Cooling System
Keep your MerCruiser engine operating at the proper temperature with genuine Mercury MerCruiser Cooling System parts. Shop water pump kits, impellers, thermostats, circulating pumps, seawater pump components, housings, gaskets, seals, and other OEM replacement parts designed for Alpha, Bravo, and inboard MerCruiser applications. Genuine MerCruiser cooling system components are engineered for reliable performance, proper engine cooling, and long service life.
Not sure which cooling system parts fit your engine? Contact our team with your engine serial number for assistance confirming compatibility.
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Mercury/Quicksilver Exhaust Elbow to Manifold Gasket 8M2004414
Quicksilver
MSRP: $65.49$55.67Mercury / Quicksilver Exhaust Elbow to Manifold Gasket 8M2004414 Genuine Quicksilver exhaust elbow to manifold gasket designed for select 2008 and newer MerCruiser V6 and V8 sterndrive and inboard...8M2004414- SKU:
- 8M2004414
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.32 Ounces
MSRP: $65.49$55.67 -
Mercury Gasket (Thermostat) 8M0238323
Mercury
MSRP: $10.20$8.67Mercury Thermostat Gasket, GM V6 & V8 2-Piece Thermostat Housing 8M0238323 is a genuine OEM replacement gasket designed for older-style 2-piece thermostat housings on compatible MerCruiser MCM and...8M0238323- SKU:
- 8M0238323
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.05 Ounces
MSRP: $10.20$8.67 -
Quicksilver Water Shutter (MerCruiser Sterndrives) 60930
Quicksilver
MSRP: $42.49$36.12The Quicksilver Water Shutter 60930 is a genuine Quicksilver OEM replacement exhaust water shutter, also known as a water flapper, designed for numerous MerCruiser sterndrive applications. It helps...60930- SKU:
- 60930
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.13 Ounces
MSRP: $42.49$36.12 -
Quicksilver Water Pump Impeller (Various Outboards & MerCruiser Sterndrives) 43026T2
Quicksilver
MSRP: $36.49$31.02Quicksilver Water Pump Impeller (Various Mercury Outboards & MerCruiser Sterndrives) 43026T2 Maintain proper engine cooling and protect your investment with this genuine Quicksilver water pump...43026T2- SKU:
- 43026T2
- Availability:
- Usually Ships within 24hours
- Weight:
- 2.08 Ounces
MSRP: $36.49$31.02 -
Mercury Thermostat Housing Kit 879330T39
Mercury
MSRP: $1,913.80$1,626.73Mercury Thermostat Housing Kit 879330T39 is an OEM replacement thermostat housing used in the cooling system on select high-performance MerCruiser and Mercury Racing marine engines.879330T39- SKU:
- 879330T39
- Availability:
- Usually Ships within 24hours
- Weight:
- 68.80 Ounces
MSRP: $1,913.80$1,626.73 -
Mercury 4.2L V8 TDI Thermostat 8M0086400
Mercury
MSRP: $1,243.99$1,057.39Mercury Thermostat 8M0086400 is an OEM replacement thermostat for select Mercury MerCruiser 4.2L V8 TDI diesel engines. It regulates coolant flow through the engine cooling system to help maintain...8M0086400- SKU:
- 8M0086400
- Availability:
- Usually Ships within 24hours
- Weight:
- 12.80 Ounces
MSRP: $1,243.99$1,057.39 -
Quicksilver Fuel Pump Cooler Kit (MerCruiser V6 & V8 Engines) 8M0125846
Quicksilver
MSRP: $1,079.99$917.99The Quicksilver Fuel Pump Cooler Kit (MerCruiser V6 & V8 Engines) 8M0125846 is a genuine Quicksilver OEM fuel system component designed for select MerCruiser sterndrive and inboard engines...8M0125846- SKU:
- 8M0125846
- Availability:
- Usually Ships within 24hours
- Weight:
- 60.80 Ounces
MSRP: $1,079.99$917.99 -
Quicksilver Fuel Pump/Cooler Kit (MerCruiser MPI V6 & V8 Engines) 8M0125852
Quicksilver
MSRP: $1,071.49$910.77The Quicksilver Fuel Pump/Cooler Kit (MerCruiser MPI V6 & V8 Engines) 8M0125852 is a genuine Quicksilver OEM fuel system kit designed for select MerCruiser EFI sterndrive and inboard engines...8M0125852- SKU:
- 8M0125852
- Availability:
- Usually Ships within 24hours
- Weight:
- 59.76 Ounces
MSRP: $1,071.49$910.77 -
Mercury Thermostat Housing 879194187
Mercury
MSRP: $1,027.49$873.37Mercury Thermostat Housing 879194187 is an OEM replacement cooling system component for select Cummins MerCruiser Diesel (CMD) QSD 2.8L and 4.2L engines. Mercury parts listings identify this part...879194187- SKU:
- 879194187
- Availability:
- Usually Ships within 24hours
- Weight:
- 78.40 Ounces
MSRP: $1,027.49$873.37 -
Mercury Thermostat Housing Kit 90736A24
Mercury
MSRP: $888.49$755.22Mercury Thermostat Housing Kit 90736A24 is an OEM replacement cooling system kit for select MerCruiser GM big-block V8 engines. Mercury issued this kit as the replacement for earlier thermostat...90736A24- SKU:
- 90736A24
- Availability:
- Usually Ships within 24hours
- Weight:
- 184.75 Ounces
MSRP: $888.49$755.22 -
Mercury Thermostat Housing Kit 879172210
Mercury
MSRP: $603.49$512.97Mercury Thermostat Housing Kit 879172210 is an OEM replacement cooling system component for select Cummins MerCruiser Diesel (CMD) 4.2L marine engines. It replaces earlier thermostat housing...879172210- SKU:
- 879172210
- Availability:
- Usually Ships within 24hours
- Weight:
- 64.00 Ounces
MSRP: $603.49$512.97 -
Mercury Rebuild Kit, Upper Water Pump (Alpha One Gen II & Vazer) 817275K05
Mercury
MSRP: $218.49$185.49Mercury Rebuild Kit, Upper Water Pump (Alpha One Gen II & Vazer) 817275K05 is a genuine OEM service kit designed for MerCruiser Alpha One Gen II and Vazer sterndrives. Replacing worn water pump...817275K05- SKU:
- 817275K05
- Availability:
- Usually Ships within 24hours
- Weight:
- 22.00 Ounces
MSRP: $218.49$185.49 -
Mercury Sea Water Pump Body & Impeller Kit, 2-Piece Plastic Pump 72774A89
Quicksilver
MSRP: $193.49$164.47Mercury Sea Water Pump Body & Impeller Kit, 2-Piece Plastic Pump 72774A89 is a genuine Mercury/Quicksilver OEM repair kit designed for compatible MerCruiser engines equipped with a 2-piece plastic...72774A89- SKU:
- 72774A89
- Availability:
- Usually Ships within 24hours
- Weight:
- 16.10 Ounces
MSRP: $193.49$164.47 -
Mercury Mercruiser Water Pump Body & Impeller Kit, Engine-Mounted Pump 807151A14
Quicksilver
MSRP: $145.49$123.67Mercury Sea Water Pump Body & Impeller Kit, Engine-Mounted Pump 807151A14 is a genuine Mercury/Quicksilver OEM service kit designed for MerCruiser engines equipped with an engine-mounted sea water...807151A14- SKU:
- 807151A14
- Availability:
- Usually Ships within 24hours
- Weight:
- 31.68 Ounces
MSRP: $145.49$123.67 -
Mercury PLATE-THERMOSTAT OEM 8M0180926
Mercury
MSRP: $131.99$112.19Genuine Mercury PLATE-THERMOSTAT, part number 8M0180926. Designed for use with compatible applications.8M0180926- SKU:
- 8M0180926
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.91 Ounces
MSRP: $131.99$112.19 -
Mercury Water Pump Impeller Kit 879194186
Mercury
MSRP: $104.99$89.24Mercury Water Pump Impeller Kit 879194186 is a genuine OEM replacement kit designed to restore proper cooling system performance on compatible Mercury and MerCruiser applications. Replacing the water...879194186- SKU:
- 879194186
- Availability:
- Usually Ships within 24hours
- Weight:
- 7.50 Ounces
MSRP: $104.99$89.24 -
Mercury Heavy Duty Water Pump Impeller Kit, 4.5L & 6.2L MerCruiser 8M0137220
Quicksilver
MSRP: $102.49$87.12Mercury Heavy Duty Water Pump Impeller Kit, 4.5L & 6.2L MerCruiser 8M0137220 is a genuine Mercury/Quicksilver OEM service kit designed for compatible 4.5L and 6.2L MerCruiser engines. Replacing the...8M0137220- SKU:
- 8M0137220
- Availability:
- Usually Ships within 24hours
- Weight:
- 9.44 Ounces
MSRP: $102.49$87.12 -
Mercury HOSE-72 INCH OEM 9884339
Mercury
MSRP: $97.99$83.29Genuine Mercury HOSE-72 INCH, part number 9884339. Designed for use with compatible applications.9884339- SKU:
- 9884339
- Availability:
- Usually Ships within 24hours
- Weight:
- 15.84 Ounces
MSRP: $97.99$83.29 -
Mercury Water Pump Impeller Kit, Heavy Duty 4.5L & 6.2L MerCruiser 8M0137221
Quicksilver
MSRP: $82.99$70.54Mercury Heavy Duty Water Pump Impeller Kit, 4.5L & 6.2L MerCruiser 8M0137221 is a genuine Mercury/Quicksilver OEM service kit designed for compatible 4.5L and 6.2L MerCruiser engines. Replacing the...8M0137221- SKU:
- 8M0137221
- Availability:
- Usually Ships within 24hours
- Weight:
- 8.96 Ounces
MSRP: $82.99$70.54 -
Mercury Water Separating Fuel Filter Kit (High-Capacity) 8M0082291
Mercury
MSRP: $80.49$68.49The Mercury High-Capacity Water Separating Fuel Filter Kit 8M0082291 is a genuine Mercury OEM fuel filtration system designed to deliver high-volume fuel flow for a wide range of marine applications...8M0082291- SKU:
- 8M0082291
- Availability:
- Usually Ships within 24hours
- Weight:
- 43.20 Ounces
MSRP: $80.49$68.49
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