Due to the ongoing over-demand versus supply challenges, but in an effort to continue being able to supply a limited number of these products Monitor Products is currently NOT painting any of our Fresh Water Cooling system products. This will not affect the life expectation of the products, but we do still recommend them to be painted by the customer before installation.



Our conversion kits are manufactured with the same quality and precision that is maintained for our O.E.M. customers such as Mercruiser, Mercury Racing, Westerbeke, Yanmar, Volvo and more.

High Quality Marine Materials

We use only the highest quality materials specified by marine standards. We pride ourselves on our 6-pass high performance divider system that allows cooling water to flow six times through the heat exchanger rather than the standard four times. This creates more efficient cooling in a smaller package.

Increased Cooling Capacity

All of our kits use a higher tube count, which increases cooling capacity. Over time all heat exchangers will accumulate marine debris and this will help compensate for that.

Achieve Running Temperature Faster

Most of our kits come with a thermostat-controlled by-pass which will allow the engine to achieve proper running temperature faster. It will also maintain proper flow through the system at all times unlike the standard by-pass.

All kits are neatly packed with complete illustrated Installation Instructions. The kits also come with a General Maintenance Manual including trouble-shooting and everything needed for installation, giving the customer a professional complete package.