8M0045230 Mercruiser Heat Exchanger - 3.5 inch diameter

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Overview 8M0045230 Mercruiser Heat Exchanger - 3.5 inch diameter

This is Not an Original Equipment Manufacturer (OEM) Part.

Days to Ship: Ships Today

Note:If it says “Ships Today” Orders placed M-F before 4pm Eastern Time will ship the same day. Orders placed after 4pm and on weekends will ship out the next business day.

Offered is our replacement for the 8M0045230 Mercruiser Heat Exchanger- ID of appx 3.5" diameter with OD of about 3.75 inches.   This includes the heat exchanger, end caps with gaskets and the OEM seals that are used in the crossover.  This part is made with OEM equivalent materials and is guaranteed for fit and function. 

The seals tend to take a set or get a little brittle over time and you could end up with a glycol leak where the heat exchanger presses into the crossover if you try to re-use the existing seals.   The seal used is MRC-25-20295.  We supply new seals for each heat exchanger sold as part of the purchase.  In addition, each heat exchanger is made with a fixture and checked for fit prior to shipment to confirm that there will be no fit issues interfacing with the crossover. 

Some details to note:   

  • 8M0045230 is a 3.5 inch part -   
    • You are reading the advertisement for the 3.5 inch model.
    • a 3.5 inch ID (inner diameter) part has an OD that is approximately 3-3/4" to the outer diameter.  
    • The ID of the shell is very near 3.5 inches.

Part Number that this part replaces:

 Engines that this part goes on:  

  • 8.2L MAG
  • 8.2L MAG (H.O. and HO EC Model)
  • 8.2L MAG EC (Base Model)
  • 8.2L INBOARD (Base)
  • 8.2L INBOARD (H.O.) and HO EC
  • 540hp - 540
Made in America
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