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As Seen On Tv Mishimoto | 2003-2009 Dodge Ram 5.9l / 6.7l Cummins Transmission Cooler Guaranteed [Z3LT2b1S]

$50.99 $163.99 -69%

Mishimoto Transmission Cooler for Dodge Ram Upgrade your 2003-2009 Dodge Ram 5.9L & 6.7L Cummins transmission with the Mishimoto Transmission Cooler. Designed to provide superior cooling performance, this innovative cooler is the perfect solution for

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As Seen On Tv Mishimoto | 2003-2009 Dodge Ram 5.9l / 6.7l Cummins Transmission Cooler Guaranteed [Z3LT2b1S]

Mishimoto Transmission Cooler for Dodge Ram

Upgrade your 2003-2009 Dodge Ram 5.9L & 6.7L Cummins transmission with the Mishimoto Transmission Cooler. Designed to provide superior cooling performance, this innovative cooler is the perfect solution for those looking to enhance the longevity and efficiency of their vehicle's transmission system.

Enhanced Cooling and Durability

The Mishimoto Transmission Cooler boasts a 212% increase in core volume and a 244% increase in fluid capacity, ensuring that your transmission remains at optimal temperatures under even the harshest conditions. The stacked-plate design not only provides robust cooling but also eliminates the common issue of corrosion-prone quick-disconnect fittings, ensuring a long-lasting and reliable performance.
  • 212% increase in core volume for superior cooling
  • 244% increase in fluid capacity for extended life

Serviceable Thermostat and Warranty

The Mishimoto Transmission Cooler includes a fully serviceable thermostat, allowing for fast warm-up in cold climates and constant cooling in hot climates. The thermostat can be easily bypassed by replacing it with the supplied stainless-steel bypass plug, giving you the flexibility to tailor the cooling to your specific needs. This cooler also comes with a patent (#D912,701) and a Mishimoto Lifetime Warranty, ensuring that you're investing in a product that you can trust for years to come.
  • Serviceable thermostat for fast warm-up and constant cooling
  • Patent #D912,701 for industry-leading innovation
  • Mishimoto Lifetime Warranty for peace of mind

What Our Customers Say

January 27, 2026

Absolutely no complaints!

The product is a stellar performer.

- StellarPerformer.

January 27, 2026

Absolutely no complaints!

I’m genuinely impressed by the quality.

- Isabella Perry.

January 27, 2026

Absolutely no complaints!

The quality of materials is immediately apparent.

- Micah D..

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