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Cooling Systems

Click HERE for a list of Water Hoses.

Water Pumps
Click HERE for Complete Water Pump Assemblies.
Click HERE for Water Pump Kits.

Closed (Fresh Water) Cooling Kits
For Sterndrive Engine Closed Cooling Kits click HERE
For Inboard Engine Closed Cooling Kits click HERE

Thermostat Kits
We recommend the use of Perfect Seal Sealant on all "paper-type" gaskets.
Do not use sealant on "composite" style gaskets.
Re-tighten thermostat housing bolts after use.

Kit Number Kit Photo Buy Now
59078T3 Thermostat Kit $19.00
140 Degree.
Fits MCM GM in-line 4 & 6 cyl Engines
Thermostat Kit
807252T5 Thermostat Kit $35.00
160 Degree
Fits 1987 and newer GM engines with
standard cooling.
Thermostat Kit
76270T1 Thermostat Kit NO LONGER SOLD
160 Degree
Fits 470/480 models
(s/n 6218036 and below)
Thermostat Kit
99155T2 Thermostat Kit $23.00
160 Degree
Fits MCM 470/488 & 3.7L Models
(s/n 6218037 and newer)
Thermostat Kit
807252T4 Thermostat Kit $40.00
140 Degree
Fits 1983 and newer GM V6 and V8 engines
with standard cooling (non-high perf)
Thermostat Kit
99155T1 Thermostat Kit $22.00
160 Degree
Fits GM V6 & V8 Engines
With closed cooling (1998 & newer)
Thermostat Kit
807252T3 Thermostat Kit $25.00
140 Degree
Fits 1982 and older Ford & GM V8 Engines
Standard Cooling and some closed cooled models
Thermostat Kit

Mercruiser Sterndrive Parts.
Pre-Alpha, R, MR and MC1 Parts
Alpha One Parts
Seal Kits
Alpha One Gimbal (Transom) Parts and Kits
Alpha Gen II Parts
Alpha Gen II Gimbal (Transom) Parts and Kits
Bravo One Parts
Bravo Two Parts
Bravo Three Parts
Bravo Gimbal (Transom) Parts and Kits
TR and TRS Parts
Transom Seal Kits
Gimbal Bearings
Shift Cable Kits
Gear Kits
Shift Interuptor Switch Kits
Anodes and Zinc Kits
Water Pump Kits
Power Trim Pump Kits and Trim System Parts
Decal Sets
Sterndrive Special Tools
Mercruiser shop Manuals
Remote Controls
Trim Sender Switches
Trim Cylinder Assemblies
Mercruiser Engine Parts
Filters and Filter Kits
Tuneup Kits
Carburetor Rebuild Kits
Raw Water Pump Kits
Circulation Water Pumps
Spark Plugs
Spark Plug Wire Kits
Gasket Sets
Exhaust Manifolds
Exhaust Elbows
Exhaust Riser Kits
Exhaust Water Shutter Kits
Ignition Modules and Ignition Coils
Cooling System Parts
Starter Motors
Alternators and Charging Systems
Belts and Belt-Pulley Kits
Drive Couplers
Fuel Pumps (Mechanical and Electric)
Wire Harnesses
Gauges and Instruments
Partial Engine Assemblies
Grease, Lubricants and Adhesives

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