Max-Flow SubZero Allison Transmission Cooler, 2006-2010 LBZ/LMM

Part# MAX-TC-0610ZERO

$399.99 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2006 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LBZ/LMM

The DmaxStore SubZero High Flow Allison Transmission Cooler is purpose built to keep your stock or built transmission running cooler than ever before. With a 483% larger oil capacity than the stock cooler, your transmission will stay cool. If your transmission temperatures are starting to creep up, this is the best way to fix the problem. The DmaxStore SubZero High Flow Transmission Cooler is much bigger than the stock unit. It is 120% thicker and 12% taller. The DmaxStore cooler is a much heavier duty unit than the stock one providing increased cooling efficiency. Not only will this cool better but it will last longer. Featuring a heavy duty aluminum exterior to prevent corrosion and cracking, you will be able to run this cooler on your truck for many miles without issue. The SubZero Cooler is the biggest transmission cooler that fits into the factory position, by utilizing the factory mounts. It takes advantage of the stock lines resulting in a lower chance for leaking while maintaining the OEM fit and finish.


  • 483% Larger Oil Capacity
  • 120% Thicker
  • 12% Taller
  • Corrosion Free Materials
  • Fits in the factory location


  • 1 - High Flow SubZero replacement Allison transmission cooler
  • 2 - Rubber Isolator Bushings


  • Upgraded Stainless Steel Hardware for harsh environments
  • Discounted Transmission Line Repair Kit

DmaxStore Notes:

  • When replacing the transmission cooler, you will lose about 1-2 quarts of transmission fluid. We recommend using Transynd Transmission Fluid
  • Fitment has only been verified with aftermarket Fleece lines. Other aftermarket lines have not been verified to fit.

Customer Reviews

Based on 2 reviews
Very Good👍🏼

Arrived fast and it’s built well. Installed it on an 06 LBZ with a 2002 Hd front clip so I wasn't sure if I’d have clearance probs. I have 5/8 aftermarket lines and flipped cooler so connections are at the bottom.They both land safely behind the bumper with no clearance probs. Trans now runs cooler dragging the dump trailer around.

Will Ryder

This really is a lot bigger than stock. Installed last night, drove around in Vegas 100° heat today. Temps were 30° cooler than normal. Never got over 170° going up and down hills scouting a camp site.
Install was easy and fast, less than an hour.