Chevrolet/GMC 6.5L PMD Isolation Kit
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Heath's PMD Isolator System is a complete relocation kit that includes everything you need for the installation, including a new module. The PMD Isolator System comes ready to bolt on, has a resistor pre-installed, and an extension harness to relocate it to the front skid plate. The PMD Module is pre-mounted to the heat sink plate with Heath's special mounting process, and the extension harness is already plugged in and ready to go. The PMD Isolator System is the original PMD Isolator, and has been providing great reliability since 1994.
We see many imitators relocating the PMD from the pump to other places under the hood. This serves no purpose as the PMD is still subjected to the "under the hood" heat source- the engine. To add to that, the heat sink they mount to the "relocated" PMD does as much or more to absorb heat than remove it.
We move the PMD outside the engine compartment to receive wind to aid in cooling. We also use a thermally conductive adhesive bond between the PMD and the plate to also aid in heat transfer from the PMD through the plate. What many don't realize is the PMD itself produces enough heat to degrade the internals.