• This is a dual purpose Heat Exchanger and oil cooler for the 4.2L diesel for all years the engine was manufactured.
  • This offer includes the heat exchanger, end caps with gaskets and zinc.  
  • This part is made with OEM equivalent materials and is guaranteed for fit and function.
  • This is a drop in replacement.  The part pictured is one that we make. 

 Some details to note:   

• We have replicated the mounting castings and CNC machine the threaded fittings to assure they fit as with the OEM version of this part. 

• 5 inch cooling tank with a squared off surge tank as with the OEM.

• 2.5 inch oil cooler on the bottom with fittings in the proper locations to assure ease of installation. 

Our product is a drop in replacement for these part numbers:

• VM Motori 31212003
• VM Motori 31212003CN
• Mercruiser 807261
• Mercruiser 8M00071811

This part fits the following engines (possibly more):

• Fits the 4.2L diesel for all years the engine was manufactured.
  • VM Motori MD706MH 
  • VM Motori MD706LI 4.2L 250HP Mercruiser 
  • VM Motori 694 HIM 22 4.2L 220 HP Mercruiser