Transmission Fluid Stop Leak | Transmission Leak Sealer


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The automatic transmission is engineered to adapt to the power of the motor to meet various load and road operating conditions. It does this automatically, but a high-quality transmission fluid stop leak is required to maintain this complex system. The invention of the automatic transmission made driving cars much easier than driving with a standard transmission. It makes driving in traffic less stressful and if you’re parked on a hill, it is infinitely easier to get going with an automatic transmission than it is with a standard transmission.

The very first automatic transmissions were unreliable and ran inefficiently. As their designs and technology advanced, this led to automatic transmissions becoming far more efficient and reliable. From a driving standpoint, it made the driving experience less stressful.

How transmissions function seems quite simple, but a look inside the internal workings of an automatic transmission reveals an extremely complex mechanical device with many intricate moving parts. They are magical when they work but can become a nightmare when things start to go badly. It can be a costly and frustrating experience when they fail. One of the leading causes of automatic transmission failures is that the valve bodies start to fail, which prevents the transmission fluid from doing its job.









It takes a mechanical specialist that deals only with automatic transmissions to solve and fix their problems. They are that complex that only a select few mechanics are able to deal with them. They are not easy to diagnose, especially those that are electronically controlled with various computer sensors.

As the owner of your own vehicle, the only preventive maintenance task you can perform is to periodically check automatic transmission fluid levels and the condition of the oil. Always check your automatic transmission fluid on a level surface while your vehicle is idling and when the fluid has reached operating temperatures.

If fluid levels fall below the normal graduation levels found on your dipstick, this low fluid level could cause your automatic transmission to shift. If your fluid levels have dropped below these graduation lines found on your dipstick, then most likely your transmission is experiencing some sort of leak.

First, check your transmission cooler lines to see if there are any points where you see fluid leaking or having caused a wet spot. If the leak is found to be coming from the cooler line, then the solution is to simply replace the line. There are two other areas that could cause potential leaks. The other areas where ATF fluid could be leaking from might be the gaskets or the seals in your transmission. These gaskets or seals tend to dry up or shrink over time due to standard wear and tear, plus exposure to heat.

One simple and potentially money-saving solution would be to use Champion Transmission Fluid Stop Leak #4074. This technically advanced automotive stop leak is engineered to stop transmission system leaks caused by gaskets or seals breaking down and drying up from standard wear and tear. Champion Transmission Fluid Stop Leak #4074 can simply be added directly to your current transmission fluid and it immediately goes to work as you drive.

This high-performance transmission leak sealer was formulated to be compatible with synthetic fluids and conventional-based fluids used in transmission, power steering, and motors. It is a unique problem-solving lubricant that goes to work by restoring cracked, dried, and shrunken gaskets and rubber seals. It is concentrated and effective.

Champion Transmission Fluid Stop Leak #4074 works in all domestic and import automatic transmissions. It is a simple solution to stop gasket and seal leaks that are caused by normal wear and tear. This transmission leak sealer will revitalize rubber seals, making them pliable and soft, as well as help to do the same for gaskets.

Directions for Use:

  1. Pour Champion Transmission Fluid Stop Leak #4074 directly into the reservoir via the normal fill spot.
  2. Bring the fluid level up to the full mark found on your ATF dipstick.
  3. It may take a few days for the fluid to do its job, so continue to monitor for leaks.
  4. Start out with the minimum treat rate of 1.5 ounces per quart of transmission fluid capacity.
  5. If more fluid is needed to completely stop leaks, then the initial treatment can be increased to the maximum, which is 3 ounces per quart of transmission fluid capacity.

Treat Rate:

  • Minimum – 1.5 ounce per quart of transmission fluid capacity
  • Maximum – 3 ounces per quart of transmission fluid capacity

Champion Transmission Fluid Stop Leak #4074 Attributes:

  • engineered to revitalize cracked, dried, and shrunken gaskets and rubber seals
  • simple to use
  • add to existing transmission fluid
  • goes to work as you drive
  • compatible with conventional and synthetic fluids
  • use in all domestic and import automatic transmissions and power steering components
  • thermally stable
  • high-performance chemistry
  • comes in viscosity grade ISO 32

Champion Transmission Fluid Stop Leak spec sheet.


24-8 Oz. Bottle/Case, 12-16 Oz. Bottle/Case, 12 Quart/Case, 4×1 Gallon/Case


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