MISHIMOTO MMTC-DMAX-03SL TRANSMISSION COOLER - SILVER 2003-2005 GM DURAMAX 6.6L LB7/LLY

• Direct fit for all 2003-2005 Chevrolet/GMC 6.6L Duramax (LB7/LLY)
• Stacked-plate construction for maximum durability and superior cooling
• CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
• 174% greater core volume than stock cooler
• 192% greater external fin surface area over stock cooler
• Patent #D900,161
• Mishimoto Lifetime Warranty

There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.

Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2003-2005 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174% greater core volume, and 192% greater fin surface area than the stock 2003-2005 Duramax transmission cooler.

The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

The MISHIMOTO MMTC-DMAX-03SL Transmission Cooler for the 2003-2005 GM Duramax 6.6L LB7/LLY is engineered to elevate your vehicle’s performance while ensuring optimal transmission cooling. This high-performance cooler is a direct-fit solution, specifically designed to integrate seamlessly with all 2003-2005 Chevrolet and GMC Duramax models.

Constructed with a stacked-plate design, this transmission cooler offers exceptional durability and maximizes cooling efficiency. The innovative design results in a core that delivers a staggering 174% greater volume than the stock unit, coupled with an impressive 192% increase in external fin surface area. This substantial enhancement ensures that your transmission remains cool, even under the most demanding conditions, whether you're towing heavy loads or navigating challenging terrains.

Installation is straightforward, thanks to the CNC-machined adapters that allow for easy connections to stock fluid lines or AN lines. The kit includes custom-made mounting brackets, high-quality transmission hoses, and all necessary hardware, making it hassle-free to set up your new transmission cooler.

Mishimoto stands behind its products with a Lifetime Warranty, providing peace of mind and assurance for every unit sold. The included components, such as worm gear clamps, zip ties, and the original fittings, ensure that you have everything needed for a complete and reliable installation.

Upgrade your Duramax with the MISHIMOTO MMTC-DMAX-03SL Transmission Cooler to experience enhanced performance and longevity. Whether for daily driving, work, or weekend adventures, this cooler is your solution to preventing transmission overheating and ensuring smooth operation. Keep your vehicle’s transmission cool and efficient with this high-quality aftermarket component that combines unparalleled performance with engineering excellence.