2007.5-2010 Silverado & Sierra 2500 & 3500 Duramax LMM Transmission Coolers

It's not hard to get the transmission on your Duramax LMM-powered Sierra or Silverado running hot, especially when you're towing heavy or running a bunch of extra horsepower and torque, and going into limp mode or hurting your transmission is a real possibility. Tier One's selection of transmission coolers for 2007.5-2010 Silverado & Sierra 2500 & 3500 Duramax LMM trucks help keep your transmission temperatures under control, even during extreme applications and higher levels of horsepower and torque. Each of these transmission coolers feature more surface area and more efficient designs than stock so that your Duramax LMM gets improved heat dissipation for its transmission fluid. We carry both Duramax LMM drop-in transmission coolers and universal auxiliary coolers to really take your cooling to the next level. Also check out our 2007.5-2010 Duramax LMM Transmission Pans or our 2007.5-2010 Duramax LMM Transmission Electronics!