Lubegard Kooler Kleen Transmission Cooler and Line Flush, 13.25 oz

Here is the mistake that comes back to bite people over and over: a transmission burns up, they drop in a rebuilt or reman unit, and they never touch the cooler or the lines. All that debris from the first failure, the clutch material, the fine metal, the varnish, is still sitting in the radiator cooler and the steel lines. The moment the new transmission starts pumping fluid, it draws that junk right back in and starts wearing itself out. This flush is the cheap step that stops that from happening.

Kooler Kleen sprays through the cooler and the cooler lines under pressure and carries out the grease, dirt, sludge, and metal shavings the old unit left behind. It works on the whole range of setups, automatic, CVT, dual-clutch, and manual coolers, and it flushes clean so there is nothing left in the circuit to contaminate the fresh fluid you are about to run. It contains no CFCs and no chlorinated solvents, so it will not attack seals or leave a residue that pollutes new ATF.

One 13.25 oz can with the 2-in-1 fitting is enough to service a typical cooler and line set. If you install a rebuilt transmission and skip this, you are gambling the whole job on a $20 shortcut. Flush the cooler, then fill it, and give the new unit a clean circuit to live in.