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Freshwater Cooling Kit, Mercruiser 4.3 liter LXH, MC319

Freshwater Cooling Kit, Mercruiser 4.3 liter LXH, MC319
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Freshwater Cooling Kit, Mercruiser 4.3 liter LXH, MC319 for 1996-1999 Mercruiser 4.3 LXH Chevrolet marine engine.

  • Freshwater cooling system for 1996-1999 Mercruiser 4.3 LXH Chevrolet marine engine
  • Kit includes: heat exchanger, mounts, gaskets,thermostat housing, hoses, hose clamps, hose fittings, & fasteners
  • Fits GEN+ one piece manifold ONLY w/ serpentine belt
  • Cools block only
  • Will not fit EFI. For EFI substitute MC320
If using riser extensions please check accessories. Riser extension kit may be required.

Part No. Mfr No. Description Fits Cooling Unit Leaves Warehouse* List Price
Your Price
Freshwater Engine Cooling Kit, Mercruiser 4.3 liter LXH, MC319
89235 MC319 Cooling Kit 4.3 LXH CHEV Block Only
Not Currently Available
* Leaves Warehouse: Does not include Weekends and Holidays.
When will my order arrive? Add the Estimated Leaves Warehouse Time + Estimated Shipping Time.
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Additional Description
All "San Juan Freshwater Cooling Systems" are built with the best pure copper and silver alloys. Systems are designed for compact installation and do not increase the height, width, or length of the overall engine dimensions, allowing for installation in most existing engine compartments. All kits come complete, including step-by-step instructions, no special tools are required.

San Juan Engineering Kits were designed to fit on the original factory equipped engine. Any changes or alternations in the engine may result in the heat exchanger and/or parts, requiring some adaptation to complete installation.

Accessories, Related Items, Spare Parts, ...

Riser Extension Kit w/ Fittings

Riser Extension Kit w/ Fittings

Mfr. San Juan Engineering | Mfr No. Riser Extension Kit with Fitting

Used with above Part#: All
Not Currently Available

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Review and FAQ Center

how does it work?

How does this exchanger works? How come I don’t see coolant… when I open the the pressure cap?


Fill the heat exchanger with water and run the boat. If the level goes down even the slightest you have a leak in the heat exchanger and it needs to be replaced. If it needs to be replaced, we can get you a replacement.

Submitted by: joe

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pid: 89235F