Mercury Mercruiser Thermostats
As the leading aftermarket parts supplier, Marine Parts China provides a comprehensive range of inboard/outboard thermostats compatible with major marine engine brands including Yamaha, Honda, Suzuki, Mercury Mercruiser, OMC, Volvo Penta and Yanmar. Our goal is to deliver exceptional quality products and attentive service to both our distributors and their valued customers.
Quality Assurance
- Extensively tested for durability and reliability, meeting strict OEM specifications for a precise fit and OE-quality function
- Withstands 500 hours of salt spray testing and over 20,000 cycles of opening and closing.
- 1 Year Limited Warranty on Manufacturer’s Defect in Material or Workmanship
Contact us now, to experience boat parts procurement services directly from the factory.
Thermostats for Mercury Mercruiser Inboard motor
18-43175 855676002 9-4317 Thermostat for Mercury Mercruiser
60 ºC Thermostat 60 Degrees
Replace:
855676002
8M0119207
60 ºC Thermostat 60 Degrees
Where Used Temperature Rating: 130°F
8/9.9 (209CC) 4-STROKE – 8 (4-STROKE)(209cc) 15/20 Carburetor/2 CYLINDER/4-STROKE – 20 Carb(2CYL)(4-STROKE)
25/30/JET 25 EFI/3 CYLINDER 4-STROKE – 30 EFI (3 CYL.)(4-STROKE) 25HP SEAPRO 4-STROKE INTERNATIONAL – 25 SEAPRO (4-STROKE)
15/20 Carburetor/2 CYLINDER/4-STROKE – 15 Carb(2CYL)(4-STROKE) 15HP SEAPRO 4-STROKE INTERNATIONAL – 15 SEAPRO (4-STROKE)
8/9.9 (209CC) 4-STROKE – 9.9 (4-STROKE)(209cc) 15/20 Carburetor/2 CYLINDER/4-STROKE – 15 Carb(2CYL)(4-STROKE) JCI
15/20 Carburetor/2 CYLINDER/4-STROKE – 10 Carb(2CYL)(4-STROKE) 25/30/JET 25 EFI/3 CYLINDER 4-STROKE – 25 Jet EFI (3 CYL.)(4-STROKE)
15 HP SEAPRO 4-STROKE – 15 SEAPRO (4-STROKE) 25/30/JET 25 EFI/3 CYLINDER 4-STROKE – 25 EFI (3 CYL.)(4-STROKE)
Mallory
9-4317
Mercury Marine
855676002
8M0119207
Nissan/Tohatsu Outboard
3NV010300M
3R3-01030-0
3R3010300M
Mallory
9-43175 |
Mercury Marine
855676002 |
8M0119207 |
Nissan/Tohatsu Outboard
3NV010300M |
3R3-01030-0 |
3R3010300M |
855676005 8M4500081 Thermostat for Mercury Mercruiser
71℃ Fits on the following engines:
8 9.9HP 4 stroke engines
71 ºC 160 ºF
replaces 855676005
Replace:
855676005
8M4500081
Mercury
855676005
Thermostat 71 Degrees
18-3549 14586 9-43014 Thermostat for Mercury Mercruiser
48.8℃ Fit:Mercury/Mariner A197112 & Later 6 7 8 9.9 & 15 HP
120°F
Replace:
14586
Sierra
18-3549
GLM
13120
Mallory
9-43014
Mercury Marine
14586
Sears
14586
18-3569 803061T1 GLM13124 Thermostat for Mercury Mercruiser
Thermostat 48.8℃
Replace:
803061T1
Temperature Rating: 120°F
Fits: Various Mercury/Mariner 70-125 hp 2 cycle outboards (1987 and newer)
GLM
13124 |
Mallory
9-43155 |
Mercury Marine
803061T1 |
F664068 Thermostat for Mercury Mercruiser
Thermostat (130 Degrees)
Replace:
F664068
18-3649 807252T2 13100 9-43002 Thermostat for Mercury Mercruiser
Thermostat 71 ºC
Temperature Rating: 160°F
Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
Thermostat for 4.3L 5.0L 5.7L
Replace:
807252T2 8M0091470 8M0109441
8052732
8072522 807252-2
Sierra: 18-3649
Crusader
97895
GLM
13100
Mallory
9-43002
Mercruiser Stern Drive
8052732
8072522
807252T2
8M0091470
8M0109441
Temperature Rating: 160°F
Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
Crusader
97895 |
GLM
13100 |
Mallory
9-43002 |
Mercruiser Stern Drive
8052732 |
8072522 |
807252T2 |
8M0091470 |
8M0109441 |
18-3551 8M0089715 4142885 Thermostat for Mercury Mercruiser
82℃/140ºF For Various MerCruiser Stern Drives 140 degrees
Used on all V-8 Chrysler engines w/Rochester carburetors 1986 – present
For: Raw water-cooled engines
For Ford 302 / 351 CID Engines
O.D.: 2.125
Height: 1.50
Replace:
8M0089715
807252T1
82℃/140ºF For Various MerCruiser Stern Drives 140 degrees
Used on all V-8 Chrysler engines w/Rochester carburetors 1986 – present
For: Raw water-cooled engines
For Ford 302 / 351 CID Engines
Chrysler Inboard
4142885 |
Crusader
96319 |
GLM
13030 |
Mallory
9-43013 |
Mercruiser Stern Drive
32728 |
35884 |
59137 |
59137A1 |
67464 |
8052731 |
8072521 |
807252T1 |
8M0089715 |
Osco
143-DEG |
Pleasurecraft
RO26002E |
O.D.: 2.125
Height: 1.50
18-3640 8M0117413 Thermostat for Mercury Mercruiser
48.8℃ Fits 40-60HP (1C050252 & Up)
Replace:
8M0117413
Sierra: 18-3640
Mercury Marine
8M0117413
Fits: Mercury 40-60HP (1C050252 & Up)
Mercury Marine
8M0117413 |
8M0168892 |
18-43015 864493 85860 Thermostat for Mercury Mercruiser
Fits: MCM 4.3L, 5.0L, 5.7L & 6.2L MPI engines w/dry joint exhaust & closed cooling
Temperature Rating: 170°F (77°C)
with Seal 25-8071341
Replace:
864493
Sierra
18-43015
GLM
85860
MALLORY
9-43015
MERCURY
25-807134
Mercruiser Stern Drive
864493
8M0139434 Thermostat with gasket for Mercury Mercruiser
52℃ Fits 9.9 EFI (1R008146+)
10 15 20 EFI
(0R833820+)
2 cyl
Replace:
8M0139434
82℃/140ºF For Various MerCruiser Stern Drives 140 degrees
Used on all V-8 Chrysler engines w/Rochester carburetors 1986 – present
For: Raw water-cooled engines
For Ford 302 / 351 CID Engines
Chrysler Inboard
4142885 |
Crusader
96319 |
GLM
13030 |
Mallory
9-43013 |
Mercruiser Stern Drive
32728 |
35884 |
59137 |
59137A1 |
67464 |
8052731 |
8072521 |
807252T1 |
8M0089715 |
Osco
143-DEG |
Pleasurecraft
RO26002E |
O.D.: 2.125
Height: 1.50
18-3647 807252Q5 13101 9-43157 Thermostat Kit for Mercury Mercruiser
71°C Thermostat Kit 160°for Mercruiser 1987 & UP 4.3L V6 5.0L 5.7L 7.4L 8.2L V8
Kit Contains:
1x 160 Degree Thermostat (Replaces 808252 8M0109441)
1x Cover Gasket (Replaces 27-48818-1)
1x Cover Gasket (Replaces 27-33179-2)
1x Cover Gasket (Replaces 27-47510)
1x Housing Gasket (Replaces 27-53045-1)
Replace:
807252Q5
807252T8
Sierra
18-3647
GLM
13101
Mallory
9-43157
Mercruiser Stern Drive
807252Q5
807252T8
Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
Temperature rating: 160°F
GLM
13101 |
Mallory
9-43157 |
Mercruiser Stern Drive
807252Q5 |
807252T5 |
807252T8 |
807252Q5-only Kits for Mercury Mercruiser
Thermostat Kit 160°for Mercruiser 1987 & UP 4.3L V6 5.0L 5.7L 7.4L 8.2L V8
Kit Contains:
1x Cover Gasket (Replaces 27-48818-1)
1x Cover Gasket (Replaces 27-33179-2)
1x Cover Gasket (Replaces 27-47510)
1x Housing Gasket (Replaces 27-53045-1)
Replace:
807252Q5-only Kits
GLM 13101
Sierra: 18-3647
only Kits
Fits: 1987 & newer GM engines with standard cooling requiring a 160° thermostat
Temperature rating: 160°F
GLM
13101 |
Mallory
9-43157 |
Mercruiser Stern Drive
807252Q5 |
807252T5 |
807252T8 |
18-43052 14586A3 75692A10 13121 Thermostat Kit for Mercury Mercruiser
Fit: various Mercury/Mariner 6-25 HP 2-Stroke 2 cycle outboards
Replace:
14586A3
Mercruiser 14586A3 75692A10 75692A11 75692A9
Sierra: 18-43052
GLM 13121
Temperature Rating: 120°F
Fits: Various Mercury/Mariner 6-25 hp 2 cycle outboards
Mallory
9-43052 |
Mercury Marine
14586A3 |
75692A10 |
75692A11 |
75692A9 |
18-3550 59078 13020 29-59078 Thermostat for Mercury Mercruiser
Temperature Rating: 140°F
Fits: MerCruiser 120/2.5L (s/n 2324347 & Up) w/cast iron exhaust manifolds
Fits: Mercruiser 140-3.0L (s/n 0L340999 & below) and 165
Replace:
59078
GLM
13020
Sierra
18-3550
Barr MC
29-59078
Mallory
9-43153
9-43020
Chrysler/Force/US Marine
F84068
F84068-1
F84068-2
F85068-2
Mercruiser Stern Drive
59078
59078A1
59078B
Temperature Rating: 140°F
Fits: MerCruiser 120/2.5L (s/n 2324347 & Up) w/cast iron exhaust manifolds
Fits: Mercruiser 140-3.0L (s/n 0L340999 & below) and 165
Chrysler/Force/US Marine
F84068 |
F84068-1 |
F84068-2 |
F85068-2 |
GLM
13020 |
Mallory
9-43020 |
Mercruiser Stern Drive
59078 |
59078A1 |
59078B |
18-2831 59078 27-475901 Thermostat for Mercury Mercruiser
60℃ Temperature 140°F
Fit:MerCruiser 3.0L & 4.3L engines requiring a 140° Thermostat; Mercruiser inline GM 4 cylinder and 6 cylinder 153 120 2.5 140 181 3.0 250 4.1 165
Replace:
59078 with Gasket
59078Q3
Mercruiser 27-475901 27-47590Q01 47590 47590B1 59078 59078A1 59078B 59078Q3 59078T3 59078T4 F84068 F84068-1 F84068-2 F85068-2
OMC Johnson Evinrude 0508543 0508617
GLM:13370
Sierra: 18-2831 18-3550 18-3650
Fits: Renault 90 & GM in-line 4 & 6 cyl. engines
Barr
MC472747590 |
GLM
31430 |
Mallory
9-60012 |
Mercruiser Stern Drive
27-47590 |
27-475901 |
27-47590B1 |
18-3638 804540 5040958 3H601030 Thermostat for Mercury Mercruiser
Temperature 52°C (126F)
Thermostat Fits 2.5/4/5/6HP 4-stroke
Replace:
804540
OMC Johnson Evinrude 5040958;
Tohatsu 3H601030
Sierra 18-3638
Fits: Mercury 2.5-3.5HP (0R131842 & Up), 4-6HP (0R411838 & Up)
Mercury Marine
804540 |
18-3668 807252Q4 13390 Thermostat with Gaskets for Mercury Mercruiser
Crusader Thermostat 140º
For Ford 302 / 351 CID Engines
Used on all V-8 Chrysler engines w/Rochester Carburetors 1986 – present
Replace:
807252Q4 with Gaskets
GLM
13390
Mallory
9-43150
Mercruiser Stern Drive
807252Q4
807252T4
807252T7
Temperature Rating: 142°F
Fits: 1983 & newer GM V-6 & V-8 engines with standard cooling
GLM
13390 |
Mallory
9-43150 |
Mercruiser Stern Drive
807252Q4 |
807252T4 |
807252T7 |
18-3541 9-43037 825212T02 66M-12411-00-00 Thermostat with Gaskets for Mercury Mercruiser
Temperature Rating: 140°F / 60°C60℃ 140°F
Fits F6(2001-05) F8(2001-05) T8(2001-05) F9.9(1985-05) T9.9(1985-05) T9.9(1991-05) F15(1998-05) F25(1998-05) T25(2001-05) F30(2001-05) F40 4cyl (1999) F40 3cyl (2000-05) F50 (1995-05) T50 (1996-05) F60 (2002-05) T60 (2003-05) F80 (1999-00) F100 (1999-00)
Replace:
825212T02 with Gasket
Sierra
18-3541
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
Mercruiser
825212
825212A1
825212001
825212T02
855676
855676A1
855676003
Honda
19300-ZW9-003
19300-881-741
19300-921-003
19300-ZY3-023
Parsun
F15-07000031
HZW9-19300-003
WSM
775-205
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 |
18-3555 27-74830 0508570 Thermostat Kits for Mercury Mercruiser
Temperature Rating: 160°F
Fits: 1998 & newer GM V-6 & V-8 engines with closed cooling”
Thermostat Kit for MerCruiser 3.7 liter engines.
Replace:
27-74830
27-896561
76270T 991551
99155A1 99155T1
99155T2
Sierra
18-3555
18-3568
OMC Johnson Evinrude
0508570
0508576
0508621
0508623
Crusader
96358
GLM
13040
Mallory
9-43001
9-43016
Mercruiser Stern Drive
991551
99155A1
99155T2
Temperature Rating: 160°F
Fits: 1998 & newer GM V-6 & V-8 engines with closed cooling
GLM
13040 |
Mallory
9-43001 |
9-43016 |
Mercruiser Stern Drive
991551 |
99155A1 |
22-806608A02 863444T1 Thermostat Housing for Mercury Mercruiser
Water Distribution Housing
Replace:
22-806608A02
863444T1
863631T1 Thermostat Housing for Mercury Mercruiser
Water Distribution Housing for Mercruiser 4.3 5.0 5.7 6.2 MPI
Replace:
863631T1
863802T2 Thermostat Housing for Mercury Mercruiser
Air Actuated (Closed Cool) Water distribution housing fits Mercury Marine 350 MAG MPI Alpha/Bravo?Horizion, 357 MAG MPI Bravo, 383 MAG Stroker, 4.3, 5.0, 5.7, 6.0 MPI MEI & Horizon engines.
Replace:
863802T2
18-3631 892864T04 Thermostat Housing for Mercury Mercruiser
Fits: 135-300 Verado
Includes thermostat and housing
Temperature Rating: 144°F
Replace:
Mercury Marine
892864T04
8M0174561
Sierra: 18-3631
Fits: 135-300 Verado
Includes thermostat and housing
Temperature Rating: 144°F
Mercury Marine
892864T04 |
8M0174561 |
18-3635 892864T06 Thermostat Housing with Clamp and O RING for Mercury Mercruiser
Fits 75-115HP (1B366823-2B094995) 150 EFI (1B905505 & Up)
Replace:
892864T06 with Clamp and O RING
Sierra: 18-3635
Mercury Marine
892864T06
Housing-Thermostat Inlcude one Clamp 2 O Ring (A06 120)
Fits: Mercury 75-115HP (1B366823-2B094995), 150 EFI (1B905505 & Up)
Mercury Marine
892864T06 |
8M0162139 8M0137816 Thermostat Housing for Mercury Mercruiser
Thermostat Housing Assembly 60°C / 175° fits most Mercury Outboards
Replace:
8M0162139 with clamp and Seal
8M0137816, 8M0162139
8M0095953 FITTING ASSEMBLY for Mercury Mercruiser
Mercruiser Fitting Assembly 4.5L MPI 250 Alpha Bravo Engine Motor Fitting Assembly NEW
Replace:8M0095953
22-8M0133716
22-863786A1 GLM13995 Exhaust Drain Valve for Mercury Mercruiser
Fit on: Mercruiser V6 & V8 Engines With Standard Cooling And With Dry Joint Exhaust Systems
Replace:
863786A1
22-863786A1 22-863786A 1 GLM13995
18920A1 Valve Assembly for Mercury Mercruiser
gear lube Reservoir Dribble Valve
Replace:
18920A1
18920A1 18920A 1
879150054 888624 THERMOSTAT ASSEMBLY for Mercury Mercruiser
2.0L I4 115-130HP DIESEL – 2.0L EI 115 2.0L I4 150-170HP DIESEL – 2.0L ES 150
2.0L I4 115-130HP DIESEL – 2.0L ES 130 2.0L I4 150-170HP DIESEL – 2.0L EI 150
CUMMINS/MERCRUISER DIESEL (QSD-2.0L) – CMD QSD 2.0 EI 130 2.0L I4 150-170HP DIESEL – 2.0L ES 170
2.0L I4 150-170HP DIESEL – 2.0L EI 170 2.0L I4 115-130HP DIESEL – 2.0L EI 130
CUMMINS/MERCRUISER DIESEL (QSD-2.0L) – CMD QSD 2.0 ES 170 CUMMINS/MERCRUISER DIESEL (QSD-2.0L) – CMD QSD 2.0 ES 130
CUMMINS/MERCRUISER DIESEL (QSD-2.0L) – CMD QSD 2.0 EI 150 CUMMINS/MERCRUISER DIESEL (QSD-2.0L) – CMD QSD 2.0 ES 150
Replace:
879150054
888624
8M0093561 879194215 39012036F THERMOSTAT ASSEMBLY for Mercury Mercruiser
Fits MerCruiser CMD QSD 2.8 EI/ES 170, 210, 220 & 230
Replace:
8M0093561
8M0093561
879194215
39012036F
Marine thermostat Factory
Welcome to our world-class marine thermostat manufacturing facility. We specialize in the design and production of high-quality thermostats for both Japanese and American outboard engines, as well as inboard engines. Our comprehensive product range includes thermostats for YAMAHA, Suzuki, Honda, and TOHATSU engines from Japan, as well as Mercury and OMC/Johnson/Evinrude OMC engines from the United States. Additionally, our inboard engine thermostats cater to Yanmar and Volvo engines, further demonstrating our diverse capabilities.
Manufacturing Process
MPC’s manufacturing process is enhanced by an advanced mold development capacity. Utilizing the latest technology and techniques, our expert team is capable of designing and creating molds with unparalleled precision. This advanced capability allows us to meet a wide range of specific manufacturing demands, ensuring each product we produce meets the highest standards of quality and design
Stamping Die Production: Our focus lies in the development of high-velocity, precision hardware dies, with an impressive annual R&D capacity of over 80 sets. Leveraging analytical tools such as pre-DFMEA and PFMEA, combined with our efficient R&D methodology, we accelerate the time-to-market for new products. This swift delivery not only enhances our competitive edge but also provides our clients with a significant market advantage.
Injection Mold Development: Our specialization extends to the development of precision injection molds. In order to ensure a seamless mold production process and uphold superior product quality, we collaborate with top-tier hot runner suppliers and use first-rate standard parts from industry-leading suppliers.
Processing Capability: Our capabilities are underscored by our array of industry-leading, high-precision equipment, including slow-feed wire-cut processing, electrical discharge machining, high-speed milling processing centers, optical curve grinding, and coordinate grinding. Our parts manufacturing process adopts a high-efficiency, high-precision standard workpiece clamping system, enabling seamless transition of processing references. This integrated approach ensures our production process remains at the pinnacle of the precision mold industry.
Stamping Die Production: Our focus lies in the development of high-velocity, precision hardware dies, with an impressive annual R&D capacity of over 80 sets. Leveraging analytical tools such as pre-DFMEA and PFMEA, combined with our efficient R&D methodology, we accelerate the time-to-market for new products. This swift delivery not only enhances our competitive edge but also provides our clients with a significant market advantage.
Injection Mold Development: Our specialization extends to the development of precision injection molds. In order to ensure a seamless mold production process and uphold superior product quality, we collaborate with top-tier hot runner suppliers and use first-rate standard parts from industry-leading suppliers.
Processing Capability: Our capabilities are underscored by our array of industry-leading, high-precision equipment, including slow-feed wire-cut processing, electrical discharge machining, high-speed milling processing centers, optical curve grinding, and coordinate grinding. Our parts manufacturing process adopts a high-efficiency, high-precision standard Processing Capability: workpiece clamping system, enabling seamless transition of processing references. This integrated approach ensures our production process remains at the pinnacle of the precision mold industry.
Inside Our Thermostat Manufacturing Facility
We invite you to experience the difference our devotion to excellence makes, and discover why MPC is the proven choice for yourself.
Shell Press
Salt spray test equipment
O-ring gasket test equipment
Mould Workshop
Machining Center
Laboratory Equipment
High and Low Temperature Test Equipment
Fully Automatic Assembly Equipment
3D Scanner
Certificates
Service & Support
From our skilled and dedicated production team to our responsive customer service, we strive to provide the highest level of service and support to our valued customers worldwide.
Fast Lead
An industry-leading delivery window of 7-10 days for all standard orders.
Customizable
Support of private labeling and specialized packaging
Transparency
Provide visual status updates through images and videos at key points for real-time order tracking
Worry-free
Provide 1-3 years of product warranty based on different marine parts.
Get a Quick Quote
Let us know the product you like, your requirements, or anything we can help with. You will receive our response with a price quote and lead time estimate by the next business day.
Our Advantages
What makes us Us ?
As a leading aftermarket marine parts supplier, we differentiate ourselves by our dedication to service, quality, and value. Our experienced team strives to provide exceptional support and the highest-quality thermostats designed specifically for optimal performance and durability in marine engines. With extensive testing, customized options, and competitive pricing, we aim to exceed expectations.
Our Mercury Mercruiser thermostats are extensively tested to meet OEM specifications for precise fit and reliable function. Key features include:
- 500 hours salt spray testing with no corrosion
- 20,000 cycle life test to ensure durability
- 1 year limited warranty against defects
As a Mercruiser parts distributor, you need thermostats engineered specifically for Mercruiser inboards to ensure proper temperature control. Our thermostats are manufactured using specialized tooling and processes to match OEM design, providing a direct replacement you can trust.
Our Mercruiser thermostats are produced in an ISO-certified factory using strict quality control. Extensive testing during and after production ensures they meet the highest standards to give your customers lasting value.
We provide a 1-year limited warranty against defects in materials and workmanship. This protects you from inventory loss due to quality issues. We stand behind our products.
We understand timely supply is critical for your business. We offer customizable delivery options via air/sea freight to meet your requirements, and can ship directly to your warehouses globally.
We aim to ship all in-stock orders within 1 week. For Made-to-Order requests, lead time is usually around 2-3 weeks. Our large inventory allows us to meet urgent needs promptly.
Absolutely, we offer custom printing/labeling on thermostat packaging and provide extra support like marketing materials to help promote our products through your business.