Mishimoto MMTC-RAM-94SL Transmission Cooler for 94-02 Dodge Ram 2500/3500 5.9L

Vehicle Fitment

• 1994-2002 Dodge Ram 2500/3500 (5.9L I6 Cummins)

Features

• Direct-fit transmission cooler engineered for 2nd-gen Ram trucks
• Tube-and-fin core design for enhanced heat dissipation
• 116 % increase in core volume compared to stock cooler
• 141 % more fluid capacity than OEM cooler
• 134 % greater fin surface area for improved cooling efficiency
• Includes CNC-machined stainless steel hose barb fittings
• Supplied transmission hose and worm gear clamps for installation
• Mishimoto Limited Lifetime Warranty for long-term peace of mind

Specifications

• Core type: Tube-and-fin
• Core rows: 22
• Core height: ~8.5 in
• Core length: ~16.8 in
• Core thickness: ~1.4 in
• Material: 6061 aluminum
• Fluid capacity: ~0.66 qt

Included Components

• 1x Mishimoto MMTC-RAM-94SL transmission cooler
• 2x CNC-machined stainless steel hose barb fittings
• 1x 29.5" transmission hose
• 6x worm gear clamps
• Mounting hardware

Product Description

The Mishimoto MMTC-RAM-94SL Transmission Cooler is a high-capacity cooling upgrade designed specifically for 1994-2002 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L Cummins inline-six engine. Its 22-row tube-and-fin core greatly increases core volume, fluid capacity, and fin surface area compared to factory coolers, helping maintain lower transmission fluid temperatures during heavy towing, hauling, or daily driving. This improved cooling performance protects transmission components from heat-related wear and extends the life of your drivetrain.

Installation is straightforward: the kit includes stainless steel hose barb fittings, a transmission hose, and worm gear clamps for a secure connection. Note that the supplied fittings require cutting the stock cooler lines, as quick-disconnect fittings are not reused. Built from durable aluminum and backed by Mishimoto's Limited Lifetime Warranty, this cooler delivers long-lasting reliability for enthusiasts and work-truck owners alike.