Standard Block and Exhaust Manifold Freshwater Cooling Kit for a 1982-1998 V-8 MerCruiser GM Engine

Product Image Display
Product Code
MFH-5399
Weight
44.00
Price
$1211.00
The MFH-5399 Freshwater Cooling Kit fits 1982-1998 MerCruiser GM 5.0L and 5.7L (305 and 350 CID) models (see below for exceptions).
 
This Heat Exchanger utilizes a copper alloy high performance 6-pass shell and tube design that delivers superior cooling in an efficient and compact package.  It has dual removable end covers for easy clean-out. The Installation Kit includes heavy-duty translucent plastic expansion tank, complete instructions, and all other components necessary to convert a raw water cooled engine to Freshwater Cooling. Some existing water hoses and hose clamps are reused. Heat exchanger, thermostat housing and mounting brackets are primed gray. Fasteners are zinc/cadmium plated or stainless steel. All hose clamps are stainless steel.
 
 
SPACE REQUIREMENTS:

space requirements

 

COOLING SYSTEM TYPE:
This kit is a "full" fresh water cooling [FWC] system; meaning that the engine block and exhaust manifolds are protected by the system.  Exhaust elbows remain on the raw water system.  System utilizes a  unique, high performance heat exchanger.  Our FWC systems are specially designed for the low capacity raw water pumps used on sterndrive engines. 

 

COOLING SYSTEM CAPACITY:

Will maintain coolant temperatures in the 160-170oF range using 160oF thermostat included in kit.  System has cooling capacity safety margin higher than industry standards.

 

HEATER SYSTEM HOOKUP:

Heaters such as galley water heaters and cabin heaters are easily supplied by utilizing the cooling system bypass connections.

 

INSTALLATION TIME:

Average installation time is approximately four to six hours, assuming engine has normal accessibility.  Allow additional time for filling and testing. Installation skills are typical of most do-it-yourself boat  owners.  Complete illustrated installation instructions are included in kit.

 

WARRANTY:
Two year warranty. For complete details see Limited Warranty for Fresh Water Cooling Kits document enclosed with your kit and located on policies page of our website.

 

PRICE:
Trade and volume discounts available. Buy through your dealer or direct using Visa, MasterCard, Amex, UPS COD, or Money order.

 

MFH-5399 CONVERSION KIT FITS:
MerCruiser Engines:

200 (2BBL.) GM 305 V-8 1985 - 1986 (S/N# 6218462 - 0B525981)
200 (2BBL.) GM 305 V-8 1987 (S/N# 0B525982 - 0B774444)
228 (4BBL.) GM 305 V-8 1982 - 1984 (S/N# 6218462 - 0B525981)
230 (4BBL.) GM 305 V-8 1985 - 1986 (S/N# 6218462 - 0B525981)
230 (4BBL.) GM 305 V-8 1987 (S/N# 0B525982 - 0B773739)
230 MIE (4BBL.) GM 305 V-8 1981 - 1986 (S/N# 5907058 - 0B522505)
230 MIE (4BBL.) GM 305 V-8 1987 - 1995 (S/N# 0B522506 - 0B788151)
260 (2BBL.) GM 350 V-8 1982 - 1986 (S/N# 6218462 - 0B525981)
260 (2BBL.) GM 350 V-8 1987 (S/N# 0B525982 - 0B773304)
260 MIE GM 350 V-8 1981 - 1986 (S/N# 5907058 - 0B522505)
260 MIE GM 350 V-8 1981 - 1987 (S/N# 0B522506 - 0B788196)
350 MAG ALPHA (4BBL.) GM 350 V-8 1996 (S/N# 0F601000 - 0K001526)
350 MAG ALPHA (4BBL.) GM 350 V-8 1997 (S/N# 0K001527 - 0K999999)
350 MAG ALPHA EFI (GEN+) GM 350 V-8 1996 (S/N# 0F800300 - 0K001508)
350 MAG ALPHA EFI (GEN+) GM 350 V-8 1997 (S/N# 0K001509 - UP)
350 MAG ALPHA GM 350 V-8 1986 - 1987 (S/N# 0A635178 - 0B525981)
350 MAG ALPHA GM 350 V-8 1987 - 1995 (S/N# 0B525982 - 0F600999)
5.0L (2BBL.) GM 305 V-8 1988 - 1995 (S/N# 0B774445 - 0F600999)
5.0L (2BBL.) GM 305 V-8 1998 - 2001 (S/N# 0L015751 - 0M599999)
5.0L EFI GM 305 V-8 1998 (S/N# 0L012052 - 0L331630)
5.0L EFI GM 305 V-8 1998 (S/N# 0L331651 - 0L339999)
5.0L EFI GM 305 V-8 1999 - 2001 (S/N# 0L331631 - 0L331650)
5.0L EFI GM 305 V-8 1999 - 2001 (S/N# 0L340000 - 0M299999)
5.0L EFI GM 350 V-8 1999 - 2001 (S/N# 0L325977 - 0L325999)
5.0L EFI GM 350 V-8 1999 - 2001 (S/N# 0L331599 - 0L331991)
5.0L EFI GM 350 V-8 1999 - 2001 (S/N# 0L335716 - 0L335999)
5.0L EFI GM 350 V-8 1999 - 2001 (S/N# 0L340000 - 0M299999)
5.0L MIE (4BBL.)GM 305 V-8 1987 - 1995 (S/N# 0B522506 - 0B788151)
5.0LX (4BBL.) GM 305 V-8 1988 - 1995 (S/N# 0B773740 - 0F600999)
5.7 LX EFI (4BBL. - TBI) GM 350 V-8 1996 (S/N# 0F752400 - 0K001505)
5.7 LX EFI (4BBL. - TBI) GM 350 V-8 1997 (S/N# 0K001506 - 0K999999)
5.7 MIE GM 350 V-8 1997 (S/N# 0K040307 - 0K999999)
5.7L (2BBL.) GM 350 V-8 1988 - 1995 (S/N# 0B525982 - 0F600999)
5.7L (2BBL.) GM 350 V-8 1996 (S/N# 0F601000 - 0K001526)
5.7L (2BBL.) GM 350 V-8 1997 (S/N# 0K001527 - 0K999999)
5.7L (2BBL.) GM 350 V-8 1998 - 2001 (S/N# 0L010037 - 0M599999)
5.7L ALPHA EFI (TBI) GM 350 V-8 1995 (S/N# 0F355305 - 0F752389)
5.7L BRAVO EFI (TBI) GM 350 V-8 1995 (S/N# 0F225560 - 0F752399)
5.7L EFI (2BBL. - TBI) GM 350 V-8 1996 (S/N# 0F752400 - 0K001505)
5.7L EFI (2BBL. - TBI) GM 350 V-8 1997 (S/N# 0K001506 - 0K999999)
5.7L EFI GM 350 V-8 1998 (S/N# 0L010035 - 0L325976)
5.7L EFI GM 350 V-8 1998 (S/N# 0L326000 - 0L331598)
5.7L EFI GM 350 V-8 1998 (S/N# 0L331992 - 0L335715)
5.7L EFI GM 350 V-8 1998 (S/N# 0L336000 - 0L339999)
5.7L EFI MIE GM 350 V-8 1997 (S/N# 0K040300 - 0K261160)
5.7L MIE GM 350 V-8 1988 - 1993 (S/N# 0B788197 - 0F024999)
5.7L MIE GM 350 V-8 1994 - 1995 (S/N# 0F025000 - 0F622099)
5.7L MIE GM 350 V-8 1994 - 1995 (S/N# 0622151 - 0F746099)
5.7L MIE GM 350 V-8 1996 (S/N# 0F622100 - 0F622150)
5.7L MIE GM 350 V-8 1996 (S/N# 0F746100 - 0K040306)
5.7LX (4BBL.) GM 350 V-8 1996 (S/N# 0F601000 - 0K001526)
5.7LX (4BBL.) GM 350 V-8 1997 (S/N# 0K001527 - 0K999999)
5.7LX BRAVO EFI (GEN+) GM 350 V-8 1996 (S/N# 0F800300 - 0K001508)
5.7LX BRAVO EFI (GEN+) GM 350 V-8 1997 (S/N# 0K001509 - UP)
898 (2BBL.) GM 305 V-8 1983 - 1984 (S/N# 6218462 - 0B525981)
 
Note: Some engines have fuel line routing and fuel filter location that must be changed slightly.

 

May also fit custom marine conversions:
  • With v-belt or multi-belt equipped engines.(will not fit serpentine belt equipped engines)
  • Sterndrive and Inboard engines only. (will not fit V-drive installations)
  • Kit fits engines with low mounted alternato