MerCruiser 32-77245 470 W/O PS 170hp 3.7L Heat Exchanger Cooling Hoses Set 83-89

• Removed from a 1983-1989 MerCruiser 470 NON-POWER STEERING (w/ 4" diameter heat exchanger)
  • The complete set of hoses were found on MerCruiser 4-cyl "470" models using the 4" heat exchanger and either cast iron or aluminum version of updated exhaust manifold.
  • Not for the 1976-1982 earlier versions with the 3" heat exchangers.
  • • Check with parts manual or ask if you have any questions.
• Freshwater Used Parts
• Hoses are in decent condition, great idea to have a spare set or use as a replacement.
• All appropriate hose clamps included as pictured

• 32-89654 / 32-99729 Exhaust Manifold To Heat Exchanger
  • These two part numbers are effectively interchangeable even though they don't directly supersede
• 32-77245 Heat Exchanger to Thermostat Housing
• 32-89655 Intake manifold hose
• 32-76326 Intake Manifold to water pump Hose
• 32-89653 Cylinder Head To Exhaust Manifold
• 32-99520 Heat Exchanger to Regulator
• "32-33220 70" Riser Elbow to Heat Exchanger
  • This is the straight piece of hose that goes in place of where a power steering cooler would typically be installed.
  • In the parts manual this is just effectively referenced as bulk hose.

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1983 1984 1985 1986 1987 1988 1989 Alpha One 470 4-cyl 165hp 170hp 180hp 190hp 3.7L 3.7LX 224CID 488 485 Sterndrive