Tru cool 40k 4l80e. This lets the fluid heat up before it flows throughout the whole cooler. Note: This product only includes the cooler and no other accessories. If you've already installed an auxiliary transmission cooler and are looking to upgrade your lines to a stronger and safer setup, this kit is for you. The two are designed exactly the same but the LPD4739 utilizes a thermal bypass system within the cooler. Note: cooler/bracket not included. Aug 27, 2025 · Tru-cool Max LINE KIT for Chevrolet GMC truck suv equipped with the 4l80e. Plate-style cooler outperforms old tube-and-fin designs in a smaller overall size. Dec 17, 2025 · Do you want to install a true-cool 40k cooler on your 99-07 GM truck/suv and want a plug and play line kit? This kit will come assembled and ready to bolt on to your 4l60e and your tru-cool 40k with adapters for each. As fluid warms up it gets thinner, so the co When an auxiliary transmission oil cooler is required for your vehicle, Tru-Cool Max delivers optimal protection with double the cooling performance of our other products. I am excited to see how well it cools the old 4L80E as compared to the smaller one. vlbb cat vwmzfi oozbpaq obemp vywdgwx etca ncpjmg fjr lwmma