Mercruiser fresh water cooling
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We sell fresh water cooling kits for all mercruiser engines. We also have freshwater
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Fresh water cooling is the best way to protect your mercruiser engine from corrosion.
Our mercruiser fresh water cooling kits come with every needed to install your new
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Fresh water cooling Mercruiser half system
Freshwater cooling system for 1985-1995 Mercruiser
4.3/5.0/5.7 - 262/305/350
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only
Front mount
Forward end of engine box cannot be tapered as the
heat exchanger is the same height as the air filter
extending out forward to the V-Belts
Freshwater Cooling Kit for Mercruiser 4.3/5.0/5.7ltr 262/305/350,
MC302
Fresh water cooling system for 1982 & up 4.3/5.0/5.7
Mercruiser marine engine
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only
Remote mount, string or deck mount
For tight installations with limited space
Freshwater cooling system for 1997-2001 5.7 EFI 350  
marine engine with MPI
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ serpentine belt
Fits inboards and V-drives - specify when ordering
Freshwater cooling system for 2000-2001 Mercruiser
4.3/5.0/5.7 EFI 350  marine engine
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ serpentine belt
On the EFI & carbureted engine, the alternator is located
on the starboard side
Freshwater cooling system for 1996 Merc.
Fits 350 Magnum MPI GEN+
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ V-belts
Freshwater cooling system for 1997-2001 Mercruiser
4.3/5.0/5.7  marine engine
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ serpentine belt
Fits model w/ port side alternator only
will not fit if vapor can is on stbd head.
Freshwater cooling system for 1994-1995 Alpha & Bravo
Mercruiser 5.7 EFI 350 engine with MPI
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners

Cools block only w/ V-belts
Freshwater cooling system for 1994-1996 Alpha & Bravo
Mercruiser 4.3/5.0/5.7  marine engine
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only with V-belts

May not fit some 1990-91, as head may not have threaded holes
for brackets. They can be drilled and taped on the engine.
Freshwater Cooling Kit for (1994-96) Mercruiser 4.3/5.0/5.7ltr,
Freshwater Cooling Kit for Mercruiser 4.3/5.0/5.7ltr, MC328OE
Freshwater Cooling Kit for Mercruiser 5.7ltr EFI 350, MC317
Freshwater Cooling Kit for Mercruiser 4.3/5.0/5.7ltr EFI
350,                                                                                                   MC331
Freshwater Cooling Kit for Mercruiser 4.3/5.0/5.7ltr, MC320
Freshwater Cooling Kit for Mercruiser 5.7ltr EFI 350, MC315
Freshwater cooling system for 1998-2001 Mercruiser
7.4 LX  with MPI
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ serpentine belt
Specify if Magnum and add $42.50. If 502 CID MPI other
parts needed add $45.00. Please call or email
2002 only! carb. w/o dry joint (raw water over top)
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only
2002-06 carb. w/dry joint (raw water over top)
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only
specify year       
2002-2008 MPI MAG specify if dry joint and year.
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners
Cools block only w/ serpentine belt
Freshwater Cooling Kit for Mercruiser 5.7ltr EFI 350, MC325
Freshwater Cooling Kit for Mercruiser 7.4ltr LX, MC323
Freshwater Cooling Kit for Mercruiser 7.4ltr MPI 454/502 MC329
Freshwater Cooling Kit for Mercruiser 5.7ltr Carb. 350 MC338
Freshwater Cooling Kit for Mercruiser 4.3, 5.0, 5.7 6.2ltr MPI 350, MC336
Freshwater Cooling Kit for Mercruiser 5.7ltr Carb. 350 MC340
Mercruiser fresh water cooling
half systems 4.3L-8.2L 1982-08
Freshwater cooling system for 1997 Mercruiser 7.4 LX  
marine engine with MPI
Kit includes: heat exchanger, mounts, gaskets,
thermostat, thermostat housing, hoses, hose clamps,
hose fittings, & fasteners

Cools block only w/ V-belts
"Full system" mercruiser Fresh
water cooling kits on next page
If you have ANY doubt
about your part # call
1-888-426-2841
Before ordering!
SE-MC302
$699.00
SE-MC320
$665.00
SE-MC315
$665.00
SE-MC313
$665.00
SE-MC3280E
$660.00
SE-MC325
$665.00
SE-MC317
$665.00
SE-MC331
$665.00
SE-MC323
$699.00
SE-MC329
$699.00
SE-MC340
$737.99
SE-MC338
$665.00
SE-MC336
$665.00
Add $105.dry joint
Click below for full systems
UPDATED 03/15/09