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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Quicksilver Ignition Wire Kit (V6 MerCruiser Thunderbolt IV) 816761Q16
Quicksilver
MSRP: $80.49$68.42Quicksilver Ignition Wire Kit (V6 MerCruiser Thunderbolt IV) 816761Q16 is a genuine OEM replacement spark plug wire set designed for V6 MerCruiser engines equipped with Thunderbolt IV ignition...816761Q16- SKU:
- 816761Q16
- Availability:
- Usually Ships within 24hours
- Weight:
- 21.74 Ounces
MSRP: $80.49$68.42 -
Mercury Water Pump Repair Kit, 65HP-225HP Outboards & Alpha Sterndrives 96148Q8
Quicksilver
MSRP: $74.99$63.74Mercury Water Pump Repair Kit, 65HP-225HP Outboards & Alpha Sterndrives 96148Q8 is a genuine Mercury/Quicksilver OEM service kit designed for a wide range of Mercury and Mariner outboards and...96148Q8- SKU:
- 96148Q8
- Availability:
- Usually Ships within 24hours
- Weight:
- 10.37 Ounces
MSRP: $74.99$63.74 -
Mercury Water Pump Repair Kit, 65HP Outboards & Alpha Sterndrives 89984T5
Mercury
MSRP: $69.49$58.99Mercury Water Pump Repair Kit, 65HP Outboards & Alpha Sterndrives 89984T5 is a genuine OEM service kit designed for compatible Mercury and Mariner 65HP 4-cylinder outboards and MerCruiser I, R, MR,...89984T5- SKU:
- 89984T5
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.64 Ounces
MSRP: $69.49$58.99 -
Mercury/Quicksilver Fuel & Water Separating Filter Assembly 802893Q4
Quicksilver
MSRP: $65.49$55.67Mercury/Quicksilver Fuel & Water Separating Filter Assembly 802893Q4 Genuine Quicksilver fuel and water separating filter assembly designed for Mercury, Mariner, and Force outboards plus MerCruiser...802893Q4- SKU:
- 802893Q4
- Availability:
- Usually Ships within 24hours
- Weight:
- 30.45 Ounces
MSRP: $65.49$55.67 -
Mercury Sea Water Pump Impeller Kit, Engine-Mounted Sea Water Pump 59362T6
Quicksilver
MSRP: $65.49$55.67Mercury Sea Water Pump Impeller Kit, Engine-Mounted Sea Water Pump 59362T6 is a genuine Mercury/Quicksilver OEM service kit designed for compatible MerCruiser engines equipped with a one-piece...59362T6- SKU:
- 59362T6
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.40 Ounces
MSRP: $65.49$55.67 -
Mercury Sea Water Pump Impeller Kit, Bravo I, II & III 59362A4
Quicksilver
MSRP: $64.49$54.82Mercury Sea Water Pump Impeller Kit, Bravo I, II & III 59362A4 is a genuine Mercury/Quicksilver OEM service kit designed for MerCruiser Bravo I, Bravo II, and Bravo III sterndrives equipped with a...59362A4- SKU:
- 59362A4
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.34 Ounces
MSRP: $64.49$54.82 -
Mercury Thermostat Kit, 140°F (MerCruiser V6 & V8) 807252T4
Mercury
MSRP: $62.99$53.49Mercury Thermostat Kit, 140°F (MerCruiser V6 & V8) 807252T4 is a genuine Mercury/Quicksilver OEM replacement kit designed for compatible MerCruiser sterndrive and inboard engines with standard...807252T4- SKU:
- 807252T4
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.00 Ounces
MSRP: $62.99$53.49 -
Mercury Thermostat Kit (120 Degrees) OEM 14586A3
Mercury
MSRP: $60.99$51.84The Mercury Thermostat Kit (120 Degrees) 14586A3 is a genuine Mercury OEM replacement thermostat kit designed for select Mercury and MerCruiser applications. This 120-degree thermostat kit helps...14586A3- SKU:
- 14586A3
- Availability:
- Usually Ships within 24hours
- Weight:
- 1.01 Ounces
MSRP: $60.99$51.84 -
Mercury Thermostat Kit, 140°F (MerCruiser V6 & V8) 807252Q4
Quicksilver
MSRP: $57.49$48.87Mercury Thermostat Kit, 140°F (MerCruiser V6 & V8) 807252Q4 is a genuine Mercury/Quicksilver OEM replacement thermostat designed for compatible MerCruiser V6 and V8 engines with standard cooling...807252Q4- SKU:
- 807252Q4
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.00 Ounces
MSRP: $57.49$48.87 -
Mercury Water Pump Impeller Kit, V6 & V8 Brass Sea Water Pump 8M0137219
Mercury
MSRP: $55.49$47.17Mercury Water Pump Impeller Kit, V6 & V8 Brass Sea Water Pump 8M0137219 is a genuine Mercury/Quicksilver OEM service kit designed for compatible MerCruiser V6 and V8 engines equipped with a brass sea...8M0137219- SKU:
- 8M0137219
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.64 Ounces
MSRP: $55.49$47.17 -
Mercury Water Temperature Sender (1/8-Inch 27 NPT Threads) 12415
Mercury
MSRP: $54.49$46.32The Mercury Water Temperature Sender (1/8-Inch 27 NPT Threads) 12415 is a genuine Mercury OEM replacement sender designed for select Mercury and MerCruiser applications. This water temperature sender...12415- SKU:
- 12415
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.50 Ounces
MSRP: $54.49$46.32 -
Mercury Water Pump Impeller Kit, V6 & V8 MerCruiser Sterndrive 8M0104229
Quicksilver
MSRP: $52.49$44.62Mercury Water Pump Impeller Kit, V6 & V8 MerCruiser Sterndrive 8M0104229 is a genuine Mercury/Quicksilver OEM service kit designed for compatible V6 and V8 MerCruiser sterndrives. Replacing the water...8M0104229- SKU:
- 8M0104229
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.68 Ounces
MSRP: $52.49$44.62 -
Mercury Thermostat Kit, 160°F (GM MerCruiser V6 & V8) 807252T5
Mercury
MSRP: $51.49$43.99Mercury Thermostat Kit, 160°F (GM MerCruiser V6 & V8) 807252T5 is a genuine Mercury/Quicksilver OEM replacement kit designed for compatible General Motors-based MerCruiser sterndrive and inboard...807252T5- SKU:
- 807252T5
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.00 Ounces
MSRP: $51.49$43.99 -
Quicksilver Distributor Cap & Rotor Kit (Thunderbolt IV & V HEI Ignition) 815407Q5
Quicksilver
MSRP: $48.99$41.64Maintain reliable ignition performance with the Quicksilver Distributor Cap & Rotor Kit 815407Q5. This genuine OEM replacement kit is designed for General Motors-based MerCruiser engines equipped...815407Q5- SKU:
- 815407Q5
- Availability:
- Usually Ships within 24hours
- Weight:
- 10.00 Ounces
MSRP: $48.99$41.64 -
Mercury Gen III Water Separating Fuel Filter Disc 8M0204703
Quicksilver
MSRP: $47.49$40.37Mercury Water Separating Fuel Filter Disc 8M0204703 is sold under the Quicksilver brand, Mercury Marine's line of replacement parts and accessories. This replacement filter element is designed for...8M0204703- SKU:
- 8M0204703
- Availability:
- Usually Ships within 24hours
- Weight:
- 1.04 Ounces
MSRP: $47.49$40.37 -
Mercury Thermostat Kit, 160°F (MerCruiser V6 & V8) 807252Q5
Quicksilver
MSRP: $46.99$39.94Mercury Thermostat Kit, 160°F (MerCruiser V6 & V8) 807252Q5 is a genuine Mercury/Quicksilver OEM replacement thermostat designed for compatible GM-based MerCruiser V6 and V8 engines with standard...807252Q5- SKU:
- 807252Q5
- Availability:
- Usually Ships within 24hours
- Weight:
- 4.00 Ounces
MSRP: $46.99$39.94 -
Mercury Thermostat Kit, 160°F (GM MerCruiser V6 & V8 Closed Cooling) 99155T1
Quicksilver
MSRP: $42.49$36.12Mercury Thermostat Kit, 160°F (GM MerCruiser V6 & V8 Closed Cooling) 99155T1 is a genuine Mercury/Quicksilver OEM replacement kit designed for compatible General Motors-based MerCruiser V6 and V8...99155T1- SKU:
- 99155T1
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.68 Ounces
MSRP: $42.49$36.12 -
Mercury Thermostat, 160°F (GM MerCruiser V6 & V8 Closed Cooling) 991551
Quicksilver
MSRP: $41.49$35.27Mercury Thermostat, 160°F (GM MerCruiser V6 & V8 Closed Cooling) 991551 is a genuine Mercury/Quicksilver OEM replacement thermostat designed for compatible General Motors-based MerCruiser V6 and V8...991551- SKU:
- 991551
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.04 Ounces
MSRP: $41.49$35.27 -
Mercury Thermostat, 160°F (MerCruiser 496 Magnum, 496 HO & 8.1L) 8M0076464
Quicksilver
MSRP: $40.99$34.84Mercury Thermostat, 160°F (MerCruiser 496 Magnum, 496 HO & 8.1L) 8M0076464 is a genuine Mercury/Quicksilver OEM replacement thermostat designed for compatible MerCruiser sterndrive and inboard...8M0076464- SKU:
- 8M0076464
- Availability:
- Usually Ships within 24hours
- Weight:
- 2.88 Ounces
MSRP: $40.99$34.84 -
Mercury Thermostat Kit, 140°F (Early MerCruiser V8 & High Performance) 807252T3
Mercury
MSRP: $39.99$33.99Mercury Thermostat Kit, 140°F (Early MerCruiser V8 & High Performance) 807252T3 is a genuine Mercury/Quicksilver OEM replacement kit designed for compatible MerCruiser sterndrive and inboard engines...807252T3- SKU:
- 807252T3
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.74 Ounces
MSRP: $39.99$33.99
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