Hot Flush / The RIGHT Choice

The #1 Choice for Construction & Ag. / Hot Flush

What is Hot Flush?

Welcome and thank you for your interest in the Hot Flush system. Originally, the Hot Flush was designed for the automotive industry to clean the contamination from the transmission cooler after the transmission had failed; to prevent repeat and premature failures.

Today, Hot Flush is the #1 choice for cleaning oil coolers and heat exchangers in many industries, including agriculture and construction. We are the only patented flushing system in the world that will remove 99.99% of debris, varnish and other damaging materials from oil coolers/heat exchangers and lines.

Heavy Duty Heat Exchanger & Oil Cooler Flushing

All Heavy Duty Equipment, from Skid Steers to Combines, have Cooling Systems

Whether it's an engine, transmission, hydrostatic transmission, or hydraulic system failure; the odds of substantial damage (or a subsequent failure) is inevitable. This is solely due to the inability to clean all the contamination from the cooling system and lines.

Contamination is defined as any material that is not supposed to be there. Contaminates can be in the form of rust, scale, dirt, dust, water, products of wear and combustion. Contamination particles are very small and often not visible to the naked eye.

Earth moving equipment, large trucks and everything in between. Whether it is the transmission cooler, engine oil cooler, contaminated oil lines, closed-loop or hydraulic motors, Hot Flush is at task removing contamination with portable systems. No more downtime and repair due to contaminated oil systems. It is strongly recommended that Hot Flush is used not only to prevent repeat repairs, but also as part of a scheduled maintenance service to improve component longevity.

How Big is a Micron?

Substance Microns
Grain of Salt 100
Human Hair 70
White Blood Cell 25
Talcom Powder 10

Particulate contamination is measured across its largest diameter to determine size.


Many times coolers and cooler lines get overlooked. In order to be an efficient heat exchanger, today’s coolers make for wonderful heat exchangers, but to do that they end up with thousands of little "traps" for debris to get caught in. So the cooler manufacturers must design coolers that makes the oil molecules make contact with metal as much as possible. This leaves us with coolers that contain many various "weave" or "honeycomb" type patterns.

Heat Exchanger Honeycomb Pattern
Heat Exchanger Honeycomb Pattern
Heat Exchanger Honeycomb Pattern
Heat Exchanger Honeycomb Pattern

To ensure 99.9% contamination removal of the cooler and lines, the Hot Flush system delivers an automated process that utilizes reverse flushing. Hot Flush has 190 degree heated oil, checkable 28 micron filtration (finer filtration options available), a flow meter, and a long lasting stainless steel cabinet, but it’s our high-speed reversing that is the key to our success. Being able to instantly reverse the direction of flow every three second for one quarter of a second creates immense scrubbing energy in the cooling system that no one can match.


It is strongly recommended that Hot Flush is used not only to prevent repeat repairs, but also as part of a scheduled maintenance service on heavy duty cooling systems to improve component longevity. In order to perform efficiently, the cooling system must be free from rust, scale and other deposits. Preventative cleaning with the Hot Flush system will help avoid downtime caused by expensive out of service cleaning thats required for extremely dirty and neglected cooling systems.

Our Guarantee

Whatever the equipment—Hot Flush is at task removing contamination on all closed-loop cooling systems...

Hot Flush will reduce, if not eliminate:

  • The time spent on your current method of flushing
  • Eliminate unnecessary downtime and costly repairs
  • Reduce the amount of waste oil
  • Save you money on in-valuable filters
  • Expensive off-site cleaning


Pump/motor failure, bearing failure, overheating, cavitation and internal leaks are a few problems that will produce contamination within a hydraulic system. Contamination is the single largest contributor of hydraulic component failures. Contamination is considered to be any substance found in the hydraulic oil not specified by the oil producer. Water, dirt, dust, air, etc... Flushing the hydraulic system after the failure will ensure cleanliness and proper component life.

Independent Tests

The Hot Flush machine was tested by an independent party. The Hot Flush machine and a competitor’s flushing machine were tested on coolers that had been removed from vehicles with transmission failures.

The test was unique in that it allowed the competition device to clean the cooler first. Next, the Hot Flush machine was used on the same transmission after the competition had cleaned it. The results of these tests really speak for themselves.

Even after the competition flushed the transmission cooler (and not much was removed) Hot Flush was able to extract a drastic amount of debris that had been missed. This is a great, quick visual illustration of why Hot Flush is such a necessary addition to your oil cooler / heat exchanger maintenance routine.

See the Test Results Here

The Hot Flush macine cleaning the cooling device on a construction vehicle.

Get a Free Consultation

Hot Flush uses a patented process that cleans in a truly superior way. It removes the smallest of particles. It works incredibly fast. It is easy to use. We are here to answer any questions you may have about the machine or how it works. If you are tired of dealing with failures after a fresh build, hot flush can solve your contamination problems. Our patented process works better than anything you’ve ever tried. Guaranteed.

There are many different real-life examples we can share with you if you decide to get in contact. Our previous work and results will help illustrate why Hot Flush delivers a cleaning ability you need for your important application. In addition to a great functioning oil cooler / heat exchanger, Hot Flush is extremely cost effective—able to pay for itself and save you money well into the future. It is a simple, affordable, and effective solution we would be happy to tell you more about!

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