As winter sets in, it’s common to see an increase in downtime across mining fleets – and one issue that keeps showing up is cable-driven heater valve failures.

These older systems don’t handle cold conditions well, and when they fail, it usually means lost time, extra maintenance, and unhappy operators.

The Problem with Cable Systems

Cable-operated heater valves are simple, but they come with ongoing issues:

  • Cables seize up or go stiff in the cold
  • They stretch and wear out over time
  • Temperature control becomes inconsistent
  • Heater taps need constant adjustment in the engine bay

It all adds up to machines sitting idle, technicians climbing in and out of engine bays, and operators stuck with poor cabin conditions.

A Better Way – Simple Plug & Play Upgrade

The Pro Cool Electronic Heater Valve Kit (Part No. 47.100) is built as a direct replacement for the original cable system.

It’s a plug-and-play setup, so it can be installed quickly without major modifications -getting machines back online faster.

Once fitted, the system delivers:

  • Accurate, stable cabin temperature control
  • Better reliability with fewer failures
  • Less maintenance over time
  • Reduced winter downtime
  • Improved safety by removing the need to access heater taps in the engine bay

What We’re Seeing in the Field

Operators notice the difference straight away:

  • Cabin temperature stays consistent
  • Adjustments respond quickly
  • No more chasing heater tap issues
  • Overall, a much easier system to use

It’s a small upgrade that makes a big difference during long shifts in cold conditions.

Built for Mining Fleets

  • Suits CAT 789C/D & 793C/D trucks
  • Designed for harsh mining environments
  • Complete kit for quick installation

In Stock Now – Ready for Winter

Winter downtime isn’t something you just have to live with.

Upgrading to an electronic heater valve is a straightforward way to:

  • Keep trucks running
  • Improve operator comfort
  • Cut down on maintenance time
  • Make the job safer for your team

Get in Touch

If you’re still running cable heater valves, now’s a good time to make the change.

Pro Cool Air Conditioning & Electrical
Keeping your fleet running -no matter the conditions.