HP Models: 9.9, 9.9EL, 9.9ES (1986–1995) 9.9L, 9.9S (1986–1990) 9.9M (1991–1995) 15 HP...
    $22.59
    $22.59
  • Thermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 6G8-12411-00 JLM MarineThermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 6G8-12411-00 JLM Marine

    Thermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 6G8-12411-00

    Product Details: Yamaha OEM Part Numbers: 6G8-12411-00 6AH-12411-00 69M-12411-00 69M-12411-01 Aftermarket Equivalents: Sierra 18-3624 Compatible Models: Yamaha 4-Stroke Engines 2.5HP Models: F2.5MSH-0405, F2.5MSH-0406, F2.5MSH-0407, F2.5MSH0608, F2.5MSHD-2005 9.9HP Models: F9.9H (6CA, 2009+) 15HP Models: F15C (6AG, 2007+) 20HP Models: F20B (6AH, 2007+) General Compatibility: Fits...
    $16.98
    $16.98
  • Thermostat with Gasket for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 143°F 62°C 6F5-12411-03 JLM MarineThermostat with Gasket for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 143°F 62°C 6F5-12411-03 JLM Marine

    Thermostat with Gasket for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 143°F 62°C 6F5-12411-03

    Product Details: Replaces OEM Part Numbers: Yamaha: 6F5-12411-01, 6F5-12411-02, 6F5-12411-03 Equivalent Part Numbers: Sierra: 18-3625 Compatible Models: Yamaha 2-Stroke Engines: 9.9 HP Models: 9.9, 9.9EL, 9.9ES (1986–1995) 9.9L, 9.9S (1986–1990) 9.9M (1991–1995) 15 HP Models: 15, 15EL, 15ES (1986–1995) 15L, 15S (1986–1990) 25 HP...
    $18.25
    $18.25
  • Thermostat Kit for Yamaha Outboard F75-F250 4-Stroke Motors 18-3632 67F-12411-01 67F-12411-01-00 JLM MarineThermostat Kit for Yamaha Outboard F75-F250 4-Stroke Motors 18-3632 67F-12411-01 67F-12411-01-00 JLM Marine

    Thermostat Kit for Yamaha Outboard F75-F250 4-Stroke Motors 18-3632 67F-12411-01 67F-12411-01-00

    Product Details: Replaces Yamaha OEM Part Numbers: 67F-12411-01, 67F-12411-00, 6CB-12411-00 Equivalent to Sierra Part Number: 18-3632 Compatible Models: Yamaha 4-Stroke Outboard Motors: 75HP: F75A (2003-2017) 80HP: F80 (2001-2003) 90HP: F90 (2003-2011), F90A (2012-2017) 100HP: F100 (2001-2003) 150HP: F150 (2004-2011), LF150 (2004-2011), F150A (2012-2014), LF150A...
    $17.49
    $17.49
  • Thermostat for Yamaha 115 F115 HPDI 200HP 225HP 250HP 300HP Outboard 60V-12411-00-00 60V-12411-00-00 JLM MarineThermostat for Yamaha 115 F115 HPDI 200HP 225HP 250HP 300HP Outboard 60V-12411-00-00 60V-12411-00-00 JLM Marine

    Thermostat for Yamaha 115 F115 HPDI 200HP 225HP 250HP 300HP Outboard 60V-12411-00-00 60V-12411-00-00

    Product Details: Part Numbers: Yamaha OEM: 60V-12411-00-00, 68V-12411-00-00 Sierra OEM: 18-3525 Temperature Rating: 50℃ (122°F) Compatible Models: Yamaha Outboard Engines Two-Stroke HPDI Engines: 3.1L HPDI 200-300 HP Models (2003–2005): LZ250TUR, LZ250TXR, LZ300TUR, LZ300TXR Z250TUR, Z250TXR, Z300TUR, Z300TXR VZ Series (2003–2009): VZ200RTLR, VZ200TLR, VZ225HTLR, VZ225TLR,...
    $17.49
    $17.49
  • Thermostat 143°F 62°C for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 6F5-12411 JLM MarineThermostat 143°F 62°C for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 6F5-12411 JLM Marine

    Thermostat 143°F 62°C for Yamaha 2-Str 9.9 - 55 HP 6F5-12411-01 6F5-12411-02 6F5-12411

    Product Details Replacement Part Numbers: Yamaha OEM: 6F5-12411-01, 6F5-12411-02, 6F5-12411-03 Sierra Aftermarket: 18-3625 Compatible Models Yamaha 2-Stroke Engines: 9.9 HP: 9.9, 9.9EL, 9.9ES (1986-1995); 9.9L, 9.9S (1986-1990); 9.9M (1991-1995) 15 HP: 15, 15EL, 15ES (1986-1995); 15L, 15S (1986-1990) 25 HP: C25EL (1991-1997); C25ML (1993-1997);...
    $23.00
    $23.00
  • Thermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 69M-12411-00 JLM MarineThermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 69M-12411-00 JLM Marine

    Thermostat for Yamaha 4 Stroke F 9.9 to 70 HP Outboard Motor 6G8-12411-00 69M-12411-00

    Product Details: Yamaha OEM Part Numbers: 6G8-12411-00, 6AH-12411-00, 69M-12411-01, 69M-12411-00 Aftermarket Part Number: 18-3624 Equivalent Part Numbers: Replaces 6AH-12411-00, 69M-12411-01, 69M-12411-00, 6G8-12411-00, and 18-3624 Compatible Models: Yamaha 4-Stroke Engines 2.5HP Models: F2.5MSH-0405, F2.5MSH-0406, F2.5MSH-0407, F2.5MSH0608, F2.5MSHD-2005 9.9HP Models: F9.9H (6CA, 2009 and newer) 15HP...
    $21.49
    $21.49
  • Thermostat for Yamaha 60 70 HP 60TLR 70TLR 122°F 50°C 6H3-12411-11-00 JLM MarineThermostat for Yamaha 60 70 HP 60TLR 70TLR 122°F 50°C 6H3-12411-11-00 JLM Marine

    Thermostat for Yamaha 60 70 HP 60TLR 70TLR 122°F 50°C 6H3-12411-11-00

    Product Details: Yamaha OEM Part Numbers: 6H3-12411-11-00, 6H3-12411-00-00, 6H3-12411-01-00, 6H3-12411-10-00, 6E5-12411-30-00, 6E5-12411-20-00, 6E5-12411-10-00, 688-12411-11-00, 688-12411-10-00, 688-12411-00-00, 688-12411-01-00 Equivalent Part Numbers: Honda®: 19300-ZY6-003, 19300-ZV5-305, 7634371 Sierra®: 18-3540, 18-3622 (also listed as 183622) Mallory®: 9-43035 Compatible Models: Yamaha Outboards Two-Stroke Engines (3–220HP): 60–70HP Models: 60HP: 60TLR...
    $17.49
    $17.49
  • Thermostat 140°F 60°C for Yamaha 20HP 25HP F20 F25 6FM-12411-00 6FM-12411-00-00 JLM MarineThermostat 140°F 60°C for Yamaha 20HP 25HP F20 F25 6FM-12411-00 6FM-12411-00-00 JLM Marine

    Thermostat 140°F 60°C for Yamaha 20HP 25HP F20 F25 6FM-12411-00 6FM-12411-00-00

    Product Details: Replaces Yamaha OEM Part #: 6FM-12411-00-00 Equivalent Part Numbers: 6FM-12411-00-00 (Direct OEM Replacement) Compatible Models: Yamaha 4-Stroke Engines 20HP Models (2018–2022): F20LMHB F20LWB F20LWHB F20LWPB F20LWPHB F20SMHB F20SWB F20SWHB F20SWPB 25HP Models: 2016–2022: F25LC F25LMHC 2017–2020: F25LWTC 2016–2021: F25LWC F25LWHC F25SMHC F25SWC...
    $41.39
    $41.39
  • Thermostat for Yamaha 150 175 200 HP 6DA-12411-01-00 6DA-12411-00 6DA-12411-01 JLM MarineThermostat for Yamaha 150 175 200 HP 6DA-12411-01-00 6DA-12411-00 6DA-12411-01 JLM Marine

    Thermostat for Yamaha 150 175 200 HP 6DA-12411-01-00 6DA-12411-00 6DA-12411-01

    Product Details: Replaces OEM Part Numbers: Yamaha: 6DA-12411-01-00, 6DA-12411-00-00 Sierra: 18-3636 Compatible Models: Yamaha 4-Stroke Engines 150 HP Models: F150C, LF150C (2017) VF150 (2013–2017) VF150A (2018) 175 HP Models: F175C, LF175C (2017) F175A (2014–2018) VF175 (2015–2018) 200 HP Models: F200B, LF200B (2012–2018) F200C, LF200C...
    $29.00
    $29.00
  • Thermostat for Yamaha F LF 300 350 A B C 6AW-12411-00 6AW-12411-00-00 JLM MarineThermostat for Yamaha F LF 300 350 A B C 6AW-12411-00 6AW-12411-00-00 JLM Marine

    Thermostat for Yamaha F LF 300 350 A B C 6AW-12411-00 6AW-12411-00-00

    Product Details: OEM Part Numbers: Yamaha 6AW-12411-00 Aftermarket Equivalents: Sierra 18-3634 Temperature Rating: 60℃ / 140°F Compatible Models: Yamaha Four-Stroke Engines 300HP Models: F300 / LF300 (2007–2009) 350HP Models: F350 / LF350 (2007–2009) F350A / LF350A (2010–2011) F350B / LF350B (2012–2015) F350C / LF350C...
    $23.00
    $23.00
  • Thermostat 71°C for Yanmar 2GMF 2GM20F 2GM20F-YEU 3GMF 3HMF 3GM30F 121750-49800 JLM MarineThermostat 71°C for Yanmar 2GMF 2GM20F 2GM20F-YEU 3GMF 3HMF 3GM30F 121750-49800 JLM Marine

    Thermostat 71°C for Yanmar 2GMF 2GM20F 2GM20F-YEU 3GMF 3HMF 3GM30F 121750-49800

    Product Details: Yanmar OEM Part Number: 121750-49800 Replaces OEM Part #: 121750-49800 Compatible Models: Yanmar Four-Stroke Marine Diesel Engines: 2GM20F 2GM20F-YEU 2GMF 3GM30F 3GM30F-YEU 3GMDF 3GMF 3HM35F 3HMF Technical Specifications: Rated Temperature: 71°C (159.8°F) Additional Information: Ensures optimal engine performance by maintaining consistent operating...
    $36.50
    $36.50
  • Thermostat for Yamaha 75-90 HP 4-Stroke 16-UP 6FP-12411-00 6FP-12411-00-00 JLM MarineThermostat for Yamaha 75-90 HP 4-Stroke 16-UP 6FP-12411-00 6FP-12411-00-00 JLM Marine

    Thermostat for Yamaha 75-90 HP 4-Stroke 16-UP 6FP-12411-00 6FP-12411-00-00

    Product Details: Yamaha OEM Part Numbers: 6FP-12411-00, 6FP-12411-00-00 Sierra OEM Part Number: 18-3641 Aftermarket Part Number: Compatible with Yamama 75-90 HP 4-Stroke 16-UP models Compatible Models: Yamaha Four-Stroke Engines: 75 HP (4-cylinder): 2017-2018 90 HP (4-cylinder): 2016-2018 Technical Specifications: Condition: Brand new Design: Engineered...
    $45.50
    $45.50
  • Thermostat for Yamaha 4-Stroke 80-100HP 6D9-12411-00 JLM MarineThermostat for Yamaha 4-Stroke 80-100HP 6D9-12411-00 JLM Marine

    Thermostat for Yamaha 4-Stroke 80-100HP 6D9-12411-00

    Product Details: Yamaha OEM Part Number: 6D9-12411-00 Replaces: OEM #6D9-12411-00 Compatible Models: Yamaha 4-Stroke Outboard Engines: F80B Series: 80HP F80B (Year models may vary; confirm compatibility with your engine manual). F100D Series: 100HP F100D (Year models may vary; confirm compatibility with your engine manual)....
    $50.50
    $50.50
  • Thermostat for Yamaha 4.2L V6 F225, F250, F300 6CE-12411-00-00 JLM MarineThermostat for Yamaha 4.2L V6 F225, F250, F300 6CE-12411-00-00 JLM Marine

    Thermostat for Yamaha 4.2L V6 F225, F250, F300 6CE-12411-00-00

    Product Details Yamaha OEM Part Number: 6CE-12411-00-00 Package Quantity: 2-Pack Compatible Models Yamaha Outboard Engines Four-Stroke Engines (2006 and Later Models): F225 Series: F225XCA, F225XCA_01, F225XCA_04 F250 Series: F250DET1X, F250UCA, F250UCA_01, F250UCA_04, F250XCA, F250XCA_01, F250XCA_04 F300 Series: F300BET1U, F300UCA, F300UCA_01, F300UCA_04, F300XCA, F300XCA_01, F300XCA_04...
    $27.49
    $27.49

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